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HomeMy Public PortalAbout2022-11-14 work session packetNOTICE OF CITY COUNCIL WORK SESSION AND AGENDAi MONDAY, NOVEMBER 14, 2022 – 5:30 P.M. CITY COUNCIL CHAMBERS ~ JOHN G. CHRISTY MUNICIPAL BUILDING ~ 320 E. MCCARTY STREET TO JOIN VIRTUALLY: https://jeffersoncity.webex.com/jeffersoncity/j.php?MTID=m5ea7a51dd47fd97523ec8fa36aae2378 CALL-IN PARTICIPATION AVAILABLE AT: 1-404-397-1516 MEETING NUMBER: 2486 338 2635 MEETING PASSWORD: 1234 TENTATIVE AGENDA 1. CALL TO ORDER 2. ROLL CALL 3. PARKING GARAGES DISCUSSION a. Parking Studies b. Jefferson Street Garage Condition Discussion c. Madison Street Garage Condition Assessment d. Madison Street Garage Replacement Options 4. PUBLIC COMMENT 5. ADJOURN i Individuals should contact the ADA Coordinator at (573) 634 -6570 to request accommodations or alternative formats as required under the Americans with Disabilities Act. Please allow three business days to process the request. Department of Public Works Memorandum 320 E. McCarty Street • Jefferson City, Missouri 65101 • P 573-634-6410 • F 573-634-6562 • www.jeffcitymo.orq Date: November 9, 2022 To: Mayor and City Council Through: Steven Crowell, City Administrator From: Matt Morasch, P.E., Director of Public Works Subject: Parking Studies for City Council Work Session Attached are three studies prepared by Structural Engineering Associates (SEA). The first two look at the rehabilitation needs of the City's two parking structures, the Jefferson Street Garage and the Madison Street Garage. A third report is also provided that looks at options for replacement of the Madison Street Garage. Below are summaries of each report and staff recommendation as how to proceed. We believe the main discussion point for tonight's meeting is to provide staff feedback to either purse rehabilitation or replacement of the Madison Garage. Following this work session, we recommend a 30 -day public comment period on the reports to allow time for the community to view the studies, ask questions and provide input to the City Council on the topic. Jefferson Street Garage Condition Assessment Report Summary: Based on review of the report for the Jefferson Street Parking Garage staff is recommending that it be repaired and that we pursue a contract amendment with SEA (approximately $50,000) to provide staff with the necessary specifications to complete the work. The estimated costs of all the work for the Jefferson Garage is approximately $415,000 (including design/contingency). The work generally includes: A. Joint/Crack Sealing; B. Membrane covering of the upper deck; C. Veneer brick panel repair (this work has begun as it was noted as a safety issue); D. Steel painting and Handrail repair/replacement; E. Traffic cable rail repair/replacement; F. Lighting and Plumbing repair/replacement. Public Works' CORE Mission and Values improve the Community - take Ownership — deliver Results — Empathize with the customer Madison Street Garage Condition Assessment and Replacement Options Reports Summary: Based on staffs review of the two reports we would recommend the Council pursue the Replacement Option. Below are summaries of each report. Option 1. Condition Assessment Summary: The estimated costs of full structural repair of the garage and replacement of it's mechanical electrical and plumbing (MEP) and parking control systems is estimated to be in the range of $12M ($8M construction + $4M contingency/mobilization/profit/engineering). Below are notable attributes of the study and garage: 1. The garage contains approximately 615 parking spaces; 2. The garage was constructed in multiple phases and consists of two different structures; a. 1961 three level west structure constructed b. 1974 fourth level added to west structure and elevator constructed c. 1982 east structure was constructed attaching to all four existing levels d. 1990 fifth level constructed over west structure only and elevator extended 3. Due to type and extent of repairs, the garage will need to be taken out of service to repair, (page 37.); 4. Cost Estimate for Repair page 38, illustrative items of costs include; a. Slab removal and replacement, much of which is unseen damage (analogous to termite damage in a wall). This was determined by chain dragging the slabs (page10). The damage is extensive at 50,000+ SF = $5.1M+ of the $8M estimate of direct construction costs (appendix E, demonstrates the randomness of repair needs); b. Repair/Replace Stairwells $200k c. Report suggests waterproof membranes be installed on all floors, estimated costs of $750k; d. Architectural analysis (appendix A) indicates many aspects of the garage do not meet current codes and some cannot be corrected because they are integral to how the garage was constructed, items include; i. ADA issues prevalent throughout the space including accessible paths, ramps, handrails, various clearances width/height of stairwells, etc. ii. Traffic convergences at up/down movements are sight issues and don't meet current best practice (potential liability issue). e. MEP items (appendix B) most systems are in working order but because of age, replacement should be planned and upgraded to current codes to the extent they can be when any major rehabilitation is undertaken, estimate is approximately $400k; f. Parking Control Systems should be modernized and upgraded, estimate is approximately $200k; g. Elevator Upgrades due to age, estimate is approximately $125k; 5. Report indicates the above repairs to slabs and other work will slow further deterioration, but one should expect the deterioration to continue and similar periodic repairs should be expected (example 5-10 yrs replace floor liners and check for new and additional floor slabs that need replaced). Public Works' CORE Mission and Values improve the Community - take Ownership - deliver Results - Empathize with the customer Option 2. Replacement Options: The consultants came up with many options for replacement of the garage and then paired down to three to provide an illustrative example of possibilities and relative costs so that the Council could consider replacement versus extensive repair. No option for replacement is predetermined. Page 3 and 4 demonstrate the three options attributes. The descriptions include: A. number of spaces; B. number of floors tall (some view upper floors as undesirable due to the time to takes to circulate up/down through the garage); C. two are options are the same height as the existing garage (5 -story) with different ramp configurations; D. one option is shorter (3 -story) but would need to acquire adjoining property; E. all contain ground floor retail as an option (from a planning standpoint street frontage retail is desirable especially in urban settings and has the ability to generate a different revenue stream); Page 5, demonstrates relative costs between the three options ($38-$42M) and equates them to a per space costs. The per space costs range between $55-$65k. At first look, the costs per space are considerably more than previous studies the City has received on parking structures, which have been in the $20-$25k per space range. The difference is partly explained by inflation but they also include (according to the consultant) contingency, cost escalation factors, demolition and cost for retail. Those costs account for about $18.5k per space. Accounting for those factors, the costs could range in the $35-$45k per space range. The Architect on the project, BNIM, reports they have seen some recent precast options for as low as $30k per space. General Concluding Remarks: The City's Parking Utility has been a self-supporting system that generates revenue to cover all its expenses. The parking rates were last modified in 2005. At the time the rates were increased the Council indicated its intention to save any revenue above expenses so that a future garage could be pursed. There is over $5M in the unrestricted fund balance of the parking fund and staff is in the process of proposing new rates to help offset current expenses as well as continue to build the fund so that a new garage or major a rehabilitation of the existing garage can be achieved. Once a direction is chosen by the Council to either pursue rehabilitation or to pursue a new structure, staff can work with the consultant to further define the project and begin a more detailed financial analyses of how to pay for it. Staff will provide a more detailed presentation of the topic at the upcoming work session and our consultants will be on hand to answer questions. If you have any questions prior to the meeting please feel free to call Britt Smith or myself. Thanks. Public Works' CORE Mission and Values improve the Community - take Ownership — deliver Results — Empathize with the customer Jefferson Street Garage Condition Assessment Prepared for: City of Jefferson, Missouri October 10, 2022 Prepared by: Structural Engineering Associates, Inc. CONDITION ASSESSMENT Jefferson Street Garage Jefferson City, Missouri October 10, 2022 1000 Walnut, Suite 1570 Kansas City, Missouri 64106 Phone: 816/421-1042 Fax: 816/421-1061 Jefferson City, MO – Jefferson Street Garage Condition Assessment City of Jefferson, Missouri TABLE OF CONTENTS Executive Summary ............................................................................................ 1 Introduction ......................................................................................................... 3 General Garage Description ................................................................................ 4 Observations and Findings .................................................................................. 8 Discussion ......................................................................................................... 19 Conclusions and Recommendations ................................................................. 22 Engineer’s Opinion of Probable Construction Cost ........................................... 25 Appendixes · Appendix A – Custom Engineering’s Report · Appendix B – Chloride-Ion Test Results Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 1 City of Jefferson, Missouri 1 EXECUTIVE SUMMARY Structural Engineering Associates, Inc. (SEA) was commissioned by the City of Jefferson, Missouri, to perform a condition assessment of the Jefferson Street parking garage located at the corner of Jefferson Street and Commercial Avenue. The small garage has two levels of parking and is a cast in place concrete structure with precast concrete veneer panels. The field investigations and testing team for this condition study consisted of SEA engineering and technical staff as well as engineering staff from Custom Engineering, the Mechanical, Electrical, and Plumbing engineering team that provided a condition assessment from an MEP perspective. Numerous items requiring attention were identified in the condition assessment. These include primarily structural issues, life safety issues, and plumbing considerations. Of particular concern is the support conditions for the precast concrete veneer panels on the north elevation, along Commercial Avenue. The concrete around the support points exhibit damage. The cause and extent of the damage is unknown at this time, but at least two of the panels may have their supports compromised. This could potentially be a life safety concern for pedestrians and vehicles travelling along Commercial Ave. It is recommended that Commercial Ave be temporarily closed until these panels may be secured in place or otherwise repaired. These are discussed in more detail in the “Recommendations” section of this report and in the report provided by the MEP consultant. SEA’s Engineer’s Opinion of Probable Construction Costs for these repairs is around $415,127. Please refer to the “Cost Estimate” section of this report for a breakdown of the costs. This Opinion of Cost includes contractor’s overhead and profit, as well as projected mobilization costs, together Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 2 City of Jefferson, Missouri 2 with Engineering design and Construction Administration (CA) phase services. A design contingency and a construction contingency of 15% each has also been included to address design changes as the project moves forward and changes in construction as unforeseen conditions are encountered during construction. Investigation of the garage for hazardous materials was beyond the scope of this project. If the project proceeds to repair documents, the owner should employ the services of an environmental firm to perform a study to address these issues. This report has been prepared to enable the owner to consider the observed conditions described within the report and recommended repairs. This report is intended for the clients use and is to be used at their sole discretion and risk. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 3 City of Jefferson, Missouri 3 INTRODUCTION Structural Engineering Associates, Inc. (SEA) was commissioned by the City of Jefferson to prepare this condition study of The Jefferson Street Parking Garage in Jefferson City, Missouri, located at the corner of Jefferson Street and Commercial Avenue. Custom Engineering was employed to perform an assessment of mechanical, electrical and plumbing systems. Their report is included in Appendix A. From our visual assessment and field survey results, a repair strategy can be developed in the near term to extend the anticipated life cycle and serviceability of this facility. This study will address the present conditions of the garage, observations, findings, our recommendations for repairs, and an Engineer’s Opinion of Probable Construction Costs. SEA greatly appreciates the assistance of the City of Jefferson staff during the investigations. Calculations were not performed to determine the structural adequacy of the garage as designed or constructed. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 4 City of Jefferson, Missouri 4 GENERAL GARAGE DESCRIPTION Photo 1 – Looking at the southwest corner of the garage The Jefferson Street Garage is rectangular in plan, with two levels of parking. The main footprint of the garage is approximately 195 feet by 60 feet, with the long dimension running East-West. Although Jefferson City’s streets do not align with the cardinal directions, for the purposes of this report Jefferson Street is considered to run North-South, and Commercial Avenue East-West (Satellite Image). Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 5 City of Jefferson, Missouri 5 Satellite Image Based on drawings provided by the City of Jefferson for this assessment, the garage was constructed in or around 1991. It is a mild reinforced concrete framed system, with pan joists supported by very large concrete girders. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 6 City of Jefferson, Missouri 6 Photo 2 – The garage framing system The exterior façade is made up of precast concrete panels featuring a thin brick veneer. Photo 3 – The northeast corner of the garage The garage is constructed in the side of a hill, so no ramps are needed between the two levels of parking. The lower level is accessed at grade on the east elevation via an alleyway and has 38 total stalls. The upper level is also accessed at grade, but at the southwest corner of the garage. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 7 City of Jefferson, Missouri 7 The upper level has 38 regular parking stalls and four accessible parking stalls. There are two sets of stairs; one at the northwest corner provides access to both the upper and lower levels, a stair at the southeast corner provides access to the upper level from the alleyway. Photo 4 – Stairs Photo 5 - Stairs Additional drawings provided by the city dated 2009 show rehabilitation of the garage. Repairs included removal and replacement of slab on grade at the upper level in the southwest corner and application of a waterproofing membrane. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 8 City of Jefferson, Missouri 8 OBSERVATIONS AND FINDINGS General SEA conducted a visual survey of the structural framing of the garage to attempt to identify locations of deterioration within the garage. Typical types of deterioration include visible corrosion in steel items such as embeds or handrails, cracks in the concrete framing members and corrosion delaminations in the concrete soffits, slabs and walls. Visual observations were performed on the soffits, floor slabs, slab soffits, walls, stairways, and the garage exterior. The survey also included chain-dragging and sounding of the top surfaces of the concrete elevated deck. Chain dragging was performed to sound for delaminations resulting from expansion of corroded reinforcing steel in the slab. Chain dragging is a method in which metal chains are dragged across the concrete surface. In doing so, the chains resonate a sound over hollow areas, giving a distinct change in sound thus locating areas of delamination. Chain dragging followed procedures described in ASTM D4580-12 (Photo 6). Photo 6 – Sample of Chain Dragging Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 9 City of Jefferson, Missouri 9 Areas of visible and/or audible delaminations were identified and marked with spray paint. The assessment also included limited testing for chloride-ion content of the upper level slab. Concrete Framed Slab The chain dragging survey found very little delaminations for the upper level of the garage, less than 10 square feet. The waterproofing membrane that was applied in the previous repair project has failed dramatically, especially along the drive lane in the center of the garage. Given the age of the membrane, the severity of failure seems curious. Large areas of membrane are completely missing, and what remains in the traffic lane is sparse. It is unclear if these conditions were caused by improper preparation or application of the membrane product, or if wear has been substantial due to high usage, or if damage has been caused by the use of snow plows on the garage. Photo 7 – Upper level slab Where the membrane is missing, there is pervasive cracking throughout the slab surface. The cause of the cracking is unclear, but much of the cracking resembles drying shrinkage cracking, which occurs during or soon after the initial curing of the concrete. From the top surface of the Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 10 City of Jefferson, Missouri 10 slab, the total quantity of cracks in terms of linear feet could not be directly observed due to some of the waterproofing membrane still adhered to the slab, especially in the parking stalls. From below, the cracking pattern is visible overhead. A representative portion of the cracks here were documented to establish an approximate quantity of crack repair needed for the whole slab. Photo 8 – The garage framing system The condition of the concrete framing for the upper level was visually observed from below. Although the cracking visible here was pervasive, there was very little deterioration in terms of concrete spalling. Quantity of repairs on the order of about 3 square feet was observed. Near the northwest corner of the garage, the existing waterproofing system was built up, or thickened, to provide adequate drainage away from a low spot on the garage surface. Failure of the waterproofing system here has allowed moisture to collect below the membrane in the low spot and now has no good path for drainage or evaporation. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 11 City of Jefferson, Missouri 11 Photo 9 – Built up membrane on upper level Precast Concrete Veneer Panels The precast panels making up the veneer of the garage have various condition issues. The most severe issue is focused on the support conditions for the panels on the north elevation, in Commercial Ave. In one of the central bays there are precast panels installed one above the other. Here the lower panel has four support points along the bottom. Three of the four supports appear to have failed or broken. The cause for the failure is unclear at this time. Another panel near the west end of the north elevation has a similar condition, where one of the four support points is broken. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 12 City of Jefferson, Missouri 12 Photo 10 – Precast connection – Intact Photo 11 - Precast connection – Broken Also observed on the north elevation where one panel is above the other, the support configuration for the upper panels are unclear, but there may be some problems with them based on observations from the exterior. It looks as though there may be steel shim stacks between the two panels that is corroding and expanding, causing localized fracturing of the precast panels. The severity of this condition and the impact on the support of these upper panels are unclear. Photo 12 – Precast panels, north elevation Photo 13 – Closeup of precast connection For the precast panels above the north openings, the support configuration is different. Steel embeds within the precast panels are welded to embeds in the cast in place concrete construction. Most of these connections appear fine where observed, but at least ten require cleaning and Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 13 City of Jefferson, Missouri 13 recoating. Two may even require additional repair due to potential concrete fracture in the precast panel around the embed. Photo 14 – Precast spandrel connections Photo 15 - Precast spandrel connection Precast panels on at least two of the concrete columns near the stairs have cracked or fractured. Photo 16 – Precast cladding on column Photo 17 - Precast cladding on column Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 14 City of Jefferson, Missouri 14 Stairs Concrete deterioration at the stairs is related to corrosion of the guardrail posts embedded within the concrete. This condition affects both stairs. Photo 18 – Damage at handrail base Photo 19 – Cracking in landing slab In addition, the guardrails as constructed do not meet current code requirements due to the size of the openings. The canopies above the stairs could not be observed closely as part of this assessment. The original construction drawings show pre-engineered metal trusses and wood framing hidden within the canopies. The condition of these components could not be directly observed. It should be noted that the southeast canopy configuration does not reflect the design drawings; it has two central steel support posts rather than four concrete columns at the corners. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 15 City of Jefferson, Missouri 15 Photo 20 – Northwest stair canopy Photo 21 – Southeast stair canopy The bases of the two steel posts have corrosion and concrete deterioration. Photo 22 – Southeast stair canopy base Other Items In the lower level of the garage, the driving surface is slab on grade. Construction joints throughout the driving surface have joint sealant. The joint sealant is deteriorated, especially closer to the east entrance. Replacement of the sealant for these joints is not a critical repair item but may be an alternate repair item as part of a repair project. Cove joints along the east elevation at grade Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 16 City of Jefferson, Missouri 16 and along the north elevation are subject to substantially more moisture intrusion and should be repaired. On the lower level, traffic barrier cables separate the north parking stalls from Commercial Ave, where there is a drop in elevation from the garage to the alley like street. Three total traffic barrier cables are broken, each approximately 70 feet in length. Photo 23 – Broken barrier cable Forensics Testing Forensics testing of chloride-ion contamination was conducted in accordance with AASHTO T- 260 on the elevated level. SEA obtained concrete samples for testing of chloride ion content contamination on elevated level of the garage at 2 locations taking 5 samples. The depths were from ¼” to 1”, 1” to 2”, and 2” to 3”, except where only two depths were tested. The results of the chloride-ions contamination testing (in parts per million, ppm) of the slabs can be seen in Table 1 and Chart 1. A copy of the test results is included in Appendix B. Where tested, the chloride-ion content at the depth where reinforcing is typically located, has reached a corrosion threshold level (Above 300/500 ppm). Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 17 City of Jefferson, Missouri 17 Depth of Sample Sample ID 1/4" - 1" 1" - 2" 2" - 3" Location JP1* 1770 547 Parking Stall JT1 779 460 365 Traffic Lane *Only two depths sampled Table 1 – Chloride Testing Results Chart 1 shows each chloride sample plotted by chloride content vs. depth in the concrete slab. The depth of reinforcing steel was based on review of the original construction drawings provided by the client. Where data points or lines are both to the right of the corrosion threshold and below the depth of slab reinforcement, there is the potential for corrosion. According to Jefferson City personnel, the waterproofing membrane on the upper level was added in part to adress the cracking present in the top of the slab. Membranes are often added to protect the concrete from damage that would occur from chloride intrusion, often associated with the application of de-icing salts to the parking surface or carried onto the garage by vehicles. The JP1JT1 0 1 2 3 0 500 1000 1500 2000 2500Depth of Sample (in)Chloride Concentration (ppm) Chloride Ion Content: Depth 0 - 3" JP1 JT1 Top of Slab Area of Potential Corrosion Sample ID Corrosion Threshold Zone 300 - 500 ppm Depth of Slab Reinforcement Chart 1 – Chloride Concentrations Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 18 City of Jefferson, Missouri 18 chloride concentrations at the depth that reinforcing is in the slab is sufficient to initiate corrosion. More on the corrosion process and membranes is included in the discussion portion of this report. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 19 City of Jefferson, Missouri 19 DISCUSSION The Jefferson Street Garage is subject to deterioration of concrete elements due to corrosion of reinforcing steel, embedded metals, joint sealant, and other issues. The following briefly describes these various deterioration mechanisms. Delamination/Spall A delamination is a concrete fracture resulting from reinforcement corrosion. Corrosion products build up on the surface of reinforcement producing large tensile forces in the concrete. As steel corrodes, it expands in a laminar fashion in the form of rust pack. This expansion can occupy up to 10 times the volume of the original metal. In doing so it applies pressure against the concrete toward the surface. When the concrete can no longer resist these stresses, it cracks, forming a delamination. As corrosion continues, the crack usually progresses to the concrete surface forming a de-bonded, loose piece of concrete known as a spall. The result of reinforcement corrosion and concrete delamination is a loss of the reinforcement/concrete bond and reinforcement cross-sectional area. This damage diminishes structural load capacity. Corrosion Corrosion is an electrochemical process that deteriorates metals. Typically, reinforcement embedded in concrete is protected by a thin oxide film on the surface of the metal resulting from the concrete’s naturally high alkalinity. However, aggressive ions can penetrate the concrete and break down the oxide film. These ions, typically chloride ions from de-icing salts, are carried into the garage by vehicles from salt-treated streets or applied directly to the concrete. They can also be in the original concrete in the form of chloride-bearing concrete admixtures. Corrosion can also be initiated if the concrete alkalinity is reduced. One way of reducing the concrete’s alkalinity is through the process known as carbonation. Carbonation results when carbon dioxide or other acidic gas pollutants from the atmosphere combine with water in the concrete to form non-alkaline carbonates. Corrosion will occur when carbonation reaches the depth of the reinforcement. A combination of carbonation and chloride contamination is particularly aggressive. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 20 City of Jefferson, Missouri 20 The corrosion process results from the formation of a corrosion “cell” that is an electrical circuit composed of an anode, a cathode, electrolyte (concrete in our case) and a metallic path from the anode to the cathode (the reinforcing bar itself). Similar to an ordinary battery, current flows from the anode through the electrolyte onto the cathode and completes the circuit through the metallic path to the anode. Metal loss occurs at the anode where current is discharged. Chloride Ion Testing Levels The primary cause of corrosion in garages are generally caused by chloride ions from de-icing salts. This will typically result in elevated chloride ion testing levels for the concrete samples taken. The threshold of chloride concentration that will initiate corrosion is still a debated subject in the scientific community. The wide variety of possible concrete mix designs and environmental factors facing each individual structure contribute to lack of consensus on this matter. Chloride concentrations of 300 to 500 ppm (mg/kg) are generally considered high enough to initiate and promote corrosion of unprotected steel. In the case of contamination from application of de-icing chemicals, the chloride ion contents in the samples are highest near the top of the slab. This could come in the form of application of de-icing salts to the deck itself, or de-icing salts dropping from the cars parked inside the garage. As these chloride ion levels increase, acceleration of corrosion will occur to the reinforcing steel due to a corrosion cell that is becoming increasingly active. Efflorescence Efflorescence is a white deposit on concrete and masonry surfaces. Moisture leaches water- soluble chemicals from the concrete to the concrete surface where the moisture evaporates leaving the dried chemicals. If a large volume of moisture emanates from one point, a “stalactite” of chemical forms, typically on a slab ceiling. Efflorescence indicates through-slab cracks that allow moisture and chloride to penetrate to joist, beam, and bottom slab reinforcement. Water-soluble chemicals can also damage vehicle finishes. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 21 City of Jefferson, Missouri 21 Waterproofing Membrane Waterproofing Membranes protect the slabs and reinforcing steel from moisture and greatly reduce the chances of corrosion. Waterproofing membranes can also protect joint sealants allowing them to last up to ten years. However, if the waterproofing membrane gets scraped or becomes debonded from the slab, moisture can penetrate through to the slab. It is important to repair any deficient areas of waterproofing membrane, as well as maintain it. Depending on wear, a typical urethane waterproofing membrane should have the top and intermediate coats replaced or overcoated every five years to keep the membrane performing at optimum levels. Epoxy based and coal tar epoxy systems can provide a longer anticipated life cycle. Sealant Joints Sealant observed at most locations in the garage is deteriorating and splitting. When sealant begins to revert, it loses its ability to conform to the changing dimensions of the joint. Some sealant is reverting and becoming nonresponsive to expansion/contraction or other movement within the structure. Joint sealant should be replaced every five years to seven years. With a waterproofing membrane covering the joint sealant from exposure to UV rays, joint sealant can last up to ten years. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 22 City of Jefferson, Missouri 22 CONCLUSIONS AND RECOMMENDATIONS The recommended repairs for the Jefferson Street Garage are common repairs for cast in place concrete parking garages, with the exception of the recommended repairs for the precast veneer panels. It is recommended that the whole of the waterproofing membrane be removed and replaced. While the existing membrane is removed and the surface is prepared for a new application, all cracks in the slab should be routed and sealed using a joint sealant compatible with the new membrane. Construction joints in the slab should have new sealant installed and the perimeter of the slab should have the joint sealant removed and replaced. At the low point of the slab in the northwest corner, the best solution for drainage would be to add a new drain here. Also during membrane removal and replacement, the surface of the slab should be sounded while it is exposed. The chain dragging survey performed for this study yielded less than 10 square feet of delaminations. During this repair, additional delaminations may have formed, and general localized concrete repairs may need to be performed prior to the new membrane being applied. As a future maintenance plan, it is recommended that the garage be washed down as often as the membrane manufacturer recommends, but not less than once a year. It is a good plan to hose down the top surface of the garage once in the spring, to wash away the de-icing salts that have accumulated over the winter. Additional washings will help to extend the life of the structure and the protective membrane. It is also recommended that snow removal operations use snow blades with a rubber tip. Steel snow blades can damage the membrane. The precast concrete veneer panels exhibit damage around the support points for several of the panels. The cause and extent of this damage is unknown at this time, but it is clear that at least two of the panels on the north elevation may have their supports compromised. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 23 City of Jefferson, Missouri 23 This could potentially be a life safety concern for pedestrians and vehicles travelling along Commercial Ave. It is recommended that Commercial Ave be temporarily closed until these panels may be secured in place or otherwise repaired. As a permanent repair, SEA recommends removing the four lower panels from the north elevation of the garage. This would likely necessitate the removal of the panels directly above these panels. Once down, the supports for the panels may be repaired or reconfigured. Two smaller rectangular panels, one near each stairway, should also be removed and repaired. The smaller panels clad the exiting cast in place columns. Along with these repairs, SEA recommends a periodic observation for the other precast panels and their support conditions. It is recommended that localized repairs be performed for the steel embed connections for many of the precast panels in the garage. This would include sandblasting and recoating of the steel embed plates. Additionally, some steel cleaning and recoating is needed for the baseplates at the southeast stair canopy, along with localized concrete repair. Some general concrete repairs are needed on the stairs. These would generally be patching where the embedded steel handrail posts have corroded and fractured small areas of concrete. The corrosion of the handrail posts will continue to cause issues with the stairs, they also do not meet current code requirements. It is recommended that all the handrails or guardrails for the garage be removed and replaced. The replacement system should have interior rails more closely spaced, and the baseplates would be surface mounted. It is recommended that joint sealant at the slab on grade level be removed and replaced. While not a critical repair item, it may be included as an alternate to a larger repair project. Three traffic barrier cables on the lower level should be replaced. Mechanical Electrical and Plumbing Custom Engineering performed a review of the existing facility’s electrical and plumbing systems. There are no mechanical systems for the structure. Custom Engineering recommends photocell Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 24 City of Jefferson, Missouri 24 control of the light fixtures at the opening of the opening to the garage. They recommend occupancy sensors for light fixtures in the lower level. Custom Engineering recommends surveillance cameras in the lower level and on the upper level light poles. Custom Engineering recommends replacing the six upper level area drains and associated piping. Custom Engineering’s full report is included in Appendix A. Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 25 City of Jefferson, Missouri 25 ENGINEER’S OPINION OF PROBABLE CONSTRUCTION COSTS The following is SEA’s Engineer’s Opinion of Probable Construction Costs for the recommended repairs for the Jefferson Street Garage in Jefferson City, MO. This summary includes the structural repair recommendations as well as recommendations of repair for Electrical and Plumbing. The estimated quantities and prices calculated are based on 2022 field surveys, average values as obtained on bids submitted by contractors with similar projects and published cost estimating data. If these repairs are to be postponed beyond 2022, additional costs should be anticipated due to increased quantities as well as increase in material and construction costs. Note: The quantities are estimates and may vary from actual quantities at time of repairs. These costs can be greatly affected by material costs, fluctuations, labor increases, the bidding environment at the time work is to be performed and inflation. In the current inflationary cycle, increases in cost could be significant. The Engineer’s Opinion of Probable Construction Costs has included a design contingency amount and a construction contingency amount. In a project such as this there will be a certain amount of discovery during the repair project. This discovery could be significant in nature and require additional design and constructions costs. The opinion of cost provides the “total construction” cost and the “total construction cost with burden”. The total construction cost with burden includes mobilization and contractor profit (20%), project design contingency (5%), project construction contingency (15%) and engineering design and CA phase services. SEA strongly recommends that the owner include these contingency amounts. This information is provided to allow the reader to select specific work items to review Jefferson City, MO – Jefferson Street Garage Condition Assessment KU Medical Center – Kansas City KS 26 City of Jefferson, Missouri 26 and analyze. It should be understood that the percentages for the above items could vary depending on the combination of specific work items selected. The items mentioned in this report should be addressed in a timely manner as the deterioration will only worsen with the passage of time. Please note that this report is intended to assist the owner in determining a course of action for repair of this garage. This report is not intended to serve as a set of construction repair or bidding documents. Jefferson City MO - Jefferson St. Garage Condition Assessment Engineers Opinion of Probable Construction Costs Cost Area/Quantity Units Total Value Repair of Deteriorated Concrete Elevated Slabs $65.00 120 s.f.$7,800.00 Repair of Deteriorated Concrete Elevated Slab Soffits $185.00 30 s.f.$5,550.00 Repair of Deteriorated Concrete Columns and Concrete Walls $170.00 20 s.f.$3,400.00 Rout/Seal Cracks and Joints in Concrete Elevated Slabs $9.20 3,200 l.f.$29,440.00 Remove and Replace Joint Sealant for Slab on Grade Level $8.50 1,350 l.f.$11,475.00 Remove and Replace Vehicular Traffic Waterproofing Membrane $4.00 12,000 s.f.$48,000.00 Install New Drain in Elevated Concrete Slab at NW Corner $4,575.00 1 l.s.$4,575.00 Sandblast and Recoat Precast Connections $650.00 10 u.p.$6,500.00 Remove/Repair and Reinstall Precast Wall Panels $5,375.00 10 u.p.$53,750.00 Replace Broken Traffic Barrier Cables $2,650.00 3 u.p.$7,950.00 Remove and Replace Railings $28,750.00 1 l.s.$28,750.00 Re-stripe Garage $3,300.00 1 l.s.$3,300.00 Project Subtotal $210,490.00 Mobilization and Profit (20%)$42,098.00 Project Design Contingency (5%)$12,629.40 Construction Contingency (15%)$25,258.80 Engineering Design and CA Phase Services $51,750.00 Project Total $342,226.20 10-Oct-22 Jefferson City, MO – Jefferson Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX A Custom Engineering’s Report TABLE OF CONTENTS Introduction .............................................................................................................................. 1 Applicable Building Codes and Reference Handbooks ......................................................... 1 Observation of Existing Conditions ....................................................................................... 2 Electrical Systems ................................................................................................................ 2 Mechanical Systems ............................................................................................................ 4 Plumbing Systems ............................................................................................................... 5 Recommendations ................................................................................................................... 6 Electrical Systems ................................................................................................................ 6 Plumbing Systems ............................................................................................................... 6 1 INTRODUCTION The Jefferson Street parking garage in Jefferson City, Missouri is a two-level structure with a parking garage on each level. The Madison parking garage was constructed in early 1991. Custom Engineering, Inc. (CEI) was retained to assess the condition of the mechanical, electrical, and plumbing (MEP) systems for all levels. Refer to photo of Jefferson Street parking garage. In general, the scope of the MEP systems assessment included: · Review of available record documents. · Physical assessment of the existing facility. · Provide a summary of observations and recommended improvements. · Provide an opinion of construction cost for repair and replacement work recommended for completion. Applicable Building Codes and Reference Handbooks 2015 International Building Code 2015 International Mechanical Code 2014 National Electrical Code 2015 International Plumbing Code IESNA 9th Edition Lighting Handbook 2 OBSERVATION OF EXISTING CONDITIONS Electrical Systems There is an existing 60 amp main disconnect switch (120/240V, 1 phase, 3 wire) and existing 100- amp panel (120/240V, 1 phase, 3 wires) located on the wall on the first floor. The existing 60 amp disconnect switch and existing 100-amp panel are in good condition. Refer to photo below for the existing 60 amp disconnect switch and existing panel (100 amp, 120/240V, 1 phase, 3 wire). Most of the existing conduits for the parking garage light fixtures on the first floor are in good condition. Refer to photo below for existing conduit for the parking garage light fixtures. 3 Roof level Site light poles with twin LED luminaires are located on the roof level to illuminate all the parking spaces located on the roof at dark. All site lights located on the roof level are in good condition. Refer to photo below for the site light poles located on the roof level. Stairwells Areas There are no light fixtures for the stairwell between the first level and roof level because the stairwell is located outside. See photo of the stairwell located between the first level and roof level. Security Cameras and access control There are no security cameras located inside the first floor or on the site light poles located on the roof level. There are no access control devices (Gates, card readers) in the parking garage building. 4 Parking Garage area Most of the conduits for the parking garage light fixtures are in good condition. All the parking garage light fixtures in the first floor are LED light fixtures. The existing electrical panel and existing disconnect switch located in the first floor are in good condition. See photos below of the parking garage LED light fixtures and electrical panel. Mechanical Systems This parking structure does not have any heating, ventilating, or air-conditioning systems. 5 Plumbing Systems This parking structure does not have any domestic water, sanitary sewer, or natural gas services. The aboveground elements of the storm drainage system are limited to six upper-level area drains and their conductors. Each of these conductors is offset using two 1/8 elbows and a diagonal pipe. 6 RECOMMENDATIONS Electrical Systems Lighting The use of photocell to control all the light fixtures located at the opening in the parking garage level is recommended during the day, in that way, the light fixture will not come on and it only comes on when it is dark or cloudy. For the new LED light fixtures inside the parking garage, it is recommended to have an occupancy sensor in each light fixture. By using an occupancy sensor in each light fixture, the light fixture can stay at 50% most of the time and will only go to 100% if there is a car or a person by the light fixture. This will result in saving energy in the lighting load for the parking garage. Table 1. Lighting Level Readings from Site Visit and IES Recommended Maintained Illuminance Values LABEL UNITS AVG LIGHTING LEVEL FROM SITE VISIT AVG IES RECOMMENDED MAINTAINED ILLUMINANCE VALUE PARKING GARAGE AREA FC 8.2 5.0 Surveillance Surveillance cameras should be installed in the first level and on the site light poles on the roof level. Plumbing Systems Replace the six Upper-Level area drains and their offset piping including two 1/8 elbows and a diagonal pipe. The lower vertical conductor piping shall remain for reuse. MATERIAL LABOR EQUIPMENT TOTAL MATERIAL LABOR EQUIPMENT TOTAL 220505 10 0764 Demolition, Drain Ea 6 93.00$ -$ 506.11$ -$ -$ 506.11$ 220505 10 2100 Demolition, metal piping, 4" to 6"LF 60 10.30$ -$ 560.53$ -$ -$ 560.53$ 260505 20 5740 Demolition, conduit and wires LF 320 7.05$ -$ 1,791.26$ -$ -$ 1,791.26$ 260505 50 4060 Demolition, Garage light fixtures Ea 13 59.00$ -$ 609.00$ -$ -$ 609.00$ TOTALS Facility 1 3,466.89$ 3,466.89$ 3,466.89$ CATEGORY TOTAL DEMO DEMOLITION COSTS ITEM TOTAL SYSTEM TOTAL ADJUSTED WITH INDEXESBARE COST (USE TOTAL EXCLUSIVELY)FM ID (LEAD WITH ')LINE DESCRIPTION UNIT QTY MATERIAL LABOR EQUIPMENT TOTAL MATERIAL LABOR EQUIPMENT TOTAL 221319 13 2320 Floor Drain, extra-heavy duty, CI, 15" grate, 6" connection EA 1 1,950.00$ 126.00$ 1,963.65$ 114.28$ -$ -$ 2,077.93$ 221319 13 2360 Galvanized adder for above EA 1 870.00$ 876.09$ -$ -$ -$ 876.09$ 221316 20 2200 Cast Iron Piping, DWV, Schd 40, 6"LF 10 49.50$ 21.50$ 498.47$ 195.01$ -$ -$ 693.47$ 221316 30 0400 Cast Iron 1/8 Elbows, DWV, Schd 40, 6"Ea 2 74.50$ 92.00$ 150.04$ 166.89$ -$ -$ 316.93$ -$ -$ -$ -$ -$ TOTALS Drains 6 3,964.42$ 23,786.54$ 23,786.54$ STORM DRAINAGE CATEGORY TOTAL STORM DRAINAGE COSTS ITEM TOTAL SYSTEM TOTAL BARE COST (USE TOTAL EXCLUSIVELY)ADJUSTED WITH INDEXESFM ID (LEAD WITH ')LINE DESCRIPTION UNIT QTY MATERIAL LABOR EQUIPMENT TOTAL MATERIAL LABOR EQUIPMENT TOTAL 265113 55 6000 New Garage led lights EA 13 1,000.00$ 116.00$ 13,208.00$ 1,197.35$ -$ -$ 14,405.35$ 260533 13 0220 New conduit and wires LF 320 1.90$ 7.50$ 617.73$ 1,905.60$ -$ -$ 2,523.33$ TOTALS Facility 1 16,928.68$ 16,928.68$ 16,928.68$ CATEGORY TOTAL LIGHTING ELECTRICAL COSTS FM ID (LEAD WITH ')LINE DESCRIPTION UNIT QTY BARE COST (USE TOTAL EXCLUSIVELY)ADJUSTED WITH INDEXES ITEM TOTAL SYSTEM TOTAL CONTENGENCIES OVERHEAD PROFIT 30% 20% 15% DEMOLITION 3,466.89$ 1,040.07$ 693.38$ 520.03$ 5,720.38$ STORM 23,786.54$ 7,135.96$ 4,757.31$ 3,567.98$ 39,247.79$ ELECTRICAL 16,928.68$ 5,078.60$ 3,385.74$ 2,539.30$ 27,932.32$ 72,900.48$ CATEGORY INDEXED COST TOTAL GRAND TOTAL BASED ON 2022 RS MEANS COST SUMMARY Jefferson City, MO – Jefferson Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX B Chloride-Ion Test Results NCORPORATED 2810 Clark Avenue * St. Louis, MO 631 03-2574 a (31 4) 531 -8080 a FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 4 570 Kansas City, MO 64106 Attention: Philip Steed March 8, 2022 WO# E-01 87784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 4 of 4 REPORT OF ANALYSIS SAMPLE ID: 46 Concrete Samples, Received 03/01/2022 Project# 2021077, Jefferson City Parking Garages UNITS: mg/kg (ppm) RESULTS: SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS JP1, %"-1"1770 50 03/02/2022 JPI, 1"-2"547 50 03/02/2022 JT1, %"-1"779 50 03/02/2022 JT1 , 1 "-2"460 50 03/02/2022 JT1 , 2"-3"365 50 03/02/2022 5WP, %"-1"1410 50 03/02/2022 5WP, 1"-2"573 50 03/02/2022 5WP, 2"-3"149 50 03/02/2022 5WT, %"-1"1600 50 03/02/2022 5\/VT, 1"-2"166 50 03/02/2022 5\/VT, 2"-3"50 50 03/02/2022 4CP, %"-1"1230 50 03/02/2022 Test Method: AASHTO T-260, Method A (ton Selective Electrode) MRL: Minimum Reporting Limit AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST NOT OFFICIAL WITHOUT THE RAISED SEAL OF ST. LOUIS TESTING LABORATORIES INC SEE REVERSE FOR CONDITIONS. N C () R P O R A T E D ' 2810 Clark Avenue a St. Louis, MO 631 03-2574 a (31 4) 531 -8080 a FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 4 570 Kansas City, MO 64106 Attention: Philip Steed March 8, 2022 WO# E-0187784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 2 of 4 REPORT OF ANALYSIS SAMPLE 10: 46 Concrete Samples, Received 03/01/2022 Project# 2021077, Jefferson City Parking Garages UNITS: mg/kg (ppm) RESULTS: SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS 4CP, 1"-2"83 50 03/02/2022 4CP, 2"-3"98 50 03/02/2022 4CT, %"-1 "150 50 03/02/2022 4CT, 1"-2"<50 50 03/02/2022 4WP, %"-1 "2180 50 03/02/2022 4WP, 1"-2"1000 50 03/02/2022 4WP, 2"-3"99 50 03/02/2022 4l/\/T, %"-1"1680 50 03/02/2022 4WT, 1"-2"522 50 03/02/2022 4\/VT, 2"-3"65 50 03/02/2022 3CP, %"-1"1790 50 03/02/2022 3CP, 1"-2"146 50 03/03/2022 Test Method: AASHTO T-260, Method A (Ion Selective Electrode) MRL: Minimum Reporting Limit AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST. NOT OFFICIAL WITHOUT THE RAISED SEAL OF ST. LOUIS TESTING LABORATORIES. INC SEE REVERSE FOR CONDITIONS. N c () R P O R A T E D 281 0 Clark Avenue a St. Louis, MO 631 03-2574 - (31 4) 531 -8080 o FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 1570 Kansas City, MO 64106 March 8, 2022 WO# E-0187784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 3 of 4 Attention: Philip Steed REPORT OF ANALYSIS SAMPLE ID: 46 Concrete Samples, Received 03/OU2022 Project# 2021077, Jefferson City Parking Garages UNITS: RESULTS: mg/kg (ppm) SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS 3CP, 2"-3"<50 50 03/03/2022 3CT, %"'I"3040 50 03/03/2022 3CT, 1 "-2"249 50 03/03/2022 3CT, 2"-3"50 50 03/03/2022 3WP, '/l"-1"4790 50 03/03/2022 3\/VP, 1"-2"1550 50 03/03/2022 3WP, 2"-3"50 50 03/03/2022 3WT, %"-t"2480 50 03/03/2022 3\/VT, 1"-2"2210 50 03/03/2022 3WT, 2"-3"342 50 03/03/2022 2CP, %"-1"645 50 03/03/2022 2CP, 1"-2"82 50 03/03/2022 Test Method: AASHTO T-260, Method A (Ion Selective Electrode) MRL: Minirrium Reporting Limit AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST. NOT OFFICIAL WITHOUT THE RAISED SEAL OF ST LOUIS TESTING LABORATORIES INC SEE REVERSE FOR CONDITIONS. N C @ R P O R A T E D 2810 Clark Avenue * St. Louis, MO 631 03-2574 a (31 4) 531 -8080 * FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 1570 Kansas City, MO 64106 Attention: Philip Steed March 8, 2022 WO# E-0187784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 4 of 4 REPORT OF ANALYSIS SAMPLE ID: 46 Concrete Samples, Received 03/01/2022 Project# 2021077, Jefferson City Parking Garages UNITS: mg/kg (ppm) RESULTS: SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS 2CP, 2"-2%"<50 50 03/04/2022 2CT, %"-1"1470 50 03/04/2022 2CT, 1 "-2"312 50 03/04/2022 2CT, 2"-3"66 50 03/04/2022 2WP, %"-1"4050 50 03/04/2022 2WP, 1"-2"1740 50 03/04/2022 2WP, 2"-3"116 50 03/04/2022 2WT, %"-1"1930 50 03/04/2022 2\/\/T, 1"-2"920 50 03/04/2022 21/\/T, 2"-3"99 50 03/04/2022 Test Method: AASHTO T-260, Method A (Ion Selective Electrode) MRL: Minimum Reporting Limit KK/vk Kimberly Kostelac, Manager Environmental Testing AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST NOT OFFICIAL WITHOUT THE RAISE[) SEAL OF ST. LOUIS TESTING LABORATORIES, INC. SEE REVERSE FOR CONDITIONS Madison Street Garage Condition Assessment Prepared for: City of Jefferson, Missouri October 10, 2022 Prepared by: Structural Engineering Associates, Inc. CONDITION ASSESSMENT Madison Street Garage Jefferson City, Missouri October 10, 2022 1000 Walnut, Suite 1570 Kansas City, Missouri 64106 Phone: 816/421-1042 Fax: 816/421-1061 Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson, Missouri TABLE OF CONTENTS Executive Summary ............................................................................................ 1 Introduction ......................................................................................................... 3 General Garage Description ................................................................................ 5 Observations and Findings ................................................................................ 10 Discussion ......................................................................................................... 23 Conclusions and Recommendations ................................................................. 28 Engineer’s Opinion of Probable Construction Cost ........................................... 35 Additional Considerations .................................................................................. 37 Appendixes • Appendix A – BNIM Architects Report • Appendix B – Custom Engineering’s Report • Appendix C – Parking Whisperer’s Report • Appendix D – Schindler Elevator General Inspection • Appendix E – Schematic Drawing • Appendix F – Chloride-Ion Test Results Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 1 City of Jefferson, Missouri 1 EXECUTIVE SUMMARY Structural Engineering Associates, Inc. (SEA) was commissioned by the City of Jefferson, Missouri, to perform a condition assessment of the Madison Street garage also known as the Municipal Parking Garage. The garage is located at the corner of Madison Street and East Capitol Avenue. The garage consists of two separate structures which act together to provide parking as one garage. For purposes of identification, the two structures are identified as the west structure and the east structure in this report. The two structures, vertical additions and renovations were constructed at different time periods. A further discussion of the construction time periods and the differences in the two structures is provided in the “General Garage Description” section of this report. The field investigations and testing team for this condition study consisted of SEA engineering and technical staff as well as members from consultants to provide observations and recommendation for many elements of the garage. The consultants that contributed to this report are as follows. Architectural – BNIM Architects: General code review, ADA access, parking control office upgrades. Mechanical, Electrical, Plumbing – Custom Engineering: Review of conditions of existing MEP equipment. Code requirements for MEP equipment. Parking Revenue and Control – The Parking Whisperer: Review of existing parking revenue equipment and processes. Civil Engineering – CFS Engineers: Civil engineering and project consultation. Elevator Inspection – Schindler Elevator. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 2 City of Jefferson, Missouri 2 Numerous items requiring attention were identified in the condition assessment. These include structural issues, life safety code issues, equipment and power issues and concerns of obsolete parking and revenue control systems. These are discussed in more detail in the “Recommendations” section of this report and in the reports provided by each consultant. The reader is encouraged to read each consultant’s report in their entirety to gain an understanding of the observations and recommendations of each consultant. SEA’s Engineer’s Opinion of Probable Construction Costs for these repairs is approximately $12,160,000. Please refer to the “Cost Estimate” section of this report for a breakdown of the costs. This Opinion of Cost includes contractor’s overhead and profit, as well as projected mobilization costs, together with Engineering design and Construction Administration (CA) phase services. A design contingency 5% and a construction contingency of 15% has also been included to address design changes as the project moves forward and changes in construction as unforeseen conditions are encountered during construction. Investigation of the garage for hazardous materials was beyond the scope of this project. If the project proceeds to repair documents, the owner should employ the services of an environmental firm to perform a study to address these issues. This report has been prepared to enable the owner to consider the observed conditions described within the report and recommended repairs. This report is intended for the clients use and is to be used at their sole discretion and risk. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 3 City of Jefferson, Missouri 3 INTRODUCTION Structural Engineering Associates, Inc. (SEA) was commissioned by the City of Jefferson to prepare this condition study of the Madison Street Garage Structure in Jefferson City, MO, also referred to as the Municipal Parking Garage. SEA employed the services of BNIM Architects to provide as assessment of the garage considering limited code considerations and ADA access. Their report is included in Appendix A. Custom Engineering was employed to perform an assessment of mechanical, electrical and plumbing systems. Their report is included in Appendix B. The Parking Whisperer provided review and recommendations for the parking control and revenue control aspects of the garage operations. Their report is included in Appendix C. Schindler Elevator performed a general inspection of the elevator. Their report is included in Appendix D. SEA has included a summary of our consultant’s findings. The reader is encouraged to review each consultant’s reports in their entirety. CFS provided general civil engineering consultation. From our visual assessment and field survey results, a repair strategy can be developed in the near term to extend the anticipated life cycle and serviceability of this facility. This study will address the present conditions of the garage, observations, findings, our recommendations for repairs, and an Engineer’s Opinion of Probable Construction Costs. SEA greatly appreciates the assistance of the City of Jefferson staff during the investigations. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 4 City of Jefferson, Missouri 4 Calculations were not performed to determine the structural adequacy of the garage as designed or constructed. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 5 City of Jefferson, Missouri 5 GENERAL GARAGE DESCRIPTION The garage is located at the corner of Madison Street and East Capitol Avenue. Although Jefferson City’s streets do not align with the cardinal directions, for the purposes of this report Madison Street is considered to run North-South, and East Capitol Avenue East-West (Satellite Image). The garage consists of two separate but contiguous structures. Structural Drawings were provided for both structures including vertical additions to each structure. Drawings were dated as follows. Drawings for the west (original) structure were dated 1961. The garage was initially constructed for three parking levels, one at or slightly below grade and two elevated levels. A fourth level and elevator addition is shown on drawings dated 1974. In 1982 drawings were issued for the first elevated level on the east portion of the garage. Drawings dated 1990 show a fifth level getting added to the east portion. Substantial repairs for the existing garage were also shown on the drawings, as well as reconfiguration of the office area. Drawings from 1998 and 1999 have the Sprint PCS telecom equipment and entry/signage improvements, respectively. It is assumed that construction for each project occurred during or shortly after those dates. Satellite Image The west structure has approximately 413 parking stalls and the east structure has approximately 202 stalls. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 6 City of Jefferson, Missouri 6 The west structure is a steel frame structure with concrete floor slabs. The vertical additions are also constructed of structural steel framing with concrete floor slabs. In some locations the floor slabs consist of cast-in-place concrete, at others the slabs consist of cast-in-place concrete on metal deck. Currently the west structure has four framed floors and one below grade slab-on- grade elevation. The framing system for the east structure consists of three floors of post tensioned cast-in-place framing with one level of slab-on-grade. The columns are structural steel. Vertical vehicular circulation consists of relatively tight ramps in the west steel framed structure. These ramps have a hydronic snow melt system which is reportedly still functioning (Photos 1 and 2). Photo 1 – Vehicular Ramps Photo 2 – Vehicular Ramps Access to the east structure is attained via the west structure at the first, third, and fourth levels. It is also accessible at grade on the lowest level from East Capitol Avenue. The second level is accessed at grade via Commercial Avenue on the south. Pedestrian vertical circulation consists of one elevator on the west face of the garage with four stairs located in the corners of the original west structure (Photos 3, 4 and 5). Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 7 City of Jefferson, Missouri 7 Photo 3 – Elevator Photo 4 - Fifth Level Stair Access Photo 5 - Fifth Level Elevator Access A city parking administration/control office is present near the entrance at the southwest corner of the garage. Public restrooms and vending machines are present adjacent to the parking control office (Photo 6). Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 8 City of Jefferson, Missouri 8 Photo 6 – Parking Control Offices Equipment is stored on the lowest level of the garage along the south wall near the southeast corner of the garage (Photo 7). Photo 7 – Equipment Storage Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 9 City of Jefferson, Missouri 9 The exterior façade of the garage consists of two types. The west structure façade consists of precast concrete panels connected to and supported by the main steel framing. The east structure façade consists of cast-in-lace parapet walls cantilevered from the post-tensioned cast- in-place slabs (Photos 8, 9 and 10). Photo 8 – West Structure Façade Photo 9 – West Façade Detail Photo 10 - East Structure Facade Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 10 City of Jefferson, Missouri 10 OBSERVATIONS AND FINDINGS General SEA conducted a visual survey of the structural framing of the garage to attempt to identify locations of deterioration within the garage. Typical types of deterioration include visible corrosion in steel framing members, cracks in the concrete framing members and corrosion delaminations in the concrete soffits, slabs and walls. Visual observations were performed on the soffits, floor slabs, slab soffits, walls, stairways, and the garage exterior. The survey also included chain-dragging and sounding of the top surfaces of the concrete elevated decks. Chain dragging was performed to sound for delaminations resulting from expansion of corroded reinforcing steel in the slab. Chain dragging is a method in which metal chains are dragged across the concrete surface. In doing so, the chains resonate a sound over hollow areas, giving a distinct change in sound thus locating areas of delamination. Chain dragging followed procedures described in ASTM D4580-12 (Photo 11). Photo 11 – Sample of Chain Dragging Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 11 City of Jefferson, Missouri 11 Areas of visible and/or audible delaminations were identified and marked with spray paint. West Structure The west main structure of the garage is constructed of structural steel framing with either cast- in-place concrete slabs, or cast-in-place concrete on composite metal deck. The structural steel frames consist of structural steel columns, beams, and girders. Cast-in-place concrete slabs are reinforced to allow the concrete slabs to span between the structural steel beams on their own. Cast-in-place concrete on composite deck also has reinforcing cast in the concrete slabs but relies on the metal deck to act compositely with the concrete to provide the strength for the slab portion of the floor framing. In other words, the metal deck acts as the primary reinforcing for the concrete. This becomes an important consideration in the assessment of this garage (Photos 12 and 13). Photo 12 – Cast-in-Place Concrete Slab Photo 13 – Cast-in-Place Concrete on Composite Metal Deck The west structure was visually observed and was chain dragged in accordance with ASTM D4580-12. Areas of visually evident deterioration and areas identified as delaminations were documented. Areas of delamination were identified on the driving surface and the soffits of the structural slabs. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 12 City of Jefferson, Missouri 12 Areas of advanced corrosion of composite metal deck were visually observed at several locations. In many locations the corrosion had progressed to the point where the composite metal deck was perforated. As stated earlier, the metal deck is part of the structural capacity of the slabs. Where the metal deck has severe corrosion damage, the load carrying capacity of the slabs is reduced. Localized deterioration for on area of composite deck affects the capacity of the whole span, from beam to beam. At these locations the most effective repair is to remove the areas of slab where the deterioration has occurred and replace it with new reinforced concrete slab, from beam to beam. This occurs throughout the garage but is most prevalent on the top floor (Photos 14 and 15). Photo 14 – Corroded Composite Metal Deck Photo 15 – Corroded Metal Deck Areas of advanced corrosion of the metal deck were quantified. The estimated areas of removal and replacement are identified in the table below (Table 1). Table 1 Slab Removal & Replacement Estimate Floor Area S. F. C & D 10,600 S. F. E & F 8,825 S. F. G & H 12,400 S. F. I & J 19,550 S. F. Total 51,375 S. F. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 13 City of Jefferson, Missouri 13 A schematic drawing identifying the areas of proposed removal and replacement on the second floor is included in Appendix E. This is the level for the main entrance on Madison. The reader should note that this is the condition of the second floor only. It does not represent every floor equally. It is provided as a visual aid to understand the extent of repair needed. The table above indicates the estimated quantities of areas for each floor. The structural steel framing was also observed for areas of advanced corrosion. As constructed, there are control joints in the cast-in-place concrete slabs and the cast-in-place concrete slabs on composite metal deck. The joints occur along and directly above the steel beams. This becomes problematic in that moisture can migrate through these joints directly to the steel beams below. Moisture, laden with de-icing chemicals, is then allowed to sit on the beams, promoting corrosion of the steel framing. Evidence of this is visible throughout the west structure. At areas where the corrosion is more advanced, repairs will require removal of the concrete slabs, or concrete on composite metal deck to get access to the tops of the beams for repair or replacement (16, 17 and 18). Photo 16 – Corroded Top Beam Flange Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 14 City of Jefferson, Missouri 14 Photo 17 – Corroded Top Beam Flange Photo 18 – Severely Deteriorated Beam Areas of visible corrosion on the beams and columns were documented and quantities have been estimated (Photo 19). Photo 19 – Corroded Steel Column Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 15 City of Jefferson, Missouri 15 The two stairs on the west face of the garage have extensive damage and deterioration resulting from corrosion of reinforcing steel and post sleeves. This deterioration consists of corrosion of reinforcing steel leading to extensive delaminations in the concrete and deterioration of handrail/guardrail posts leading to deterioration of the posts as well as deterioration to the concrete. The deterioration to the northwest stair is so extensive that it has been closed. The deterioration to the southwest stair is also extensive and will need to be closed in the near future (Photos 20, 21, and 22). Photo 21 – Deteriorated Concrete Stair Photo 22 – Deteriorated Concrete Stair There are stairs within the garage that provide access between the two half levels in the west structure. Deterioration of these is extensive and has led to closure of some of the stairs (Photo 23). Photo 20 – Deteriorated Concrete Stair Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 16 City of Jefferson, Missouri 16 Photo 23 – Deteriorated Interior Stair Closure of a stair is typically a code violation because it does not provide enough emergency egress. Deterioration of many of the stair handrails is advanced. In addition, most handrails do not meet current code provisions (Photos 24 and 25). Photo 24 – Deteriorated Handrail Photo 25 – Deteriorated Handrail Note Corroded Post Note Corroded Posts and Missing Rail Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 17 City of Jefferson, Missouri 17 Expansion joints between the west structure and the east structure have failed allowing moisture to travel through the joint to levels below. East Structure The east structure is a post-tensioned cast-in-place pan joist floor framing system with structural steel columns. The joists, beams and slabs are reinforced with unbonded post-tensioning cables. Unbonded post tensioning cables are cast in the concrete beams and pan joist stems typically in a parabolic draped pattern. After the concrete has achieved a minimum compressive strength, the cables are tensioned. The tensioning process places the concrete in compression and the parabolic drape serves to “lift” the beams and joists thereby reducing deflection. Post tensioning in the beams and joists allows for longer clear spans without increasing structure depth. The framing is somewhat unique in that the columns are constructed of structural steel whereas the floor framing system is constructed of concrete. The slabs also have large cantilevers at the north and south ends. Drains are cast into the post tensioned girders which is also unusual. While unusual, none of these features in and of themselves creates an unsafe condition (Photo 26). Photo 26 – Post Tensioned Pan Joist System The east structure was visually observed and was chain dragged in accordance with ASTM D4580-12. Areas of visually evident deterioration and areas identified as delaminations were Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 18 City of Jefferson, Missouri 18 identified and documented. Areas of delamination were identified on the driving surface and soffits. The east structure, which is newer, shows fewer signs of deterioration than the west steel framed structure. Vertical vehicular and pedestrian access in the east structure is dependent on vehicular ramps, stairs and the elevator in the west steel framed structure. There is no means of vertical access in the east structure. There are numerous areas of drying shrinkage cracking throughout the garage. These were repaired in the 1990 renovation by routing and caulking. Since that time, the caulk has degraded allowing the cracks to accept moisture and leak again (Photo 27). Photo 27 – Leaking Crack through Slab Detailed forensic investigation of the post tensioning cables was not included in this scope of work. There were no visible signs of post tension cable failure except as noted below. If the project is to continue to preparation of repair documents, it is recommended to have the cables tested for humidity levels for possible drying and re-greasing. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 19 City of Jefferson, Missouri 19 At one location in the east structure on the fourth framed level (looking up from the third floor), there is an area where one post-tensioned pan joist stem is fractured on the bottom of the stem. Based on appearance, the fracture is consistent with impact from an over-height vehicle. Based on visual observation it is obvious that the exposed post tensioning cables are no longer in tension. This is evidenced by the gap between the cable sheathing and the smooth surface of the concrete where the cable used to be located (Photo 28). Based on visual assessment of the second-floor framed slab, there was only approximately ten square feet of overhead repair. Estimates of overhead delaminations for the other floors were extrapolated from the second-floor survey. Exterior Façade The west structure and the east structure have two different façade systems. The west structure has a façade of precast concrete panels anchored to the steel frame. The east structure consists of cast-in-place concrete barrier walls. The appearance between the two is drastically different creating a non-uniform appearance. Both the east and west structures will require some repairs on their facades. The east structure should be painted. Forensics Testing Forensics testing of chloride-ion contamination was conducted in accordance with AASHTO T- 260 on both elevated levels. SEA obtained concrete samples for testing of chloride ion content contamination on elevated levels of the garage for a total of 14 different locations and 41 samples. The depths were from ¼” to 1”, 1” to 2”, and 2” to 3”. In some locations only two depths were tested. The results of the chloride-ions contamination testing (in parts per million, ppm) of the Photo 28 – Fractured Joist Exposing Damaged PT Cables Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 20 City of Jefferson, Missouri 20 slabs can be seen in Tables 2 and 3 and Charts 1 and 2. A copy of the test results is included in Appendix F. The charts show each chloride sample plotted by chloride content vs. depth in the concrete slab. The depth of reinforcing steel was based on review of the original construction drawings provided by the client. Where data points or lines are both to the right of the c orrosion threshold and below the depth of slab reinforcement, there is the potential for corrosion. Table 2 and Chart 1 depict the chloride ion results for the west portion of the garage. Two locations for each elevated level were tested: one in a driving lane and one in a parking stall. With the various construction dates for the levels and the changes in slab design, the results and the meaning of the results are not consistent. With some slabs constructed as a structural cast in place slab and some as composite slab with metal deck, the depth of the effective reinforcing steel varies depending on location in the garage. Additionally, the west portion of the garage has joints in the concrete slab which allow moisture direct access to the structural steel beams and to any composite deck that may exist below a slab. It is assumed that reinforcing steel is typically located at 1 ½” below the top of the slab for the garage. Most of the slabs, as shown on the original construction drawings are 4 ½” or 5” thick, and if conventionally reinforced would have two layers of reinforcing. The results show that for most sample locations, the chloride-ion content at the depth where reinforcing is typically located, has reached a corrosion threshold level (Above 300/500 ppm). Depth of Sample Sample ID 1/4" - 1" 1" - 2" 2" - 3" Location 2WT 1930 920 99 2nd Level, Traffic Lane 2WP 4050 1740 116 2nd Level, Parking Stall 3WT 2480 2210 342 3rd Level, Traffic Lane 3WP 4790 1550 50 3rd Level, Parking Stall 4WT 1680 522 65 4th Level, Traffic Lane 4WP 2180 1000 99 4th Level, Parking Stall 5WT 1600 166 50 5th Level, Traffic Lane 5WP 1410 573 149 5th Level, Parking Stall Table 2 – Chloride Testing Results, West Structure Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 21 City of Jefferson, Missouri 21 Table 3 and Chart 2 depict the chloride ion results for the east portion of the garage. Here also, two locations for each elevated level were tested: one in a driving lane and one in a parking stall. Similar to the west side, the east has two dates of construction. The second level (1982) and the third and fourth levels (1990) have different designs for the slab reinforcement, however both constructions use a 4” thick slab. The depth of reinforcement is not given in the original construction drawings, but here it is assumed to be at a depth of 1 ½” below the top of the slab. High readings are present near the top of the slab in nearly all cases, and where reinforcing is likely located, the readings are near the corrosion threshold in the steel. 0 1 2 3 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000Depth of Sample (in)Chloride Concentration (ppm) Chloride Ion Content: Depth 0 -3" 2WT 2WP 3WT 3WP 4WT 4WP 5WT 5WP Top of Slab Area of Potential Corrosion Sample ID Corrosion Threshold Zone 300 -500 ppm Depth of Slab Reinforcement Chart 1 – Chloride Concentrations, West Structure Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 22 City of Jefferson, Missouri 22 Depth of Sample Sample ID 1/4" - 1" 1" - 2" 2" - 3" Location 2CT 1470 312 66 2nd Level, Traffic Lane 2CP 645 82 <50 2nd Level, Parking Stall 3CT 3040 249 50 3rd Level, Traffic Lane 3CP 1790 146 <50 3rd Level, Parking Stall 4CT* 150 <50 4th Level, Traffic Lane 4CP 1230 83 98 4th Level, Parking Stall *Only two depths sampled Table 3 – Chloride Testing Results, East Structure Chart 2 – Chloride Concentrations, East Structure 2CT2CP 3CT3CP4CT4CP 0 1 2 3 0 500 1000 1500 2000 2500 3000 3500Depth of Sample (in)Chloride Concentration (ppm) Chloride Ion Content: Depth 0 -3" 2CT 2CP 3CT 3CP 4CT 4CP Top of Slab Area of Potential Corrosion Sample ID Corrosion Threshold Zone 300 -500 ppm Depth of Slab Reinforcement Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 23 City of Jefferson, Missouri 23 DISCUSSION The Madison Street “Municipal Garage” is subject to deterioration of concrete elements due to corrosion of reinforcing steel, embedded metals, structural steel, and post-tension tendons. The following briefly describes these various deterioration mechanisms. Delamination/Spall A delamination is a concrete fracture resulting from reinforcement corrosion. Corrosion products build up on the surface of reinforcement producing large tensile forces in the concrete. As steel corrodes, it expands in a laminar fashion in the form of rust pack. This expansion can occupy up to 10 times the volume of the original metal. In doing so it applies pressure against the concrete toward the surface. When the concrete can no longer resist these stresses, it cracks, forming a delamination. As corrosion continues, the crack usually progresses to the concrete surface forming a de-bonded, loose piece of concrete known as a spall. The result of reinforcement corrosion and concrete delamination is a loss of the reinforcement/concrete bond and reinforcement cross-sectional area. This damage diminishes structural load capacity. Corrosion Corrosion is an electrochemical process that deteriorates metals. Typically, reinforcement embedded in concrete is protected by a thin oxide film on the surface of the metal resulting from the concrete’s naturally high alkalinity. However, aggressive ions can penetrate the concrete and break down the oxide film. These ions, typically chloride ions from de-icing salts, are carried into the garage by vehicles from salt-treated streets or applied directly to the concrete. They can also be in the original concrete in the form of chloride-bearing concrete admixtures. Corrosion can also be initiated if the concrete alkalinity is reduced. One way of reducing the concrete’s alkalinity is through the process known as carbonation. Carbonation results when carbon dioxide or other acidic gas pollutants from the atmosphere combine with water in the concrete to form non-alkaline carbonates. Corrosion will occur when carbonation reaches the depth of the reinforcement. A combination of carbonation and chloride contamination is particularly aggressive. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 24 City of Jefferson, Missouri 24 The corrosion process results from the formation of a corrosion “cell” that is an electrical circuit composed of an anode, a cathode, electrolyte (concrete in our case) and a metallic path from the anode to the cathode (the reinforcing bar itself). Similar to an ordinary battery, current flows from the anode through the electrolyte onto the cathode and completes the circuit through the metallic path to the anode. Metal loss occurs at the anode where current is discharged. Chloride Ion Testing Levels The primary cause of corrosion in garages are generally caused by chloride ions from de-icing salts. This will typically result in elevated chloride ion testing levels for the concrete samples taken. The threshold of chloride concentration that will initiate corrosion is still a debated subject in the scientific community. The wide variety of possible concrete mix designs and environmental factors facing each individual structure contribute to lack of consensus on this matter. Chloride concentrations of 300 to 500 ppm (mg/kg) are generally considered high enough to initiate and promote corrosion of unprotected steel. In the case of contamination from application of de-icing chemicals, the chloride ion contents in the samples are highest near the top of the slab. This could come in the form of application of de-icing salts to the deck itself, or de-icing salts dropping from the cars parked inside the garage. As these chloride ion levels increase, acceleration of corrosion will occur to the reinforcing steel due to a corrosion cell that is becoming increasingly active. Efflorescence Efflorescence is a white deposit on concrete and masonry surfaces. Moisture leaches water - soluble chemicals from the concrete to the concrete surface where the moisture evaporates leaving the dried chemicals. If a large volume of moisture emanates from one point, a “stalactite” of chemical forms, typically on a slab ceiling. Efflorescence indicates through-slab cracks that allow moisture and chloride to penetrate to joist, beam, and bottom slab reinforcement. Water-soluble chemicals can also damage vehicle finishes. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 25 City of Jefferson, Missouri 25 Waterproofing Membrane Waterproofing Membranes protect the slabs and reinforcing steel from moisture and greatly reduce the chances of corrosion. Waterproofing membranes can also protect joint sealants allowing them to last up to ten years. However, if the waterproofing membrane gets scraped or becomes debonded from the slab, moisture can penetrate through to the slab. It is important to repair any deficient areas of waterproofing membrane, as well as maintain it. Depending on wear, a typical urethane waterproofing membrane should have the top and intermediate coats replaced or overcoated every five years to keep the membrane performing at optimum levels. Epoxy based and coal tar epoxy systems can provide a longer anticipated life cycle. Post Tension Cable Evaluation The Post-Tech Corrosion Evaluation, a proprietary technology of Vector Corrosion Technologies, method of testing requires direct access to the post-tensioning tendons by means of drilled holes in the concrete to permit sampling of the cable environment. The moisture level of the air within the tendon sheaths is evaluated by vacuum pumping the existing air from within the sheaths and measuring temperature, relative humidity and dew point. These initial measurements reflect the potential for corrosion at the time of measurement. In addition to reflecting the potential for corrosion, the “Initial” measurements for moisture content are generally indicative of the corrosion deterioration of the tendon. There is often a close relationship between “Initial” moisture condition (“Wet” or “Dry”) and the degree of tendon corrosion. Please note however, the degree of corrosion damage at high-risk tendons is affected by many variables such as the age of structure, quantity/quality of grease aroun d the tendons, quality of steel, and exposure to temperature fluctuations. Also, it may be possible for tendons to have dried out over time in some fully enclosed and protected structures. In this case, “Dry” tendons do not always indicate the absence of corrosion. (“Dry” tendons will, however, be an indication of the absence of active corrosion) Each structure where testing is carried out should be viewed as unique. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 26 City of Jefferson, Missouri 26 Post Tension Cable Repair If post tension cables have failed in the garage, they will require splicing and re-tensioning or partial or full replacement. This is accomplished by locating the failure point with ground penetrating radar and removing a full depth area of concrete in this location. A splicing device is installed to connect the cables together at this location. Since cables do not always fail at the locations of concrete delaminations or fractures, a second full depth area will be completed in these areas and a “Dog Bone”, device and possibly splicing device will be installed. The contractor will apply tension to both the spliced cable and the remaining section of good cable using the dog bone to create a complete repair (Figures 1 & 2). Figure 1 Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 27 City of Jefferson, Missouri 27 Figure 2 Sealant Joints Sealant observed at most locations in the garage is deteriorating and splitting. When sealant begins to revert, it loses its ability to conform to the changing dimensions of the joint. Some sealant is reverting and becoming nonresponsive to expansion/contraction or other movement within the structure. Joint sealant should be replaced every five years to seven years. With a waterproofing membrane covering the joint sealant from exposure to UV rays, joint sealant can last up to ten years. In the case of the Madison Street garage, joints are located directly above structural steel framing members. As chloride laden moisture has migrated through the joints it has come in contact with the structural steel which has led to ongoing corrosion of the steel framing members. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 28 City of Jefferson, Missouri 28 CONCLUSIONS AND RECOMMENDATIONS Structural Framing West Structure The west structure is considered the primary structure since it has the greatest parking area and provides vehicular and pedestrian vertical access. In the west structure the level of deterioration is significant and will require extensive repairs. The most significant is removal of rather large percentages of concrete slab and concrete slab on metal deck both to remove the deteriorated metal deck and to get access to the top flange of the structural steel beams for repair. The quantities of areas of slab removal are significant on each level with the highest area of removal and replacement being on the top level. While these areas of slabs are removed, deterioration of the beams needs to be addressed by either addition of flange plates, web plates or full removal and replacement of the beam itself. Web plates and flange plates will also be required at many column locations in the garage. SEA recommends that delaminated concrete be chipped out and replaced with a specially formulated ready mixed concrete, shotcrete or prepackaged concrete patching material. The quantity of repairs typically dictates the material selection with ready mixed concrete or shotcrete being preferred over prepackaged concrete mix materials. These repairs should be made in conformance with International Concrete Repair Institute (ICRI) and American Concrete Institute (ACI) guidelines. Repairs should be performed at delaminated elevated slabs, walls, soffits, beams, stairs, and columns. Corrosion-related repairs will involve concrete removal, possible reinforcing steel replacement, and/or cleaning and concrete patching. The removal will consist of removing the existing concrete to a depth of ¾” clear around any corroded reinforcing. After concrete removal, the existing Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 29 City of Jefferson, Missouri 29 reinforcing will be sandblasted and coated with a corrosion inhibiting material. The area will be patched with an approved cementitious material. All of the stairs will require structural repair with the most significant being the two west stairs and the interior stairs. In some cases, full removal and replacement will be required. The existing handrails are severely deteriorated, and none meet current code requirements for spacing of intermediate members. These will need removal and replacement in their entirety. All joints in the slabs should have the existing sealant removed and replaced. Cracks should be routed and sealed prior to application of any waterproofing membranes. Based on the test results, it appears that chloride contamination levels are high enough to promote corrosion and have penetrated to the depth of the reinforcing steel. Since chloride ions have reached the steel reinforcing in sufficient concentration to promote corrosion of the reinforcing steel it is imperative that the elevated slabs are protected from additional moisture infiltration. It is recommended that a vehicular grade waterproofing membrane be installed. This will serve to minimize the amount of moisture entering the concrete and reduce the rate of corrosion of reinforcing steel in the slabs. Waterproofing membranes are not breathable meaning moisture in the vapor form cannot escape from the concrete. Likewise, metal deck is not breathable so any moisture in the concrete slabs cannot escape. This can result in de-bonding the waterproofing membrane from the concrete potentially in large areas or total bond failure. In order to address this condition, holes will need to be drilled through the metal deck at relatively close intervals to let moisture vapor escape the concrete. Caulking of the joints in the slab will serve to minimize the amount of moisture migrating through joints thereby protecting the structural steel framing members. Routing and sealing of cracks will also protect the reinforcing steel in the slabs. The reader should note that application of a waterproofing membrane will slow down the rate of corrosion but will not terminate the progress of corrosion in concrete to remain. Humidity in the air can be sufficient for continued corrosion, but the rate of corrosion will be greatly reduced. Vehicular waterproofing membranes should be applied to all levels of both structures. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 30 City of Jefferson, Missouri 30 East Structure The east structure is exhibiting fewer and less significant signs of deterioration. Some localized delaminations are present on the surface and the soffits of the floor framing. These should be repaired by chipping and patching methods in accordance with ACI and ICRI guidelines. Proper selection of repair methods and materials are critical. Care should be taken during the repairs to reduce the chance of damage to the post tensioning cables. Several cracks in the slab are actively leaking. All joints in the slabs should have the existing sealant removed and replaced. Cracks should be injected with epoxy and the top of the cracks should be routed and sealed prior to application of any waterproofing membranes. Repairs to post tensioning cables where the pan joint stem has been damaged will be required. Further investigation will be required during the design or construction phase to determine the extent of damage to the cables. Temporary shoring should be installed under this beam until a repair can be made. Based on the test results, it appears that chloride contamination levels are high enough to promote corrosion and have penetrated to the depth of the reinforcing steel. Since chloride ions have reached the steel reinforcing in sufficient concentration to promote corrosion of the reinforcing steel it is imperative that the elevated slabs are protected from additional moisture infiltration. In the case of the east structure, it is importance to protect the reinforcing steel bars and the post tensioning cables. The cables are protected with a plastic sheathing however experience has shown that penetrations in the sheathing allow chloride laden moisture to come into contract with the cables. Exposed sections of cable and exposed anchors will result in deterioration leading to significant impact on the load carrying capacity of the floor framing system. It is recommended that a vehicular grade waterproofing membrane be installed. This will serve to minimize the amount of moisture entering the concrete and reduce the rate of corrosion of reinforcing steel in the slabs. Caulking of the joints in the slab will serve to minimize the amount of moisture migrating through joints to the reinforcing steel bars and post tensioning cables. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 31 City of Jefferson, Missouri 31 Architectural West Structure The garage is currently signed for less than 7’ clear overhead. This does not meet current code. There is no effective way to correct this code deficiency. No recommended repairs. The accessible route for the first floor ADA parking spaces needs to be clearly marked. Currently the path does not meet code requirements. Handrails need to be installed at the ADA pedestrian ramp. Stair handrails need to be replaced to meet ADA and code requirements for rail extensions. The stair guardrails need to be replaced to meet code requirements for fall protection, spacing of guardrail infills. Most existing stairs do not meet code requirements for minimum width. There may be no effective way to correct this code deficiency. No recommended repairs. The parking attendant booth does not meet ADA accessibility standard. Recommend a new parking booth depending on direction of updating parking and revenue control systems. The current ramp traffic pattern is such that the down-bound traffic at the north end where it converges with the up-bound ramp converges in a potential collision point that does not meet current best practices. This may be a liability risk to the owner. There is no effective way to modify the traffic pattern in this existing structure. Areas of water ponding could pose slipping hazards in freezing weather. Recommend installation of additional small drains at ponding locations. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 32 City of Jefferson, Missouri 32 Portions of the lower-level break room are not served by an accessible path. Recommend modifications. The existing countertops, casework, and elevator do not meet the full requirement of ADA. Recommend renovation of office to meet current ADA requirements. Paint interior of west structure. East Structure Modify parking layout and signage to meet ADA van accessible parking requirements. Remove curb within ADA access. Paint interior and exterior of east structure. Mechanical Electrical and Plumbing Electrical Replace light fixtures in generator room, storage room and breakroom with new LED. Replace or add lighting to first floor parking to improve light levels. Add motion detectors. Replace light fixtures on all levels of stairwells with motion detector LED. Replace conduit and wiring for light fixture replacement noted above. Remove and replace electrical panels on all five levels with Nema 3R enclosures. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 33 City of Jefferson, Missouri 33 Surveillance Install more surveillance cameras near elevators and stairwells at all 5 levels. Fire Sprinkler Systems Replace Backflow Preventer (See report from Custom Engineering) Replace Air Compressor (See report from Custom Engineering) Plumbing Systems Test and reinsulate heat trace for sanitary waste and dometic water piping near vehicle entries. (See report from Custom Engineering) Replace back flow preventers and sump pumps (See report from Custom Engineering) Provide knee protection for lavatory at Men’s room 209 and Women’s room 210. HVAC Systems Replace ductwork grilles and exhaust fans as identified in Custom Engineering Report. Replace package AC unit. (See report from Custom Engineering) Hydronic Ice Melting Systems Replace boiler and pump (See report from Custom Engineering) Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 34 City of Jefferson, Missouri 34 Parking And Revenue Control Systems Replace existing equipment with Best in Class yet modest cost parking and revenue control equipment. (See Parking Whisperer report for options and recommendations) Elevator Replace Hydraulic Controller. Update Cab Interior. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 35 City of Jefferson, Missouri 35 ENGINEER’S OPINION OF PROBABLE CONSTRUCTION COSTS The following is SEA’s Engineer’s Opinion of Probable Construction Costs for the recommended repairs for the Madison Street Garage in Jefferson City, MO. This summary includes the structural repair recommendations as well as recommendations of repair for Mechanical, Electrical and Plumbing items, Architectural items and Parking and Revenue Control items. The estimated quantities and prices calculated are based on 2022 field surveys, average values as obtained on bids submitted by contractors with similar projects and published cost estimating data. If these repairs are to be postponed beyond 2022, additional costs should be anticipated due to increased quantities as well as increase in material and construction costs. Note: The quantities are estimates and may vary from actual quantities at time of repairs. These costs can be greatly affected by material costs, fluctuations, labor increases, the bidding environment at the time work is to be performed and inflation. In the current inflationary cycle, increases in cost could be significant. The Engineer’s Opinion of Probable Construction Costs has included a design contingency amount and a construction contingency amount. In a project such as this there will be a certain amount of discovery during the repair project. This discovery could be significant in nature and require additional design and constructions costs. The opinion of cost provides the “total construction” cost and the “total construction cost with burden”. The total construction cost with burden includes mobilization and contractor profit (20%), project design contingency (5%), project construction contingency (15%) and engineering design and CA phase services (9%). SEA strongly recommends that the owner include these contingency amounts. This information is provided to allow the reader to select specific work Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 36 City of Jefferson, Missouri 36 items to review and analyze. It should be understood that the percentages for the above items could vary depending on the combination of specific work items selected. The items mentioned in this report should be addressed in a timely manner as the deterioration will only worsen with the passage of time. Jefferson City, MO – Madison Street Garage Condition Assessment KU Medical Center – Kansas City KS 37 City of Jefferson, Missouri 37 ADDITIONAL CONSIDERATIONS This report is intended to assist the owner in determining a course of action for repair of this garage. This report is not intended to serve as a set of construction repair or bidding documents. If the owner decides to proceed to preparation of construction repair documents, it is recommended that an assessment be performed on the east garage post tensioned cast-in-place garage to determine humidity levels in the post tensioning cable. This will serve to provide a more detailed assessment of the condition of the post tensioning cables and provide recommendations on whether the cables should be dried and re-greased. It should be noted that if a repair project for the Madison Street Garage is performed, there is little to no likelihood that a phased approach would allow for partial use of the garage during the repair project. Due to the extent of repairs needed for the west portion of the garage, entire levels would be shut down, including the level(s) below the one being worked on. With the upper levels of the east portion only accessible form the west side, the majority of parking would be restricted from use. What parking may remain open may not be safe to occupy during construction. Additionally, pursuing a phased repair effort significantly adds to the cost and time frame of the project. It would be best to allow the contractor complete access for the repairs. No environmental study was performed as part of this assessment. If it has not already been completed, SEA recommends that an environmental study be performed in the garage. Jefferson City MO - Madison St. Garage Condition Assessment Engineers Opinion of Probable Construction Costs Cost Area/Quantity Units Total Value West Structure Remove and Replace Concrete Elevated Slabs $98.00 51,375 s.f.$5,034,750.00 Repair of Deteriorated Concrete Elevated Slabs $60.00 1,500 s.f.$90,000.00 Repair of Deteriorated Beams $192,000.00 1 l.s.$192,000.00 Remove and Replace Deteriorated Beams $88,500.00 1 l.s.$88,500.00 Repair of Deteriorated Columns $94,650.00 1 l.s.$94,650.00 Removal and Replacement of Stair Sections $155.00 850 s.f.$131,750.00 Repair of Deteriorated Stair Sections $110.00 650 s.f.$71,500.00 Removal and Replacement of Handrails/Guardrails at Stairs $77,560.00 1 l.s.$77,560.00 Remove and Replace Handrails at Entrances, Exists, and ADA Ramps $31,250.00 1 l.s.$31,250.00 Add Additional Pipe Railing to existing Perimeter Guard Rales all Levels $92,120.00 1 l.s.$92,120.00 Drill 3/8" holes through Metal deck at Soffit for Vapor Transfer $2.50 16,000 s.f.$40,000.00 Prepare Elevated Slabs and Install Vehicular Traffic Waterproofing Membranes $4.95 130,000 s.f.$643,500.00 Remove and Replace Parking Attendant Booth $8,675.00 1 l.s.$8,675.00 Remodel Lower Level Break Room $55,350.00 1 l.s.$55,350.00 Remove and Replace Curb at Elevator Access $2,320.00 1 l.s.$2,320.00 Install Drains in Ponding Areas of Elevated Structural Slabs $3,850.00 12 u.p.$46,200.00 Apply High Performance Coating to All Structural Steel Framing $145,000.00 1 l.s.$145,000.00 Apply Breathable Coating System to all Exposed Interior Concrete $122,000.00 1 l.s.$122,000.00 Re-stripe Garage $8,350.00 1 l.s.$8,350.00 Remove and replace Ductwork $64,207.00 1 l.s.$64,207.00 Remove and Replace Intake Grills $2,304.00 1 l.s.$2,304.00 Provide Carbon Monoxide Detector System $2,921.00 1 l.s.$2,921.00 Remove and Replace Exhaust Fans $30,729.00 1 l.s.$30,729.00 Clean Existing Exhaust Fans $272.00 1 l.s.$272.00 Remove and Replace Baseboard Heater $207.00 1 l.s.$207.00 Remove and Replace Cabinet Heaters $1,165.00 1 l.s.$1,165.00 Remove and Replace AC Window Unit $911.00 1 l.s.$911.00 Remove and Replace Heat Trace for Sanitary Waste and Water $8,608.00 1 l.s.$8,608.00 Install Backflow Preventer $2,866.00 1 l.s.$2,866.00 Remove and Replace Hot Water Heaters $2,029.00 1 l.s.$2,029.00 Remove and Replace Sump Pumps $13,636.00 1 l.s.$13,636.00 Install ADA Lavatory Protection $239.00 1 l.s.$239.00 Removal of all Conduit and Wiring Throughout Garage $19,516.00 1 l.s.$19,516.00 Install New Conduit, Wiring, and Panelboards Throughout Garage $35,600.00 1 l.s.$35,600.00 Remove and Replace Wiring and Controllers for Sump Pumps $8,297.00 1 l.s.$8,297.00 Remove and Replace Starter and Failure Alarm for Exhaust Fans $8,904.00 1 l.s.$8,904.00 Remove and Replace all Lighting in Garage $50,268.00 1 l.s.$50,268.00 Upgrade Elevator System $124,000.00 1 l.s.$124,000.00 East Structure Repair of Deteriorated Concrete Elevated Slabs $55.00 300 s.f.$16,500.00 Full Depth Repairs of Concrete Elevated Slabs $88.00 250 s.f.$22,000.00 Repair of Deteriorated Concrete Elevated Slab Soffits $129.00 100 s.f.$12,900.00 Crack Injection of Concrete Elevated Slabs $46.50 500 s.f.$23,250.00 Repair of Post Tension Cables in Joist, Beams and Slabs $4,400.00 6 u.p.$26,400.00 Assessment of Post Tension Cable System $31,250.00 1 l.s.$31,250.00 Prepare Elevated Slabs and Install Vehicular Traffic Waterproofing Membranes $4.95 55,000 s.f.$272,250.00 Remove Curb with ADA Access $1,450.00 1 l.s.$1,450.00 Re-stripe Garage $7,750.00 1 l.s.$7,750.00 Apply Breathable Coating System to all Exposed Interior and Exterior Concrete $165,000.00 1 l.s.$165,000.00 West and East Structures Replace Parking Operational Equipment and Signage $240,000.00 1 l.s.$240,000.00 Project Subtotal $8,170,904.00 Mobilization and Profit (20%)$1,634,180.80 Project Design Contingency (5%)$490,254.24 Construction Contingency (15%)$980,508.48 Engineering Design and CA Phase Services (9%)$882,457.63 Project Total $12,158,305.15 10-Oct-22 Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX A BNIM Architects Report 2/1/22 ARCHITECT’S OBSERVATION REPORT Project: Jefferson City Madison Garage BNIM Project no: 22002.00 Present at site: Craig Scranton, Principal Existing Garage Evaluation for ADA and building code conditions West garage 1. The garage is signed less than 7’0” clear overhead. o This prevents access by ADA van accessible vehicles (8’2” required.) o Current building code requires a minimum 7’-0” clear overhead throughout parking garages. 2. The accessible route from the first floor ADA parking spaces is not clearly marked. The crosswalk should be extended with blue paint across the exit and to the ADA ramp. o Accessible parking that requires the accessible route to pass behind more than two cars in parallel to the drive aisle is considered unacceptable. 3. No handrails are present at the ADA pedestrian ramp and should be provided. 4. The stair handrails do not meet ADA or building code requirements for rail extensions. 5. The stair guardrails do not meet building code requirements for fall protection. Spacing of guardrail infills in inadequate. Height of guards is inadequate. 6. Most of the existing stairs do not meet the current building code minimum width requirement of 48” between handrails. 2 7. Significant rust at guardrails suggests that the guards do not meet the building code requirements for horizontal loading. Guards and handrails were also noted as missing in several locations. 8. The parking attendant booth does not meet the ADA accessibility standard for turn radius, accessible path, counter height, and knee clearance. 9. In the building code, the lowest level of the west garage is classified as an ‘enclosed garage’. This requires the installation and operation of mechanical ventilation and dry-pipe fire sprinklers, neither of which were observed in the existing space. 10. The convergence of the down-bound traffic at the North end where the up-bound ramp converges, and the down-bound ramp must turn right is a potential collision point that does not meet current best practices for garage vehicular circulation. This may be a liability risk to the owner. 11. Many locations were observed where drainage is not getting to the drains. It appears that additional drains have been added to attempt to fix this deficiency, but there were still locations where water was diverted near the drain, but not into the drain. The overall drainage profile appears shallow and does not appear to prevent ponding. This is a long - term maintenance issue, and an owner liability issue especially in the winter when freezing conditions create slippery surfaces. 12. Portions of the lower-level break room are not served by an accessible path. Clear widths and turning space were not provided. 13. The existing countertops, casework, and elevator do not meet the full requirements of the 2010 ADA. An exhaustive list of all ADA deviations has not been made because the existing counters, casework and elevator would fall lower on the ADA list of needed improvements but does not meet the full requirements. If renovated, we suggest that all these be upgraded to meet ADA. East garage addition 3 14. The ADA parking spaces could be signed to meet ADA and ADA van accessible based on preliminary review. The clear height of the first floors appears to be 8’-2” clear. 15. Raised curb within ADA access aisle is non-compliant. Additional Condition photos included below for reference: 4 Stair widths, guardrail infill, tread depth and riser heights are inadequate. 5 Sloped ADA ramp lacks required handrails. 6 7 8 Guardrails at stairs are inadequate. 9 10 11 12 13 Raised curb within ADA aisle is non-compliant. 14 Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX B Custom Engineering’s Report TABLE OF CONTENTS Introduction .................................................................................................................................1 Location...................................................................................................................................1 Previous Construction Phases ................................................................................................2 As Currently Constructed ........................................................................................................2 Scope of Assessment.................................................................................................................3 Document Review ...................................................................................................................3 Observation of Existing Conditions ..........................................................................................4 Electrical Systems...................................................................................................................4 Fire Sprinkler Systems ............................................................................................................7 Plumbing Systems...................................................................................................................8 HVAC Systems......................................................................................................................15 Hydronic Ice Melting Systems...............................................................................................26 Recommendations ....................................................................................................................27 Electrical Systems.................................................................................................................27 Fire Sprinkler Systems ..........................................................................................................29 Plumbing Systems.................................................................................................................29 HVAC Systems......................................................................................................................30 Hydronic Ice Melting Systems...............................................................................................30 1 INTRODUCTION Location The Madison Parking Garage in Jefferson City, Missouri is located south of the intersection of Madison Street and East Capital Avenue. Garage is outline below in red. Site Location 2 Previous Construction Phases Original construction The original construction started during 1961 and consisted of three parking levels. This construction also included: Level 1 (previously labelled Basement) mechanical room Now demolished Level 2 (previously labelled 1st Level) restroom Hydronic ice melting of ramps for access to Level 1 through 3 Addition of 4th Level The construction of an additional fourth parking level was started during 1974. This construction also included: Elevator spanning all four parking levels Now demolished office and storage spaces Domestic water hydrants located on all levels Electric ice melting of ramps for access to Level 4 Addition of Southeastern Expansion The construction of a southeastern expansion to all four levels was started during 1982. Addition of Partial 5th Level The construction of an additional fifth parking level was started during 1990. This fifth level did not extend above the 1982 southeastern expansion. This construction also included: Extending the elevator to serve new Level 5 Generator Demolition of existing restroom, office, and storage spaces New restroom, breakroom, storage, and office spaces Sprint PCS Facilities The construction of Sprint PCS cellular telephone transceiver facilities was started during 1998. New Payment Systems and Signage The installation of new payment systems and signage was started during 1999. As Currently Constructed The Madison Parking Garage has five parking levels currently labeled Level 1 through Level 5 with Level 1 partially below grade. 3 SCOPE OF ASSESSMENT Custom Engineering, Inc. (CEI) was retained to assess the condition of the mechanical, electrical, and plumbing (MEP) systems for all five levels. Refer to photo of the Madison Parking garage in Jefferson City, Missouri. In general, the scope of the MEP systems assessment included: Review of available record documents. Physical assessment of the existing facility. Provide a summary of observations and recommended improvements. Provide an opinion of construction cost for repair and replacement work recommended for completion. Document Review Applicable Building Codes and Reference Handbooks Previous Construction Documents 2015 International Building Code 2015 International Mechanical Code 2014 National Electrical Code 2015 International Plumbing Code IESNA 9th Edition Lighting Handbook 4 OBSERVATION OF EXISTING CONDITIONS Electrical Systems There are two existing main switchboards (400 amp, 120/240V) and an existing generator that are located in Generator Room 110 on Level 1. The two main switchboards and generator are in good condition. Refer to photos below for existing main switchboard and existing generator. Most of the existing conduits inside Generator Room 110 on level 1are rusted and need to be replaced .Refer to photo below for rused conduits inside Generator Room 110. 5 Stairwells Areas Light fixtures in the stairwells for all five levels are fluorescent light fixtures and are not in good shape and they need to be replaced with LED light fixtures for better illumination and energy savings. Refer to Table 16 on sheets 28 for recommended maintained illuminance values at parking garage stairs. Security Cameras and access control system There are security cameras at the entrance and exit of the parking garage also there are security cameras mounted on the parking lot light poles on the roof level. surveillance system should be enhanced by adding more cameras in all five levels of the parking garage. Access control system that includes Gates and card readers in the first level are in good condition. 6 Parking Garage area Most of the conduits for the parking garage light fixtures are rusted and need to be replaced with new conduit. All the electrical panels located inside the parking garage area in all five levels are rusted and need to be replaced with new panels. The new electrical panels located need to be weatherproof panels. See below photos of rusted existing conduit and existing electrical panel at one of the parking garage levels. 7 Fire Sprinkler Systems Table 1: Fire Water Utility Schedule Tag Location Utility Ratings Condition UTIL-FW SW Site 6” Service Table 2: Fire Water Backflow Preventer Schedule Tag Location Mfg Model Ratings Condition Passed BFP-FW Table 3: Air Compressor Schedule Tag Location Mfg Model Serial Ratings Condition DOM CMPR-B Gen 110 1-1/2 hp, 3 ph, 240 V 1961 8 Plumbing Systems Domestic Water Table 4: Domestic Water Utility Schedule Tag Location Utility Ratings Condition UTIL-DW-1 SW 1961 Site 3/4” Service, 1” Meter UTIL-DW-2 N 1982 Addition 2” Service, 2” Meter Table 5: Domestic Water Backflow Preventer Schedule Tag Location Mfg Model Ratings Condition Passed BFP-DW-1 BFP-DW-2 Table 6: Water Heater Schedule Tag Location Mfg Model Rating Condition Installed HW-112 Breakroom 112 AO Smith ELJF—6- J261161000 1500 W, 1 ph, 120 V Old 1990 HW-210 Womens 210 AO Smith ELJF—6- J261161000 1500 W, 1 ph, 120 V Old 1990 9 HW-112: Context HW-112: Nameplate HW-210: Context HW-210: Nameplate 10 Sanitary Waste Reinsulate heat-traced sanitary waste lines located near vehicle entries. Heat-Traced Sanitary Waste Heat-Traced Sanitary Waste Table -7: Sanitary Waste Utility Schedule Tag Location Utility Ratings Condition UTIL-SW SW Site 6” Service Table 8: Sump Pump Schedule Tag Location Mfg Model Ratings Condition Installed SP-1 Level 1 North Parking 3 hp, 3 ph, 240 V 1961 SP-ELEV Elev Eqpt 113 1/3 hp, 1 ph, 120 V 1974 SP-SWG Storage 111 1/2 hp, 1ph, 240 V 1990 11 SP-SWG: Context SP-SWG: Closeup Fixtures Table 9: Plumbing Fixture Schedule Tag Desc Location Condition Installed SNK-112 Sink, double compartment Breakroom 112 Acceptable LAV-209 Lavatory, wall-hung Mens 209 Missing ADA knee protection WC-209 Water closet, tank Mens 209 Acceptable LAV-210 Lavatory, wall-hung Womens 210 Missing ADA knee protection WC-210 Water closet, tank Womens 210 Acceptable 12 SNK-112: Context SNK-112: Closeup LAV-209: Context LAV-209: Closeup 13 WC-209: Context WC-209: Closeup LAV-210: Context LAV-210: Closeup 14 WC-210: Context WC-210: Closeup 15 HVAC Systems Exhaust Below grade parking areas will be ventilated with exhaust fans EF-1 and EF-2. These areas will be monitored for carbon monoxide and ventilation rates may be reduce when carbon monoxide levels are low. Some exhaust grilles and ductwork for exhaust fans EF-1 and EF-2 is severely rusted. Rusted exhaust grill Rusted exhaust grille and ductwork Rusted exhaust ductwork Rusted exhaust ductwork The elevator shaft will be continuously ventilated by exhaust fan EF-113. 16 Restroom exhaust fans EF-209 and EF-210 will operate with lighting controls. Get nameplates photos. Ceiling EF nameplate may be under grille. Table 10: Exhaust Fan Schedule Tag Location Mfg Model Ratings Condition Installed EF-1 Shaft near Stairs 106 32000 cfm, 3 hp, 3 ph, 240 V 1990 EF-2 Shaft near Stairs 206 32000 cfm, 3 hp, 3 ph, 240 V 1990 EF-113 Elev Eqpt 113 1/10 hp, 1 ph, 120 V 1990 EF-209 Mens 209 1990 EF-210 Womens 210 1990 EF-1 17 EF-2: Context EF-2: Closeup EF-113 EF-209 18 EF-210 Louvers Table 11: Louver Schedule Tag Serves Location Size Condition Installed LVR-EF-1 EF-1 Shaft near Stairs 506 60”x96”Acceptable 1990 LVR-EF-2 EF-2 Shaft near Stairs 506 60”x96”Acceptable 1990 LVR-GEN-IN Generator intake Gen 110 48”x64”1990 LVR-GEN-EXHT Generator exhaust Gen 110 48”x64”1990 19 LVR-EF-1 and LVR-EF-2 LVR-GEN-IN: Entering side LVR-GEN-IN: Leaving side 20 LVR-GEN-OUT: Entering side LVT-GEN-OUT: Leaving side Heating Table 12: Heater Schedule Tag Location Mfg Model Serial Ratings Condition Installed BBH-209 Mens 209 Corroded CH-210 Womens 210 Corroded CH-HUT Attendant Hut Corroded UH-111 Storage 111 Marley MUH072 Date 0801 7.5 kW, 1 ph, 240 V Acceptable 2001 UH-113 Elev Eqpt 113 Marley MUH-05-2 09-89-531 5 kW 1 ph, 240 V Acceptable 1990 21 BBH-209: Context BBH-209: Closeup CH-210: Context CH-210: Closeup 22 CH-HUT: Context CH-HUT: Closeup UH-111: Context UH-111: Nameplate 23 UH-113: Context UH-113: Nameplate Cooling Get nameplates photos. AC-HUT nameplate may be under indoor grille. Table 13: Package AC Schedule Tag Location Mfg Model Ratings Condition Installed AC-109 Storage 109 Comfort-Aire AC-112 Breakroom 112 Comfort-Aire REG-183M Cool: 18.5 MBH, Heat: 16.0 MBH Acceptable 2020 AC-211 Office 211 Comfort-Aire AC-HUT Attendant Hut Frigidaire 24 AC-109: Context AC-109: Closeup AC-112: Context AC-112: Nameplate AC-211: Indoors AC-211: Outdoors 25 AC-HUT: Indoors AC-HUT: Outdoors 26 Hydronic Ice Melting Systems Boilers Table 14: Boiler Schedule Tag Location Mfg Model Serial Ratings Condition Installed B-1 Gen 110 150 kW, 3 ph, 240 V 1961 Pumps Table 15: Pump Schedule Tag Location Mfg Model Serial Ratings Condition Installed P-B-1 Gen 110 3 hp, 3 ph, 240 V 1961 27 RECOMMENDATIONS Electrical Systems Lighting Light fixtures located in generator room 110, storage room 111 and breakroom 112 on level 1 are fluorescent light fixtures and need to be replaced with LED light fixtures for energy savings. Lighting at some of the areas in the first-floor parking garage is not uniform and below safety requirements. See table 16 on sheets 28 for lighting level reading at level 1 parking area. Below are photos of light fixtures in generator room 110 on the first level and photo of the existing parking lot light fixture on the first level. The light fixtures at the stairwells for all five levels in the parking garage building needs to be replaced with new led light fixtures equipped with motion sensors so when the stairwell is occupied then the light fixture will go to 100% and if the stairwell is not occupied then the stairwell will go to 50%. Whenever existing light fixtures are replaced, all the existing conduits and wires to the existing light fixtures need to be replaced with new conduits and wires to the source electrical panels. The use of photocell to control all the light fixtures located at the opening in the parking garage level is recommended during the day, in that way, the light fixture will not come on and it only comes on when it is dark or cloudy. For the new LED light fixtures inside the parking garage, it is recommended to have an occupancy sensor in each light fixture. By using an occupancy sensor in each light fixture, the light fixture 28 can stay at 50% most of the time and will only go to 100% if there is a car or a person by the light fixture. This will result in saving energy in the lighting load for the parking garage. All existing electrical panels located in the parking garage building in all five levels need to be replaced with new electrical panels. The new electrical panels need to be in Nema 3R enclosure. Table 16: Lighting Level Readings from Site Visit and IES Recommended Maintained Illuminance Values LABEL UNITS AVG LIGHTING LEVEL FROM SITE VISIT AVG IES RECOMMENDED MAINTAINED ILLUMINANCE VALUE PARKING GARAGE AREA FC 3.70 5.0 ELECTRICAL/MAINTENANCE ROOM FC 23.0 30 PARKING GARAGE STAIRS FC 10.2 15 Surveillance More surveillance cameras should be installed in the areas near the elevators and the stairwells at five levels for the Madison parking garage building. 29 Fire Sprinkler Systems Deficiencies Table 17: Deficient Fire Sprinkler Equipment Type Tag Location Deficiency Recommendation Backflow Preventer BFP-FW Age Replace Air Compressor CMPR-B Gen Room 110 Age Replace Plumbing Systems Deficiencies Table 18: Deficient Plumbing Equipment Type Tag Location Deficiency Recommendation Heat Trace Sanitary waste and domestic water piping near vehicle entries Test and reinsulate heat-traced piping. Back Flow Preventer BFP-DW-1 Age Replace Back Flow Preventer BFP-DW-2 Age Replace Sump Pump SP-1 Level 1 North Parking Age Replace Sump Pump SP-ELEV Elev Eqpt 113 Age Replace Sump Pump SP-SWG Storage 111 Age Replace Lavatory LAV-209 Mens 209 Missing ADA knee protection Provide ADA knee protection Lavatory LAV-210 Womens 210 Missing ADA knee protection Provide ADA knee protection 30 HVAC Systems Deficiencies Table 19: Deficient HVAC Equipment Type Tag Location Deficiency Recommendation Ductwork Level 1 Rusty Replace Grilles Level 1 Rusty Replace Exhaust Fan EF-1 Shaft near Stairs 106 Old Replace Exhaust Fan EF-2 Shaft near Stairs 206 Old Replace Exhaust Fan EF-113 Elev Eqpt 113 Old Replace Exhaust Fan EF-209 Mens 209 Old Replace Exhaust Fan EF-210 Womens 210 Old Replace Package AC AC-HUT Attendant Hut Old Replace Hydronic Ice Melting Systems Deficiencies Table 20: Deficient HVAC Equipment Type Tag Location Deficiency Recommendation Boiler B-1 Gen 110 Age Replace Pump P-B-1 Gen 110 Age Replace MATERIAL LABOR EQUIPMENT TOTAL MATERIAL LABOR EQUIPMENT TOTAL 230505 10 1570 Demo Ductwork, steel LB 4000 0.97$ -$ 3,519.16$ -$ -$ 3,519.16$ 233113 13 0580 Rectangular Ducts, galvanized steel LB 10000 0.68$ 5.94$ 6,847.60$ 53,839.52$ -$ -$ 60,687.12$ -$ -$ -$ -$ -$ TOTALS Systems 1 64,206.28$ 64,206.28$ 233713 30 0680 Intake Grill, AL, 50"x24"EA 3 210.10$ 49.00$ 634.71$ 133.33$ -$ -$ 768.04$ 233713 30 0680 Intake Grill, AL, 48"x18"EA 6 210.10$ 49.00$ 1,269.42$ 266.66$ -$ -$ 1,536.08$ -$ -$ -$ -$ -$ TOTALS Systems 1 2,304.12$ 2,304.12$ 230953 10 0606 Carbon Monoxide Detector Panel EA 1 1,225.00$ 141.00$ 1,233.58$ 127.89$ -$ -$ 1,361.46$ 230953 10 0610 Carbon Monoxide Detector Sensor EA 2 705.00$ 77.00$ 1,419.87$ 139.68$ -$ -$ 1,559.55$ -$ -$ -$ -$ -$ TOTALS Systems 1 2,921.01$ 2,921.01$ 230505 10 1760 Demo Exhaust System EA 1 67.50$ -$ 61.22$ -$ -$ 61.22$ 233413 10 0616 EA 1 14,400.00$ 885.00$ 14,500.80$ 802.70$ -$ -$ 15,303.50$ -$ -$ -$ -$ -$ TOTALS Fans 2 15,364.72$ 30,729.44$ 230000 EA 1 100.00$ -$ 90.70$ -$ -$ 90.70$ -$ -$ -$ -$ -$ TOTALS Fans 3 90.70$ 272.10$ 230505 10 2740 Demo Electric Baseboard Heater EA 1 53.00$ -$ 48.07$ -$ -$ 48.07$ 238333 10 2000 Electric Baseboard Heater, 6', 1500 W EA 1 62.50$ 106.00$ 62.94$ 96.14$ -$ -$ 159.08$ -$ -$ -$ -$ -$ TOTALS Heater 1 207.15$ 207.15$ 230505 10 2750 Demo Electric Cabinet Heater EA 1 66.00$ -$ 59.86$ -$ -$ 59.86$ 238333 10 3190 Electric Cabinet Heater, 1500 W EA 1 400.00$ 132.00$ 402.80$ 119.72$ -$ -$ 522.52$ -$ -$ -$ -$ -$ TOTALS Heaters 2 582.39$ 1,164.77$ 230505 10 8400 Demo Windows AC EA 1 28.00$ -$ 25.40$ -$ -$ 25.40$ 238119 10 4780 Windows AC, 18 MBH EA 1 760.00$ 133.00$ 765.32$ 120.63$ -$ -$ 885.95$ -$ -$ -$ -$ -$ TOTALS Package 1 911.35$ 911.35$ 102,716.22$ HVAC COSTS FM ID (LEAD WITH ')LINE DESCRIPTION UNIT QTY BARE COST (USE TOTAL EXCLUSIVELY)ADJUSTED WITH INDEXES ITEM TOTAL SYSTEM TOTAL CATEGORY TOTAL GRILLES: REPLACE EXHAUST FANS EF-1 AND EF-2: REPLACE CABINET HEATERS CH-210, AND CH-HUT: REPLACE DUCTWORK: REPLACE CO DETECTION: PROVIDE WINDOW AC AC-HUT: REPLACE EXHAUST FANS EF-113, EF-209, AND EF-210: CLEAN BASEBOARD HEATER BBH-209: REPLACE MATERIAL LABOR EQUIPMENT TOTAL MATERIAL LABOR EQUIPMENT TOTAL 238333 10 4030 Heat Trace, 5 W/LF LF 400 11.15$ 1.00$ 4,491.22$ 362.80$ -$ -$ 4,854.02$ 220719 10 1034 Pipe Insulation, 1" thick, 4" Iron LF 400 3.87$ 6.05$ 1,558.84$ 2,194.94$ -$ -$ 3,753.78$ -$ -$ -$ -$ -$ TOTALS Facility 1 8,607.80$ 8,607.80$ 221119 42 4180 RPZ BFP, 2"EA 1 1,925.00$ 80.00$ 1,938.48$ 72.56$ -$ -$ 2,011.04$ 221113 23 3260 Copper Tubing, Type M, 1"LF 20 31.00$ 12.70$ 624.34$ 230.38$ -$ -$ 854.72$ -$ -$ -$ -$ -$ TOTALS Service 1 2,865.75$ 2,865.75$ 220505 10 3110 Demo Water Heater EA 1 45.50$ -$ 41.27$ -$ -$ 41.27$ 223333 10 4120 Electric Water Heater, 6 gal, 2 kW (Home Depot)EA 1 329.00$ 279.00$ 331.30$ 253.05$ -$ -$ 584.36$ 232120 46 2000 Expansion Tank 4.8 gal (Home Depot)EA 1 117.35$ 59.50$ 118.17$ 53.97$ -$ -$ 172.14$ 221113 23 2200 Copper Tubing, Type L, 1"LF 10 8.35$ 8.20$ 84.08$ 74.37$ -$ -$ 158.46$ 220719 10 1018 Pipe Insulation, 1" thick, 3/4" iron (3/4" CU)LF 10 2.07$ 4.13$ 20.84$ 37.46$ -$ -$ 58.30$ -$ -$ -$ -$ -$ TOTALS Heaters 2 1,014.52$ 2,029.05$ 220505 10 2198 Demo Pump Ea 2 46.50$ -$ 84.35$ -$ -$ 84.35$ 221429 13 2050 Sump Pump, 3 hp, 1-1/2" discharge Ea 2 4,550.00$ 1,000.00$ 9,163.70$ 1,814.00$ -$ -$ 10,977.70$ 221423 33 7260 Backwater Valve, 1-1/2" (Home Depot)Ea 2 34.98$ 63.00$ 70.45$ 114.28$ -$ -$ 184.73$ -$ -$ -$ -$ -$ TOTALS Sump 1 11,246.78$ 11,246.78$ 220505 10 2198 Demo Pump Ea 1 46.50$ -$ 42.18$ -$ -$ 42.18$ 221429 16 1080 Sump Pump, Elevator, 3/4 hp, 1-1/2" discharge, controls Ea 1 2,100.00$ 155.00$ 2,114.70$ 140.59$ -$ -$ 2,255.29$ 221423 33 7260 Backwater Valve, 1-1/2" (Home Depot)Ea 1 34.98$ 63.00$ 35.22$ 57.14$ -$ -$ 92.37$ -$ -$ -$ -$ -$ TOTALS Sump 1 2,389.83$ 2,389.83$ 220000 ADA Under Lavatory Protection Kit (Home Depot)Ea 1 28.87$ 100.00$ 29.07$ 90.70$ -$ -$ 119.77$ -$ -$ -$ -$ -$ TOTALS Lavatories 2 119.77$ 239.54$ 27,378.75$ CATEGORY TOTAL PLUMBING COSTS ITEM TOTAL SYSTEM TOTAL BARE COST (USE TOTAL EXCLUSIVELY)ADJUSTED WITH INDEXESFM ID (LEAD WITH ')LINE DESCRIPTION UNIT QTY HEAT TRACE: REPLACE ON SANITARY WASTE AND DOMESTIC WATER LAVATORY LAV-209 AND LAV-210: PROVIDE KNEE PROTECTION BACKFLOW PREVENTER BFP-DW-1: PROVIDE SUMP PUMP SP-108: REPLACE WATER HEATERS HW-112 AND HW-210: REPLACE SUMP PUMP SP-L1: REPLACE MATERIAL LABOR EQUIPMENT TOTAL MATERIAL LABOR EQUIPMENT TOTAL 260505 20 5740 Demolition, conduit and wires through out the garage LF 2400 $7.05 $- $16,920.00 $- $- $16,920.00 260505 50 4060 Demolition, Stairs light, generator room, storage rm light fixtures Ea 44 $59.00 $- $2,596.00 $- $- $2,596.00 TOTALS Facility 1 19,516.00$ 19,516.00$ 262416 55 6000 New weatherproof 200 amp panelboards EA 4 1,000.00$ 1,400.00$ 4,000.00$ 5,600.00$ -$ -$ 9,600.00$ 260533 13 0220 New conduit and wires for new panelboards LF 400 21.00$ 44.00$ 8,400.00$ 17,600.00$ -$ -$ 26,000.00$ -$ -$ -$ -$ -$ TOTALS Facility 1 35,600.00$ 35,600.00$ Reusing branch circuit -$ -$ -$ -$ -$ 260505 35 2710 Demo Combo Starter EA 2 77.00$ -$ 122.28$ -$ -$ 122.28$ 262419 40 7050 Duplex Motor Controller, 240 V, 3 pole, 5 hp (Rhombus)EA 1 2,409.00$ 405.00$ 2,447.54$ 321.57$ -$ -$ 2,769.11$ 262816 20 4510 Safety Switch, HD, 240 V, 3 pole, NEMA 3R, Fuse, 30 A EA 2 184.00$ 171.00$ 373.89$ 271.55$ -$ -$ 645.44$ 260533 16 1480 Cast Junction Box, 2 gang, 3/4" hub EA 2 59.00$ 53.00$ 119.89$ 84.16$ -$ -$ 204.05$ 260533 16 1544 Weatherproof Box Cover, 2 gang EA 2 1.27$ 10.00$ 2.58$ 15.88$ -$ -$ 18.46$ 260000 D5010 230 1280 Branch Circuit, 30 A LF 40 2.42$ 7.75$ 98.35$ 246.14$ -$ -$ 344.49$ 260000 Kele Alarm panel, KELE: AIS-24A Ea 2 170.66$ 100.00$ 346.78$ 158.80$ -$ -$ 505.58$ 260000 D5010 230 1200 Control circuit, EMT, 15 A LF 250 1.53$ 7.05$ 388.62$ 1,399.43$ -$ -$ 1,788.05$ -$ -$ -$ -$ -$ TOTALS Sump 1 6,397.45$ 6,397.45$ Reusing branch circuit -$ -$ -$ -$ -$ Controller include with pump pricing -$ -$ -$ -$ -$ 260505 35 2710 Demo Combo Starter EA 1 77.00$ -$ 61.14$ -$ -$ 61.14$ 260533 16 1470 Cast Junction Box, 2 gang, 1/2" hub EA 1 51.00$ 53.00$ 51.82$ 42.08$ -$ -$ 93.90$ 260533 16 1544 Weatherproof Box Cover, 2 gang EA 1 1.27$ 10.00$ 1.29$ 7.94$ -$ -$ 9.23$ 260000 D5010 230 1240 Branch Circuit, 20 A LF 20 1.90$ 7.50$ 38.61$ 119.10$ -$ -$ 157.71$ 260000 Kele Alarm panel, KELE: AIS-24A Ea 2 170.66$ 100.00$ 346.78$ 158.80$ -$ -$ 505.58$ 260000 D5010 230 1200 Control circuit, EMT, 15 A LF 150 1.53$ 7.05$ 233.17$ 839.66$ -$ -$ 1,072.83$ -$ -$ -$ -$ -$ TOTALS Sump 1 1,900.38$ 1,900.38$ Reusing branch circuit -$ -$ -$ -$ -$ 260505 35 2730 Demo Combo Starter EA 1 138.00$ -$ 109.57$ -$ -$ 109.57$ 262419 40 7080 Combo Starter and Fused Disconnect, 240 V, 3 pole, 20 hp EA 1 1,650.00$ 800.00$ 1,676.40$ 635.20$ -$ -$ 2,311.60$ 260533 16 1470 Cast Junction Box, 2 gang, 1/2" hub EA 1 51.00$ 53.00$ 51.82$ 42.08$ -$ -$ 93.90$ 260533 16 1544 Weatherproof Box Cover, 2 gang EA 1 1.27$ 10.00$ 1.29$ 7.94$ -$ -$ 9.23$ 260000 D5010 230 1240 Branch Circuit, 20 A LF 20 1.90$ 7.50$ 38.61$ 119.10$ -$ -$ 157.71$ 260000 Kele Diff Pressure Transmitter, -0.25" to 0.25" wc Setra: 2641R25WB11A1C Ea 1 305.76$ 200.00$ 310.65$ 158.80$ -$ -$ 469.45$ 280000 Kele Setpoint controller Honeywell: T775A2009 Ea 1 281.68$ 500.00$ 281.68$ 479.50$ -$ -$ 761.18$ 260000 Kele Alarm panel, KELE: AIS-24A Ea 1 170.66$ 100.00$ 173.39$ 79.40$ -$ -$ 252.79$ 260000 D5010 230 1200 Control circuit, EMT, 15 A LF 40 1.53$ 7.05$ 62.18$ 223.91$ -$ -$ 286.09$ -$ -$ -$ -$ -$ TOTALS Fans 2 4,451.52$ 8,903.04$ 265113 55 6000 New Garage led lights EA 13 1,000.00$ 116.00$ 13,000.00$ 1,508.00$ -$ -$ 14,508.00$ 265113 55 6000 New led lights for stairs, generator room and storage room EA 44 200.00$ 100.00$ 8,800.00$ 4,400.00$ -$ -$ 13,200.00$ 260533 13 0220 New conduit and wires for garage lights through out the garage LF 2400 1.90$ 7.50$ 4,560.00$ 18,000.00$ -$ -$ 22,560.00$ TOTALS Facility 1 50,268.00$ 50,268.00$ 122,584.87$ STARTER AND FAILURE ALARM FOR EXHAUST FANS EF-1 AND EF-2: REPLACE POWER DUPLEX STARTER FOR SUMP PUMP SP-L1: REPLACE ELECTRICAL COSTS FM ID (LEAD WITH ')LINE DESCRIPTION UNIT QTY BARE COST (USE TOTAL EXCLUSIVELY)ADJUSTED WITH INDEXES ITEM TOTAL SYSTEM TOTAL CATEGORY TOTAL DEMOLITION LIGHTING STARTER FOR SUMP PUMP SP-108: REPLACE CONTENGENCIES OVERHEAD PROFIT 30% 20% 15% ELECTRICAL 122,584.87$ 36,775.46$ 24,516.97$ 18,387.73$ 202,265.04$ PLUMBING 27,378.75$ 8,213.63$ 5,475.75$ 4,106.81$ 45,174.94$ HVAC 102,716.22$ 30,814.87$ 20,543.24$ 15,407.43$ 169,481.76$ 416,921.74$ CATEGORY INDEXED COST TOTAL GRAND TOTAL BASED ON 2022 RS MEANS COST SUMMARY Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX C Parking Whisperer’s Report June 17, 2022 Mr. Ralph Jones President Structural Engineering Associates, Inc. Via: RJones@seassociates.com Re: 201 Madison/209 Jefferson Parking Garage Rehabilitation Phase One Assessment Dear Mr. Jones: It is our pleasure to have attended the meeting on February 1 st in Jefferson City, touring the parking garage and the garage office and visiting with Ms. Wanda Nichols and several members of Jefferson City. We have reviewed the existing garage equipment and an overview of the operational practices at the garage and have developed an initial summary and recommendation. In addition, on June 17th, we conducted an extensive interview with Ms. Nichols (Parking division Supervisor), Natasha, and Britt Smith. I reviewed my initial draft of the current condition and options, which met with their approval. I confirmed our observations and recommendations. Our initial scope of work Option One – Replace or Enhance current equipment- Assess current equipment and provide a life assessment with the best utilization. We agreed to:  Review existing equipment  Review reporting capabilities  Functionality  Auditability  Potential for full or limited automation  Does the equipment meet the minimum needs of the city and its constituents?  How much longer will the equipment meet the minimum needs of the city and its constituents  Interview current staff  Provide a written report, answering these questions, providing viable options, the pros and cons, and approximate costs of any recommendations. This report addresses the Scope as Requested. 1. Review existing equipment – The equipment consists of well-worn equipment by Amano McGann (gates and ticket dispensers), Transcore RFID overhead card readers HD swipe, or proximity access cards. The system is augmented with paper hang tags (permits) and an honor mailbox for the exit when no cashier is on duty. Outside the scope of parking equipment but also noted are elevators on manual timers, significant opportunities in lighting, new or broken nesting* equipment, creative allocation of spaces in the basement (permit only), the top levels for the Governor's Office Building tenants, Levels One and Three for monthly parkers only, and Level two for transient and disabled drivers. These creative solutions are challenging to maintain and enforce. *Nesting – Nesting is creating a unique and controlled garage area (or a lot) within a garage. This is designed to segregate a group of vehicles utilizing control equipment designated for a group of parkers. Nests usually are at a premium or secured areas as part of a lease or operating agreement. Nests typically require additional equipment. 2. Review reporting capabilities – As noted above, reporting is virtually completed and manually generated, which is challenging to enforce. Revenue loss is most likely occurring (honor mailbox, raising the gates, and equipment that would have been considered obsolete or unserviceable ten years ago). There are few separations of duties due to the lack of viable equipment, limited staff, and general conditions. It is important to note that the team is doing an outstanding job with the conditioned equipment. Wanda and her team are commended for continuing to serve the city and its constituents under challenging circumstances. 3. Functionality – The system is somewhat functioning and is processing most transactions with the available tools. Staff is augmenting the “system” to improve customer service and keep the garage functioning. The inability to perform a viable audit is a concern. There is no reliable method to audit. Staff overall morale is excellent, and the customers interviewed were very complimentary. Controllable issues within the current budget and team (maintenance, signage, cleanliness, etc.) were quite good. PCI (Payment Card Industry) Compliance requires significant upgrades to the system, which may not be possible given its age. The garage could lose the ability to accept credit cards very shortly. 4. Auditability – Auditing would be limited at best, given the o bsolete Amano system, the great distance and expense for qualified technicians to service the equipment from hours away, the hangtags, and the manual payment entry logs. As long as gates are raised, and the honor mailbox is used, it is impossible to implement industry best practices. Current efforts are in place to manage the situation with the tools and shortcomings. 5. Potential full or limited automation – In reviewing the operation, and options within the Jefferson City team, we recommend partial automation with new equipment. This would serve to capture lost revenues and reduce in-person staffing. The city could redeploy well-trained staff. 6. Does the equipment meet the minimum needs of the city and its constituents ? – Drivers can enter and exit the garages. The minimum standard is being completed. Multiple opportunities exist to improve the system, enhance customer service, increase revenues, decrease expenses, create an auditable operation, and generate additional income. 7. How much longer will the equipment meet the city's and its constituents' minimum needs? Given that this equipment was considered unserviceable 15 years ago and obsolete ten, although somewhat meeting current minimum needs, we believe it is not genuinely meeting the city’s requirements for the reasons noted previously. 8. Interview current staff – We interviewed one-half dozen on-site staff and found morale to be high and a reluctance to complain. Our follow-up call with senior staff was well received and quite beneficial. Only when asked detailed questions did anyone share the challenges noted in this report. Our work discovered most challenges in the field. The city staff has done an outstanding job in challenging situations. We believe they would welcome the opportunity to be given tools to improve their customer's experience, reduce expenses, and increase revenues. 9. Provide a written report, answering these questions, providing viable options, the pros and cons, and approximate costs of any recommendations. – 10. Options and Estimated Costs (2022 pricing): Options: 1. Continue with the current operational method. a. Pros: No capital expense, status quo, a minimum standard level maintained. b. Cons: Unknown lost revenues, inability to audit, low customer service level, challenges to maximize revenues, lighting, concrete condition, and other aspects will continue to deteriorate, payroll higher than need be, and unknown additional costs will continue to mount—safety concerns also evident. 2. Replace minimal existing equipment, and maintain the current operational format. a. Pros: Limited capital expense, modest service improvements, significant gains for auditing, improved controls, and some slight service level improvements. b. Cons: Few service enhancements, inability to fully capitalize on revenue increases, full auditability, temporary fix, limited revenue improvement, payroll higher than needed, limited upgradability. 3. Replace existing equipment with Best in Class yet modest capital expense. a. Pros: Minimal Capital Option, significant service improvements, dramatic revenue increase possibilities, new management tools, and flexibility, decreased wear and tear, increased safety protocols, promotion of downtown growth, most costs recovered within two years or less. Surplus staff may be redeployed or enhance service levels. b. Cons: Minimal capital spending may reduce necessary staff. ON-street enhancements may be needed due to improved garage operations. Projected First Draft Financial Initial Costs for each option Without the benefit of soliciting proposals (yet) and with decisions to be made, rough “ballpark” or projected pricing (based on other RFPs performed in the last 18 months and in-depth market knowledge, taking into consideration limited-service options in Jefferson City being required from St. Louis or Kansas City) and the current supply chain issues, the time to act is now. Option One: Continue with the current operational method. $0 CapEx, Annual Loss Estimate $50,000-$100,000: opportunity costs and unnecessary expenses. Option Two: Replace minimal existing equipment, and maintain the current operational format. $50,000 - $100,000 CapEx, with opportunity cost and unnecessary expenses estimated at $10,000-$25,000 annually. Some revenue would be recovered, and limited auditing would be possible. Option Three: Replace existing equipment with Best in Class yet modest capital expense. $125,000 - $199,000 CapEx, potential new revenues, $40,000-$65,000 annually. Expenses reduction of $35,000-$70,000 annually, new revenue streams, $25,000-$50,000 annually. New revenue streams could include new billing software recovering credit cards, billing, and other fees, generating advertising with each transaction, and signage in the garage.  We do not recommend Option One. The current expenses will justify a rapid Return - on-Investment. Financing options are available for Options two and three if needed.  Option Two is the best option assuming the garage is expected to remain in operation for up to two years.  Option three is the best if the garage is operational for two -plus years.  Additional operational savings or increased revenues are possible in lighting retrofit, elevator upgrades, variable pricing, and other options not included in these estimates. Respectfully Submitted, John Oglesby CEO & Founder CEO@ParkingWhisperer.com 303.884.3710 Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX D Schindler Elevator General Inspection Jefferson City Parking Garage Capital planning for elevators & escalators 201 Madison St, Jefferson City, MO Jefferson City Parking Garage Presented by: Matthew Kenning Schindler Proposal MKEG-BV3KFF 2021.4.1 Schindler Elevator Corporation Introduction Entering the future now Schindler now makes it easier than ever to achieve substantially improved performance and reliability of your elevators and escalators – and keep tenants satisfied – with a customized plan that helps spread your capital outlay over time. With Schindler’s capital planning program, you receive a customized assessment of your building’s equipment. We will determine which systems can benefit most from recent technological advances for improved performance, reliability, safety, aesthetics and energy efficiency. Enclosed is a comprehensive capital plan that can be tailored to meet your budget requirements. We also offer a convenient financing program that makes it even easier to realize the benefits of upgrading your equipment. Schindler’s four-point assessment includes an evaluation in: – Performance and reliability – Code compliance and safety – Sustainability – Aesthetics. Benefits Your building can benefit from: – Improved safety, performance and reliability – The latest technology – Improved occupancy and leasing rates – Cost-effective equipment enhancements – Minimal building disruption – Enhanced sustainability – Superior aesthetic appeal. Simple financing Financing your upgrade is fast and easy. Schindler’s financing representative will coordinate everything with the lending bank. All you have to do is furnish the necessary legal and financial information. Decisions regarding financing qualifications are made by participating lending institutions. Schindler Proposal MKEG-BV3KFF 2021.4.1 Schindler Elevator Corporation Performance and reliability Improved performance and reliability Elevators and escalators play a vital role in a building’s services and can be a key attraction to prospective tenants. Upgrading essential elevator components can improve performance and reliability, and help ensure that your building stays competitive and keeps tenants satisfied. Expect the unexpected. As your elevators and escalators age, it will prove more difficult to ensure reliability. Units shutting down will become more common and troubleshooting will become tedious and time consuming. Scarcity of parts and the need to custom fabricate components due to possible obsolescence will extend downtime and have a negative financial impact on your bottom line. Schindler's Capital Plan recommendations below can combat this potential exposure. Performance and reliability assessment Parking Garage Elevator Equipment By Unit Manufacturer Approximate Installation Date Life Expectancy Remaining Controller Westinghouse 1990 1-3 years Machine/ Power Unit Westinghouse 1990 1-3 years Door Operator Westinghouse 1990 1-3 years Schindler Elevator Corporation Recommended annual capital upgrades Planning your investment The upgrades outlined in this document offer considerable benefits to Jefferson City Parking Garage. We recognize and understand the need to integrate this approach into your financial planning, so we offer a phased approach to upgrading your equipment. 2022 Recommendations Group Upgrade Upgrade Description Unit Qty Budget per Unit Total Budget Parking Garage Elevator Hydraulic Controller Modernization Improves reliability, leveling accuracy and floor-to-floor times with new, state-of-the-art hydraulic control system. 1 $102,000.00 $102,000.00 Parking Garage Elevator Cabin Interior (Snap Cab) To improve your overall elevator cab appearance. Your tenants / guests will immediately see the aesthetic enhancement 1 $22,000.00 $22,000.00 Totals: $124,000.00 Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX E Schematic Drawing ABCDEFGHJKLMN1234567891011122.13.44.76.17.48.7101112STRUCTURALASSOCIATESENGINEERINGKansas City, Missouri 641061000 Walnut, Suite 1570Phone: 816/421-1042Missouri Certificate of Authority: 0003961INDICATES AREA OFFULL DEPTH SLABREMOVAL & REPLACEMENTINDICATES AREA OFPARTIAL DEPTH SLABREMOVAL & REPLACEMENT Jefferson City, MO – Madison Street Garage Condition Assessment City of Jefferson City, Missouri APPENDIX F Chloride-Ion Test Results NCORPORATED 2810 Clark Avenue * St. Louis, MO 631 03-2574 a (31 4) 531 -8080 a FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 4 570 Kansas City, MO 64106 Attention: Philip Steed March 8, 2022 WO# E-01 87784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 4 of 4 REPORT OF ANALYSIS SAMPLE ID: 46 Concrete Samples, Received 03/01/2022 Project# 2021077, Jefferson City Parking Garages UNITS: mg/kg (ppm) RESULTS: SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS JP1, %"-1"1770 50 03/02/2022 JPI, 1"-2"547 50 03/02/2022 JT1, %"-1"779 50 03/02/2022 JT1 , 1 "-2"460 50 03/02/2022 JT1 , 2"-3"365 50 03/02/2022 5WP, %"-1"1410 50 03/02/2022 5WP, 1"-2"573 50 03/02/2022 5WP, 2"-3"149 50 03/02/2022 5WT, %"-1"1600 50 03/02/2022 5\/VT, 1"-2"166 50 03/02/2022 5\/VT, 2"-3"50 50 03/02/2022 4CP, %"-1"1230 50 03/02/2022 Test Method: AASHTO T-260, Method A (ton Selective Electrode) MRL: Minimum Reporting Limit AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST NOT OFFICIAL WITHOUT THE RAISED SEAL OF ST. LOUIS TESTING LABORATORIES INC SEE REVERSE FOR CONDITIONS. N C () R P O R A T E D ' 2810 Clark Avenue a St. Louis, MO 631 03-2574 a (31 4) 531 -8080 a FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 4 570 Kansas City, MO 64106 Attention: Philip Steed March 8, 2022 WO# E-0187784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 2 of 4 REPORT OF ANALYSIS SAMPLE 10: 46 Concrete Samples, Received 03/01/2022 Project# 2021077, Jefferson City Parking Garages UNITS: mg/kg (ppm) RESULTS: SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS 4CP, 1"-2"83 50 03/02/2022 4CP, 2"-3"98 50 03/02/2022 4CT, %"-1 "150 50 03/02/2022 4CT, 1"-2"<50 50 03/02/2022 4WP, %"-1 "2180 50 03/02/2022 4WP, 1"-2"1000 50 03/02/2022 4WP, 2"-3"99 50 03/02/2022 4l/\/T, %"-1"1680 50 03/02/2022 4WT, 1"-2"522 50 03/02/2022 4\/VT, 2"-3"65 50 03/02/2022 3CP, %"-1"1790 50 03/02/2022 3CP, 1"-2"146 50 03/03/2022 Test Method: AASHTO T-260, Method A (Ion Selective Electrode) MRL: Minimum Reporting Limit AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST. NOT OFFICIAL WITHOUT THE RAISED SEAL OF ST. LOUIS TESTING LABORATORIES. INC SEE REVERSE FOR CONDITIONS. N c () R P O R A T E D 281 0 Clark Avenue a St. Louis, MO 631 03-2574 - (31 4) 531 -8080 o FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 1570 Kansas City, MO 64106 March 8, 2022 WO# E-0187784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 3 of 4 Attention: Philip Steed REPORT OF ANALYSIS SAMPLE ID: 46 Concrete Samples, Received 03/OU2022 Project# 2021077, Jefferson City Parking Garages UNITS: RESULTS: mg/kg (ppm) SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS 3CP, 2"-3"<50 50 03/03/2022 3CT, %"'I"3040 50 03/03/2022 3CT, 1 "-2"249 50 03/03/2022 3CT, 2"-3"50 50 03/03/2022 3WP, '/l"-1"4790 50 03/03/2022 3\/VP, 1"-2"1550 50 03/03/2022 3WP, 2"-3"50 50 03/03/2022 3WT, %"-t"2480 50 03/03/2022 3\/VT, 1"-2"2210 50 03/03/2022 3WT, 2"-3"342 50 03/03/2022 2CP, %"-1"645 50 03/03/2022 2CP, 1"-2"82 50 03/03/2022 Test Method: AASHTO T-260, Method A (Ion Selective Electrode) MRL: Minirrium Reporting Limit AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST. NOT OFFICIAL WITHOUT THE RAISED SEAL OF ST LOUIS TESTING LABORATORIES INC SEE REVERSE FOR CONDITIONS. N C @ R P O R A T E D 2810 Clark Avenue * St. Louis, MO 631 03-2574 a (31 4) 531 -8080 * FAX (31 4) 531 -8085 Chemical, Metallurgical, Mechanical, Nondestructive, Environmental Testing, Analyses and Field Service. STRUCTURAL ENGR. ASSOCIATES, INC. 1000 Walnut, Suite 1570 Kansas City, MO 64106 Attention: Philip Steed March 8, 2022 WO# E-0187784 Invoice No. INSTL17682 P.0. No. SEA PROJ N0.2021077 Page 4 of 4 REPORT OF ANALYSIS SAMPLE ID: 46 Concrete Samples, Received 03/01/2022 Project# 2021077, Jefferson City Parking Garages UNITS: mg/kg (ppm) RESULTS: SAMPLE I.D.CHLORIDE MRL DATE OF ANALYSIS 2CP, 2"-2%"<50 50 03/04/2022 2CT, %"-1"1470 50 03/04/2022 2CT, 1 "-2"312 50 03/04/2022 2CT, 2"-3"66 50 03/04/2022 2WP, %"-1"4050 50 03/04/2022 2WP, 1"-2"1740 50 03/04/2022 2WP, 2"-3"116 50 03/04/2022 2WT, %"-1"1930 50 03/04/2022 2\/\/T, 1"-2"920 50 03/04/2022 21/\/T, 2"-3"99 50 03/04/2022 Test Method: AASHTO T-260, Method A (Ion Selective Electrode) MRL: Minimum Reporting Limit KK/vk Kimberly Kostelac, Manager Environmental Testing AN OFFICIAL COPY OF TEST REPORT WILL BE PROVIDED BY THIS LABORATORY ON REQUEST NOT OFFICIAL WITHOUT THE RAISE[) SEAL OF ST. LOUIS TESTING LABORATORIES, INC. SEE REVERSE FOR CONDITIONS Madison Street Garage Replacement Options Prepared for: City of Jefferson, Missouri October 10, 2022 Prepared by: Structural Engineering Associates, Inc. REPLACEMENT OPTIONS Madison Street Garage Jefferson City, Missouri October 10, 2022 1000 Walnut, Suite 1570 Kansas City, Missouri 64106 Phone: 816/421-1042 Fax: 816/421-1061 Jefferson City, MO – Madison Street Garage Replacement Options City of Jefferson, Missouri TABLE OF CONTENTS Introduction ......................................................................................................... 1 General Existing Garage Description .................................................................. 2 Options Development .......................................................................................... 3 Engineer’s Opinion of Probable Construction Cost ............................................. 5 Appendixes • Appendix A – Power Point Presentation • Appendix B – Consultant’s Design Narratives • Appendix C – Cost Estimate Jefferson City, MO – Madison Street Garage Replacement Options KU Medical Center – Kansas City KS 1 City of Jefferson, Missouri 1 INTRODUCTION Structural Engineering Associates, Inc. (SEA) was commissioned by the city of Jefferson, Missouri, to perform a study of options for removal and replacement of the Madison Street Garage also referred to as the Municipal Parking Garage. The garage is located at the corner of Madison Street and East Capitol Avenue. The garage consists of two separate structures which act together to provide parking as one garage. The purpose of the study was to provide information to the City of Jefferson to assess if demolition and replacement of the existing garage structure was a viable solution and if so the estimated costs for performing this work. SEA employed the services of consultants to assist in the assessment. The consultants are as follows. Architectural – BNIM Architects Mechanical, Electrical, Plumbing – Custom Engineering Parking Revenue and Control – The Parking Whisperer Civil Engineering – CFS Engineers Cost Estimating – Construction Management Resources, LLC Each consultant provided schematic narratives to assist in developing a schematic cost estimate for the options considered. Jefferson City, MO – Madison Street Garage Replacement Options KU Medical Center – Kansas City KS 2 City of Jefferson, Missouri 2 GENERAL EXISTING GARAGE DESCRIPTION The garage currently consists of two separate structures. For the purpose of this report, they will be referred to as the west structure and the east structure. Photo 1 – West Structure Photo 2 – East Structure The west structure is constructed of structural steel framing with concrete slabs. The west structure provides all vertical circulation for vehicles and pedestrians are within the west structure. The west structure is experiencing advanced deterioration throughout. The east structure is constructed of post-tensioned cast-in-place concrete pan-joist framing system with structural steel columns. No vertical circulation is present in the east structure for vehicles or pedestrians. Vertical circulation is dependent on the west structure. Jefferson City, MO – Madison Street Garage Replacement Options KU Medical Center – Kansas City KS 3 City of Jefferson, Missouri 3 OPTIONS DEVELOPMENT The existing garage configuration, location and operations were reviewed. Meetings were held with Jefferson City staff to determine goals and estimated parking capacities needed. Based on these meetings several options were developed with the following parameters. • Remove and replace west structure only and leave the east structure in place. • Remove both structures and replace with one structure within the same existing building footprint. • Remove both structures, purchase adjacent property to the east and replace with new structure. Several options were developed for consideration by Jefferson City staff. The options were reviewed and were then paired down to three of the most viable options based on vehicular circulation, access, parking stall count and safety. Based on this review it was determined that demolishing and replacing only the west structure was not a viable option. Three options based on removal of both structures and replacement with one structure were selected for further development. These three options were reviewed further and developed to provide stall counts, square footage, and circulation routes. These options were used to developed estimates of construction cost for each option. The three options considered and estimated are as follows. • Option 2C: Demolish both existing garage structures and replace with new five story single helix three bay garage. o 694 spaces (unfactored for ADA) o 324 sf per stall o 12,000 sf ground level retail o 1,000 sf staff offices o 1,000 sf storage. Jefferson City, MO – Madison Street Garage Replacement Options KU Medical Center – Kansas City KS 4 City of Jefferson, Missouri 4 • Option 2E: Demolish both existing garage structures and replace with new five level garage with express ramps. o 596 spaces o 354 sf per stall o 12,000 sf ground level retail o 1,000 sf staff offices o 2,400 sf storage • Option 3A: Demolish both existing garage structures, purchase adjacent property to the east, demolish structure on adjacent property and construct one new 3-1/4 level garage with single threaded helix. o 713 spaces o 306 sf per stall o 20,000 sf ground level retail o 1,000 sf staff offices o No storage area identified A printout of a power point presentation is included in Appendix A showing layouts with pros and cons of each option. Jefferson City, MO – Madison Street Garage Replacement Options KU Medical Center – Kansas City KS 5 City of Jefferson, Missouri 5 ENGINEER’S OPINION OF PROBABLE CONSTRUCTION COST Design narratives for each consultant were developed to aid in the development of estimates of construction cost. Design narratives are included in Appendix B of the report. An estimate of construction cost for each option was developed based on the three options above and the design narratives for each work scope. A summary of the costs for each option is as follows. OPTION COST/STALL STALLS TOTAL EST.CONSTRUCTION COST Option 2C $60,528/stall 694 $42,006,236 Option 2E $65,262/stall 596 $38,896,293 Option 3A $54,218/stall 713 $38,657,197 Option three does not include the cost of land acquisition of the eastern adjacent property which will need to be considered in the final construction cost and cost per stall. A summary and detailed cost estimate for each option is included in Appendix C of the report. The estimate is based on a post-tensioned cast-in-place parking structure with fully encapsulated post tensioning cable and anchors. The estimate summary includes options that offer deducts to the anticipated costs. These include using a pre-cast concrete structure as well as options for alternate parking and revenue control systems in the garage. As the project advances each of these options can be explored in more detail. Based on the cost estimates and the project parking spaces, Option 3A appears to be the most economical garage per stall and overall construction cost. Option 3A also provides the parkers with the most user-friendly layout. Option 3A is 3-1/4 levels which takes less time for parkers to enter and exit the garage. The estimated construction cost for this option does not include cost of land acquisition of the adjacent property. Jefferson City, MO – Madison Street Garage Replacement Options KU Medical Center – Kansas City KS 6 City of Jefferson, Missouri 6 A post-tensioned cast-in-place structure is recommended due to reduced maintenance cost of re- caulking the garage on a relatively frequent cycle. . Jefferson City, MO – Madison Street Garage Replacement Options City of Jefferson City, Missouri APPENDIX A Power Point Presentation 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM Jefferson City Madison Street Garage | design studies 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 2 SITE BOUNDARY 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 2C THREE BAY, SLOPED DECKS WITH PARKED ENDS ≈147 SPACES PER LEVEL 5 LEVELS ≈ 694 SPACES (UNFACTORED FOR ADA, ETC.) EFFICIENCY: 324 SF / STALL - 12,000 SF GROUND LEVEL RETAIL. - 1,000 SF PARKING SERVICES OFFICES. - 1,000 SF PARKING SERVICES STORAGE. PROS: - EFFICIENT SPACE LAYOUT - PARKING ON LOW SLOPES <4%. (3.78%) CONS: - MOST PARKING IS ON SLOPED RAMPS. - SLOPED SLAB EDGE ALONG NORTH AND SOUTH ELEVATIONS IS LESS CONDUCIVE TO GROUND LEVEL RETAIL. 2C PARKING OFFICES MADISON STREET ENTRANCEPARKING STORAGE GROUND LEVEL RETAIL 1 2 3 4 5 CAPITO L A V E MADISON STREET 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM DN UP DN RETAIL OFFICESTORAGEDN UP UP DN UP CAPITOL AVE MADISON STREET2C PARKING OFFICES MADISON STREET ENTRANCE 3 4 5 2 PARKING STORAGE GROUND LEVEL RETAIL 1 DIAGONAL STREET PARKING, OR RETAIL OUTDOOR SPACE SCALE: 1” = 50’ 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM 2E PARKING OFFICES MADISON STREET ENTRANCE PARKING STORAGE GROUND LEVEL RETAIL 1 2 3 4 5 OPTION 2E, THREE BAY, FLAT DECK, EXPRESS RAMPS WITH 90 DEGREE PARKING ≈131 SPACES PER LEVEL 5 LEVELS ≈ 596 SPACES EFFICIENCY: 354 SF / STALL - 12,000 SF GROUND LEVEL RETAIL. - 1,000 SF PARKING SERVICES OFFICES. - 2,400 SF PARKING SERVICES STORAGE. PROS: - QUICK VERTICAL VEHICULAR CIRCULATION. - FLAT PARKING DECKS PROVIDE GOOD VISIBILITY AND PASSIVE SECURITY. - CAN ACCOMODATE GROUND LEVEL RETAIL. CONS: - LOWER EFFICIENCY CAPITOL ENTRANCE CAPITO L A V E MADISON STREET 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM DN RETAIL OFFICESTORAGEDN UP CAPITOL AVE MADISON STREET2E DIAGONAL STREET PARKING, OR RETAIL OUTDOOR SPACE UP PARKING OFFICES MADISON STREET ENTRANCE PARKING STORAGE 1 2 3 4 5 CAPITOL ENTRANCE SCALE: 1” = 50’ 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 3 SITE BOUNDARY INCLUDES LAND ACQUISITION 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM 3A OPTION 3A, THREE BAY, FLAT DECK, PARKED RAMPS WITH 90 DEGREE PARKING ≈261 SPACES PER LEVEL 3.25 LEVELS ≈ 713 SPACES EFFICIENCY: 306 SF / STALL - 20,000 SF GROUND LEVEL RETAIL SPACE - 1,000 SF PARKING SERVICES OFFICE PROS: - MOSTLY FLAT PARKING DECKS PROVIDE GOOD VISIBILITY AND PASSIVE SECURITY. - LOWER GARAGE HEIGHT FITS BETTER WITHIN NEIGHBORHOOD CONTEXT. - LOW SLOPE OF PARKED RAMP. - CAN ACCOMODATE LARGE GROUND LEVEL RETAIL. - LARGER FOOTPRINT INCREASES EFFICIENCY. CONS: - LAND ACQUISITION COST PARKING OFFICES MADISON STREET ENTRANCE GROUND LEVEL RETAIL 1 2 3 CAPITOL ENTRANCE CAPI T O L A V E MADIS O N STREET 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM DN RETAIL OFFICEDNUP CAPITOL AVE MADISON STREET3A DIAGONAL STREET PARKING, OR RETAIL OUTDOOR SPACE UP DN RETAIL DIAGONAL STREET PARKING, OR RETAIL OUTDOOR SPACE SCALE: 1” = 50’ 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 2E - facade design intent | view from Madison and Capitol 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 2E - facade design intent | view at Capitol vehicular entry 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 2E - facade design intent | view at Capitol retail space. 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM OPTION 2E - facade design intent | view at Madison entry and retail space. 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM Precedent examples 2460 Pershing Suite 100 Kansas City MO 64108 816 783 1500 bnim.com BNIM Project No. 22002.00 | 5 19 2022 Copyright © 2022 BNIM Precedent examples Jefferson City, MO – Madison Street Garage Replacement Options City of Jefferson City, Missouri APPENDIX B Consultant’s Design Narratives Architectural .................................................................................................. 1 – 3 Structural ....................................................................................................... 1 – 2 Civil ............................................................................................................... 1 – 2 Parking Whisperer ......................................................................................... 1 – 3 Electrical Option 2C ...................................................................................... 1 – 2 Electrical Option 2E ...................................................................................... 1 – 2 Electrical Option 3A ...................................................................................... 1 – 2 Mechanical Option 2C .................................................................................. 1 – 1 Mechanical Option 2E .................................................................................. 1 – 1 Mechanical Option 3A .................................................................................. 1 – 1 Plumbing Option 2C ..................................................................................... 1 – 2 Plumbing Option 2E ..................................................................................... 1 – 2 Plumbing Option 3A ..................................................................................... 1 – 2 Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Architectural 1 Jefferson City Madison Street Garage – New Build Options June 7, 2022 Architectural Narrative All options: The Madison Street vehicular entrance is provided with one entry lane, one exit lane, and one swing gate (combined entry/exit.) The Capital Avenue vehicular entrance is provided with one entry lane and one exit lane. Full depth (60’) retail space is provided along Capital Avenue, extending around the corner to Madison Street. This sixty-foot dimension allows for reasonable retail space depth, and a back- of-house corridor for service entry, mechanical services, and waste management. Space for parking management offices is provided along Madison Street. These windows along Madison help to enhance the garage appearance at grade, improve the pedestrian experience, and create a pleasant office environment. Parking spaces are sized comfortably with 9’x18’ spaces and 25’ drive aisles. This is a very high level of service garage and gives the owner flexibility to restripe to provide additional spaces if desired during the design process. Adequate space is allocated along Capital Avenue to allow either enhanced sidewalk widths with outdoor space for retail, or angled street parking for retail. It is possible that both uses of this public outdoor space could be accommodated, giving a variety of assets to the retail spaces to allow diversity of uses and increase the likelihood of leasing. Stairs in the three corners meet travel distance egress requirements. The two expressed stair towers along Capital Avenue provide intuitive wayfinding and add a sense of passive security through their visually open designs. Stair towers are provided with enclosure at the roof level to prevent water intrusion and improve long term durability. All levels are enclosed to improve stair durability but are left open toward the interior of the garage for ease of access and reduced maintenance (fewer doors.) The stairs are also left open at the ground level and discharge directly to grade at the exterior of the garage. One elevator is provided at the Capital / Madison corner and meets the requirements of the building code. An additional elevator could be provided at the southern Madison stair tower. Additional study of pedestrian traffic patterns is needed to justify the additional first cost and long-term maintenance cost. Bay spacing of 62’ was utilized for all options and could be shortened to reduce cost. Due to the early planning nature of this exercise, larger sizes were used to allow flexibility in the final design. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Architectural 2 We propose proportions, materials, and textures that complement and enhance the look and feel of the neighborhood. Utilizing brick, precast concrete with a stone appearance, and subtle metal finishes, the garage should feel like a new destination while complementing the neighboring buildings and businesses. Stair towers located at the corners of the garage should feel open and safe, but with protection from precipitation to enhance durability of the structure. The elevator is glass-backed to provide an enhanced user experience and passive security. The design of the ground floor and streetscape minimizes the bulk of the garage structure and focuses on the transparency and pedestrian experience of the ground floor. Canopies are used as intuitive wayfinding elements to signify vehicular and pedestrian entry points. Upper garage floors openings are sized for proper ventilation, vehicle screening, and structural efficiency. The design rendered depicts option 2E and is representative of our design intent for each of the options. We look forward to the opportunity to work with the city and neighborhood to achieve a cohesive design. Option 2C: 1. Demolition of the existing garage structure. 2. This option maintains a balanced site. This option utilizes existing basement space for additional parking. 3. Basement parking requires ventilation system and dry pipe fire sprinkler system. 4. Construct new single helix three bay garage. Sloped parked ramps (4.6%) are well below the code maximum of 6.66% and provides a comfortable walking surface for patrons. Accessible parking spaces must be located on the end bay landings to comply with accessible route requirements. 5. Both the capital Avenue and Madison garage entrances are fully flat, providing ease of engagement with parking control equipment. The internal sloping of the ramps resolves the grade change from Madison Street to Capital Avenue. Option 2E: 1. Demolition of the existing garage structure. 2. This option will likely require soil import. 3. This option has no basement (no enclosed garage) and eliminates associated costs (dry-pipe fire suppression system, ventilation.) 4. Construct new flat parked deck garage with express ramps along the east elevation. 5. Entrance access drive at capital entrance has a flat landing at parking equipment with an 11% express ramp up to the ground level parking. 6. Entrance along Madison Street is moved nearer to intersection to lower the ground level of parking and reduce soil import. Entrance remains 115’ from intersection. 7. The use of express ramps with parking counters indicating number of available spaces per level results in the highest level of service of all the options with the shortest drive distance required to every space within the garage. 8. Flat decks at the building perimeter allow for simple architectural resolution at exterior facades. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Architectural 3 9. Space east of the capital street entrance and below the express ramp is available for parking services storage. Ample space is available for salt storage, traffic control equipment, and maintenance vehicles (sidewalk sweepers, garage sweeper, etc.) Option 3A: 1. This option requires demolition of the existing garage structure and acquisition of the adjacent parcels. 2. This option should maintain a balanced site. Option utilizes existing basement space for additional parking. 3. Basement parking requires ventilation system and dry pipe fire sprinkler system. 4. Construct a new three bay garage. Two of the three bays act as a single threaded helix, with one bay flat, and the other bay sloped for a portion of its length. The third bay is constructed as an additional flat deck accessed via the single threaded helix. 5. This option has long-enough bays that alternate interior ramp arrangements could be further studied. A double threaded helix ramp system with center cross-over aisles could be developed to allow redundant ramp access within the garage. Parked ramp slopes would be steeper but would allow ramp maintenance in the future without interruption of garage access. 6. Both the capital Avenue and Madison garage entrances are fully flat, providing ease of engagement with parking control equipment. 7. Flat decks at the building perimeter allow for simple architectural resolution at exterior facades. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Narrative Design Structural 1 New Parking Garage Jefferson City, Missouri STRUCTURAL CRITERIA AND FRAMING DESCRIPTION A. Structural Criteria: 1. Building Codes: 2015 International Building Code 2. Risk Category: II 3. Design Loads: • Live Loads: Offices 50 psf Retail/restaurant 100 psf Stairs & exits 100 psf Parking garage 40 psf • Wind Loads: Basic wind speed 115 mph Wind importance factor (Iw) 1.00 Wind exposure B B. Structural System: Foundation and Substructure. 1. It is anticipated that the columns and walls for the proposed structure would be supported by drilled straight-shaft piers extended to the limestone with a minimum net allowable bearing pressure of 40 -ksf. Grade beams will be provided under all load bearing/structural walls to transfer loads to the drilled piers. 2. Floor Slab: Slabs on grade typically will be 5” thick at parking garage and 6” at office or retail/restaurant. Slabs will be constructed with 4000-psi concrete, reinforced with 6X6-W2.9XW2.9 welded wire fabric, and placed on compacted granular fill. C. Structural System for the Parking Garage. Two different type of framing systems are considered for the elevated decks. Option I: Cast-In-Place Post-Tensioned Concrete Option II: Precast Double-Tee with Cast-In-Place Topping Slab Option I: This option will require a minimum of 5 ½”- thick concrete slab spanning between beams spaced at 20’-0” o.c. typically. Both slabs and beams are post-tensioned as well as reinforced with mild steel. Lateral loads for this option will be resisted by moment frames which include concrete beams and columns. No shear walls are required for this option. Option II: The garage structure for this option will be framed with precast double tee spanning between inverted tees at interior columns and spandrel panels at Jefferson City, MO – Madison Street Garage Replacement Options Consultant Narrative Design Structural 2 exterior walls. Additionally, a minimum of 3”-thick concrete topping slab will be placed as part of the framing system for this option. Lateral loads for this option will be resisted by precast concrete shear walls. D. Advantages and Disadvantages of Options I and II. Advantages of Option I: 1. Garage is more open with no shear walls. 2. Easier to slope because concrete is poured monolithic. 3. Less joints in the slab reduces future maintenance cost. Disadvantages of Option I: 1. Slabs may be subjected to significant amount of cracks due to shrinkage and elastic shortening. This will require routing and sealing all cracks. Fiber mesh is usually added to concrete mix to reduce cracks. Fiber mesh would contribute to slightly higher cost. 2. Option I may also cost higher than Option II in order to obtain corrosion resistance. Typical corrosion resistance measures include using silica fume concrete, using encapsulated post-tensioned system, and providing epoxy-coated reinforcing steel. Advantages of Option II: 1. This option provides faster construction, which could save two to three months. 2. Less shrinkage cracks in the slab because most of shrinkage takes place prior to installation. 3. Provides higher quality of concrete products. 4. Exterior railing can be cast as part of spandrel panels. 5. Fewer columns are required. Disadvantages of Option II: 1. Shear walls are needed for lateral load resistance which creates less open structure and reduces visibility. 2. This option will require more joints in the slab. Joints are provided at each panel. Joints are then sealed with waterproofing sealants and would have to be replaced every 8 to 10 years. This would add future maintenance cost. 3. Differential camber between the precast double tees causes problems during installation as the connection plates do not align. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Civil 1 Jefferson City Madison Street Garage Civil Design Write-up for options Option 2C The civil design for this option is straight forward. No traffic analysis or study is anticipated for this option because this option maintains the current entrance and exit points of the existing structure. The civil work related to this option will be coordinating the access to public utility infrastructure. With a portion of the structure being underground, it is possible some of the surrounding infrastructure will be impacted in the construction process. The sidewalk on Madison Street is 13 feet wide and is constructed with decorative concrete. Also, along Madison Street, there are six (6) nice sized trees in tree wells in the sidewalk. Should those be impacted with the construction of the garage, it will be necessary to replace those. Along Capitol Avenue the sidewalk is 13 feet wide, and it is constructed of plain concrete. There are 3 trees in tree wells within the limits of the parking garage. Other appurtenances along the sidewalk that could be impacted by constructing include a total of seven (7) decorative streetlights, two (2) dual parking meters and one (1) single parking meter. These are located close to the curb line and could be noted as remove during construction and replace. This option does not encroach on the existing alleyway where a large majority of utilities are located. Access to electrical, water, storm and sanitary will, in large part, stay in their current locations. With the proposed retail space in this option additional connections and meters will be needed for proposed utilities. The proposed water and sanitary connection sizes of 2 inches and 6 inches will not require any upgrades to the mains they will be connecting to. During construction, care should be taken to not disturb the curb inlet on Madison Street at Capitol Avenue. Option 2E The civil design for this option is also straight forward. It will be necessary to evaluate the impact of moving the entrance/exit point of the garage on Madison Street closer to the intersection of Madison Street and Capitol Avenue. The civil work related to this option will be coordinating the access to public utility infrastructure. With a portion of the structure being underground, it is possible some of the surrounding infrastructure will be impacted in the construction process. The sidewalk on Madison Street is 13 feet wide and is constructed with decorative concrete. Also, along Madison Street, there are six (6) nice sized trees in tree wells in the sidewalk. Should those be impacted with the construction of the garage, it will be necessary to replace those. Along Capitol Avenue the sidewalk is 13 feet wide, and it is constructed of plain concrete. There are 3 trees in tree wells within the limits of the parking garage. Other appurtenances along the sidewalk that could be impacted by constructing include a total of seven (7) decorative streetlights, two (2) dual parking meters and one (1) single parking meter. These are located close to the curb line and could be noted as remove during construction and replace. This option does not encroach on the existing alleyway where a large majority of utilities are located. Access to electrical, water, storm and sanitary will, in large part, stay in their current locations. With the proposed retail space in this option additional connections and meters will Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Civil 2 be needed for proposed utilities. The proposed water and sanitary connection sizes of 2 inches and 6 inches will not require any upgrades to the mains they will be connecting to. During construction, care should be taken to not disturb the curb inlet on Madison Street at Capitol Avenue. Option 3A The civil design for this option is straight forward. No traffic analysis or study is anticipated for this option because this option maintains the current entrance and exit points of the existing structure. The civil work related to this option will be coordinating the access to public utility infrastructure. With a portion of the structure being underground, it is possible some of the surrounding infrastructure will be impacted in the construction process. The sidewalk on Madison Street is 13 feet wide and is constructed with decorative concrete. Also, along Madison Street, there are six (6) nice sized trees in tree wells in the sidewalk. Should those be impacted with the construction of the garage, it will be necessary to replace those. Along Capitol Avenue the sidewalk is 13 feet wide, and it is constructed of plain concrete except at the corner of Capitol and Monroe, which is constructed with decorative concrete. There are 9 trees in tree wells and 2 vacant tree wells within the limits of this option. Along Monroe Street, the sidewalk is 13 feet wide as well and there are four (4) trees in tree wells within the limits of the garage. Other appurtenances along the sidewalk that could be impacted by construction include a total of twelve (12) decorative streetlights, seven (7) dual parking meters and two (2) single parking meter. These are located close to the curb line and could be noted as remove during construction and replace. This option does not encroach on the existing alleyway where a large majority of utilities are located. Access to electrical, water, storm and sanitary will, in large part, stay in their current locations. With the proposed retail space in this option additional connections and meters will be needed for proposed utilities. The proposed water and sanitary connection sizes of 2 inches and 6 inches will not require any upgrades to the mains they will be connecting to. During construction, care should be taken to not disturb the curb inlets on Madison Street at Capitol Avenue, on Capitol Avenue at Monroe Street and on Monroe Street at Capitol Avenue. There is a grated inlet at the corner of the Commerce Way and Monroe Street near the existing News Tribune Building. This area inlet will need to be replaced if it is impacted by the construction of this parking garage option. Diagonal Parking Option Each option above has the option of providing diagonal parking along Capitol Avenue for the length of the garage. For options 2C and 2E the estimated number of parking spaces are between 8 and 10 depending on the design and on the number of handicap spaces that will be provided. Additional construction items would be curb and gutter and striping of the spaces. For option 3A the estimated number of spaces are between 18 and 20. If diagonal parking is selected then the amount of sidewalk, number of street trees and parking meters would need to be adjusted accordingly. P a g e | 1 Options 2C, 2E, and 3A – New Garage The parking operations equipment for the proposed garage should pursue one of two paths. The two initial decisions are gated or gateless operation. The vast majority of parking garages in the US are gated, with gateless being the new preferred option sweeping the country. There are significant advantages to each method. For purposes of this narrative, we do not intend to recommend one option over the other. We will provide core information for both until given other guidance. Either system will consist of the following: 1. Cloud-based PARC (Parking Access Revenue Control System) will provide gate (or gateless) authorization, provide auditing and management tools, and will be partnered with: a. Monthly Billing software b. Card or other Credential Access management c. Master controller for the entire system d. Gate or gateless interface 2. License Plate Recognition (LPR) or AVI or proximity card system 3. App-based or app-less payment options 4. Potentially kiosk or in-lane payment centers 5. Interface with security cameras (optional) 6. Training 7. Spare Parts Inventory 8. Gates (if gated) 9. Potential nested* area (optional, additional gates) 10. Potential space available counts per level (may be augmented with a PGS – Parking guidance system) to provide easy-to-locate spaces 11. Signage 12. In-ground Loops (optional with LPR) 13. Exterior facility space availability displays (optional) *Nested Area – this is a garage within the garage, utilizing gates and readers to create a designated area for a unique group of parkers. This could be one employer, one government entity, or other special needs, usually incurring a premium rate or mandated in an office lease or other agreement. Based upon the architect's rendering, there are expected to be: • Entry on Madison • Entry on Capitol P a g e | 2 • Possible additional lane (reversible) on Madison entry • Each entry lane may include a gate, ticket dispenser, and in-ground loop (unless gateless) • Each entry lane may consist of a gate, a ticket gobbler and processor, and an in -ground loop (unless gateless) • The proposed reversible lane would feature two gates, one ticket dispenser, one processor, and two in-ground loops; recommend a red light/green light display. • Optional kiosks or pay station at the main level near elevators • Intercoms at each equipment touch point • Potential two-way audio, two-way video terminals to reduce staffing costs or fully automate facility (optional) • LPR systems would require a minimum of one camera per lane and potential per level based on the need for accurate occupancy counts After an initial interview with the garage operating team, the determination of gated or gateless Request for Proposal (or both) would lead to an equipment RFP. We would create specific specifications and solicit as many as 5-10 proposals. The RFP would require the following process once the initial approval and process is approved while following city procurement policy and industry best practices: • RFP document and process approved • RFP posted/sent to qualified bidders and those responding to a public posting • Mandatory pre-bid • Questions • Answers • RFP submissions • Interviews (if needed) • Finalist and FABO (Final and Best Offer) not advertised • Contract Recommendation • Contract Award • Contract negotiation (minimal due to the RFP specifications) • Contract signature • Initiate work order (sample - 20% hold back reserve). We will follow the city’s standard retainage policy and procurement rules • Installation – Training – Certification - Payment • Initiate operation Cost Estimate (Based on 2022 recent similar RFPs in the Midwest US) P a g e | 3 • Assuming all options noted above are utilized, the projected range for equipment, training, and all soft costs for purchase are: o Gated Operation without nest $725,000 o Gated Operation with one (1) nest $800,000 o Gateless Operation without nest $325,000 o Gateless Operation (main entry gateless) with one (gated) nest $600,000 All the Best, John Oglesby, P.C.C. Your Customers' First and Last Impression! 303.884.3710 CEO@ParkingWhisperer.com http://parkingwhisperer.com Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Electrical – Option 2C 1 Jefferson City Madison Street Parking Garage Option 2C: Three Bay, sloped decks with Backed ends Narrative for Schematic design for the Electrical System Electrical Service New 1600 amp, 3-phase 120/208V electrical main distribution panel will be located inside the main electrical room which will be located on the ground level that serve power for all the new led lights, new receptacles located on all 5 levels, parking offices, parking storage and retail space for the Jefferson City Madison Street parking garage building (239,004 square feet). New 200 amp, 120/ 208V, 3 phase electrical panel in Nema 3R enclosure will be located on each parking garage level and will provide power for all the LED lights and receptacles located in the garage level. Provide 208V, 3 phase power for the one elevator located in the Jefferson City Madison parking garage building. Provide 40 amp, 208V, 1 phase power for 10 electric car charging stations. Provide 120, 1 phase power for five revenue control stations located at the Madison Street entrance and at the Capitol Street entrance. Level 1 thru level 5 parking garage Lighting/Controls LED Light fixtures will be provided in level 1 thru level 4 for the parking garage building. Level 5 will be provided with led pole lights that will be located on the roof level. The stairs are provided with 4’ LED wall mounted light fixtures with integral occupancy sensor for lighting control. LED light fixtures for level 1 thru level 4 to be controlled with integral occupancy sensor and day daylight sensor. LED pole light fixtures for level 5 to be controlled thru photocell on, photocell off. All the garage lights will be fed thru 200-amp, 120/208V electrical panel located on each level. The lighting level for the parking garage per IES recommendation are: • Vehicle entry areas to garage 50 foot-candles minimum during the day • Vehicle entry areas to garage 1 foot-candle minimum during the night • Ramps 2 foot-candles minimum during the day • Ramps 1 foot-candle minimum during the night • Stairways 2 foot-candles minimum • Remaining garage parking areas 1 foot-candle minimum Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Electrical – Option 2C 2 Level 1 thru level 4 Parking garage-Power Weather proof GFCI duplex receptacles will be provided in level 1 thru level 4 for the parking garage building and the receptacles will be fed thru 200-amp, 120/208V electrical panel located on each level. Retail space Ground level- Lighting and Power General receptacle and general LED lighting will be provided for the ground level retail space (12,062 square feet) for future tenant finish. New 400-amp, 3 phase 120/208V electrical panel will be provided for the retail space. Each future tenant in the retail space will have its own electric meter. Power and connections to be provided for HVAC and plumbing equipment that serve the retail space in the ground level. Code compliant fire alarm system to be provided for the retail space. Parking offices- Lighting and Power General receptacle and general LED lighting will be provided for the parking offices (1,116 square feet) located in the ground level. A new 100-amp, 3 phase 120/208V electrical panel will be provided for the parking offices located on the ground level. The 100-amp panel for the parking offices will be fed from the 1600-amp main distribution panel located in the main electrical room in the ground level. Power and connections to be provided for HVAC and plumbing equipment that serve the parking offices in the ground level. Parking storage- Lighting and Power General receptacle and general LED lighting will be provided for the parking storage space (1,116 square feet) located in the ground level. A new 100-amp, 3 phase 120/208V electrical panel will be provided for the storage located on the ground level. The 100-amp electrical panel will be fed from the 1600-amp main distribution panel located in the electrical room in the ground level. Power and connections to be provided for electric heater and heat trace located in the parking storage in the ground level. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Electrical – Option 2E 1 Jefferson City Madison Street Parking Garage Option 2E: Three Bay, flat deck, express ramps with 90-degree parking Narrative for Schematic design for the Electrical System Electrical Service New 1600 amp, 3-phase 120/208V electrical main distribution panel will be located inside the main electrical room which will be located on the ground level that serve power for all the new led lights, new receptacles located on all 5 levels, parking offices, parking storage and retail space for the Jefferson City Madison Street parking garage building (226,895 square feet). New 200 amp, 120/ 208V, 3 phase electrical panel in Nema 3R enclosure will be located on each parking garage level and will provide power for all the LED lights and receptacles located in the garage level. Provide 208V, 3 phase power for the one elevator located in the Jefferson City Madison parking garage building. Provide 40 amp, 208V, 1 phase power for 10 electric car charging stations. Provide 120, 1 phase power for five revenue control stations located at the Madison Street entrance and at the Capitol Street entrance. Level 1 thru level 5 parking garage Lighting/Controls LED Light fixtures will be provided in level 1 thru level 4 for the parking garage building. Level 5 will be provided with led pole lights that will be located on the roof level. The stairs are provided with 4’ LED wall mounted light fixtures with integral occupancy sensor for lighting control. LED light fixtures for level 1 thru level 4 to be controlled with integral occupancy sensor and day daylight sensor. LED pole light fixtures for level 5 to be controlled thru photocell on, photocell off. All the garage lights will be fed thru 200-amp, 120/208V electrical panel located on each level. The lighting levels for the parking garage per IES recommendation are: • Vehicle entry areas to garage 50 foot-candles minimum during the day • Vehicle entry areas to garage 1 foot-candle minimum during the night • Ramps 2 foot-candles minimum during the day • Ramps 1 foot-candle minimum during the night • Stairways 2 foot-candles minimum • Remaining garage parking areas 1 foot-candle minimum Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Electrical – Option 2E 2 Level 1 thru level 4 Parking garage-Power Weather proof GFCI duplex receptacles will be provided in level 1 thru level 4 for the parking garage building and the receptacles will be fed thru 200-amp, 120/208V electrical panel located on each level. Retail space Ground level- Lighting and Power General receptacle and general LED lighting will be provided for the ground level retail space (12,062 square feet) for future tenant finish. New 400-amp, 3 phase 120/208V electrical panel will be provided for the retail space. Each future tenant in the retail space will have its own electric meter. Power and connections to be provided for HVAC and plumbing equipment that serve the retail space in the ground level. Code compliant fire alarm system to be provided for the retail space. Parking offices- Lighting and Power General receptacle and general LED lighting will be provided for the parking offices (1,035 square feet) located in the ground level. A new 100-amp, 3 phase 120/208V electrical panel will be provided for the parking offices located on the ground level. The 100-amp panel for the parking offices will be fed from the 1600-amp main distribution panel located in the main electrical room in the ground level. Power and connections to be provided for HVAC and plumbing equipment that serve the parking offices in the ground level. Parking storage- Lighting and Power General receptacle and general LED lighting will be provided for the parking storage space (2,600 square feet) located in the ground level. A new 100-amp, 3 phase 120/208V electrical panel will be provided for the storage located on the ground level. The 100-amp electrical panel will be fed from the 1600-amp main distribution panel located in the electrical room in the ground level. Power and connections to be provided for electric heater and heat trace located in the parking storage in the ground level. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Electrical – Option 3A 1 Jefferson City Madison Street Parking Garage Option 3A: Three Bay, flat deck, parked ramps with 90-degree parking Narrative for Schematic design for the Electrical System Electrical Service New 1600 amp, 3-phase 120/208V electrical main distribution panel will be located inside the main electrical room which will be located on the ground level that serve power for all the new led lights, new receptacles located on all 3 levels, parking offices and retail space for the Jefferson City Madison Street parking garage building (239,956 square feet). New 200 amp, 120/ 208V, 3 phase electrical panel in Nema 3R enclosure will be located on each parking garage level and will provide power for all the LED lights and receptacles located in the garage level. Provide 208V, 3 phase power for the one elevator located in the Jefferson City Madison parking garage building. Provide 40 amp, 208V, 1 phase power for 10 electric car charging stations. Provide 120, 1 phase power for five revenue control stations located at the Madison Street entrance and at the Capitol Street entrance. Level 1 thru level 3 parking garage Lighting/Controls LED Light fixtures will be provided in level 1 thru level 2 for the parking garage building. Level 3 will be provided with led pole lights that will be located on the roof level. The stairs are provided with 4’ LED wall mounted light fixtures with integral occupancy sensor for lighting control. LED light fixtures for level 1 and level 2 to be controlled with integral occupancy sensor and day daylight sensor. LED pole light fixtures for level 3 to be controlled thru photocell on, photocell off. All the garage lights will be fed thru 200-amp, 120/208V electrical panel located on each level. The lighting levels for the parking garage per IES recommendation are: • Vehicle entry areas to garage 50 foot-candles minimum during the day • Vehicle entry areas to garage 1 foot-candle minimum during the night • Ramps 2 foot-candles minimum during the day • Ramps 1 foot-candle minimum during the night • Stairways 2 foot-candles minimum • Remaining garage parking areas 1 foot-candle minimum Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Electrical – Option 3A 2 Level 1 thru level 3 Parking garage-Power Weather proof GFCI duplex receptacles will be provided in level 1 thru level 3 for the parking garage building and the receptacles will be fed thru 200-amp, 120/208V electrical panel located on each level. Retail space Ground level- Lighting and Power General receptacle and general LED lighting will be provided for the ground level retail space (20,612 square feet) for future tenant finish. New 400-amp, 3 phase 120/208V electrical panel will be provided for the retail space. Each future tenant in the retail space will have its own electric meter. Power and connections to be provided for HVAC and plumbing equipment that serve the retail space in the ground level. Code compliant fire alarm system to be provided for the retail space. Parking offices- Lighting and Power General receptacle and general LED lighting will be provided for the parking offices (1,088 square feet) located in the ground level. A new 100-amp, 3 phase 120/208V electrical panel will be provided for the parking offices located on the ground level. The 100-amp panel for the parking offices will be fed from the 1600-amp main distribution panel located in the main electrical room in the ground level. Power and connections to be provided for HVAC and plumbing equipment that serve the parking offices in the ground level. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Mechanical – Option 2C 1 Jefferson City Madison Street Parking Garage Option 2C: Three Bay, sloped decks with Backed ends Narrative for Schematic design for the Mechanical Systems Parking Garage Below grade parking areas will be ventilated with exhaust fans and monitored for carbon monoxide. Stairs will have thermostatically controlled exhaust fans. The elevator shaft will have a continuously operated exhaust fan. No ice melt systems are proposed. Storage Room The room will be ventilated with an exhaust fan and heated with electric unit heaters. Office The office will be conditioned with split DX heat pumps. The outdoor unit will discharge horizontally and be mounted overhead in the garage. The indoor fan coil units will utilize a full air economizer for ventilation and outdoor air cooling when economical. This economizer will draw outdoor air from building perimeter, not from the garage. Backup electric resistance heat will be utilized for extreme weather. Each restroom will have an exhaust fan controlled by the room’s lighting circuit with an off-delay relay to keep the fan operating for several minutes after vacancy. The private restroom with transfer makeup air from adjacent office space. The public restroom may require supply air or a unit heater for conditioning. Retail Spaces The HVAC systems for the Retail Space will be designed after tenant selection based upon tenant’s specific requirements. Temporary space heating will be provided to prevent freezing damage pending tenant finish. Codes Governing Construction Construction will comply with the following codes along with their Jefferson City Amendments. • Americans with Disabilities Act (ADA) Design Standards for Accessible Design • International Building Code, 2015 • International Fire Code, 2015 • International Mechanical Code, 2015 • International Plumbing Code, 2015 • National Electrical Code, 2014 Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Mechanical – Option 2E 1 Jefferson City Madison Street Parking Garage Option 2E: Three Bay, flat deck, express ramps with 90-degree parking Narrative for Schematic design for the Mechanical Systems Parking Garage Below grade parking areas will be ventilated with exhaust fans and monitored for carbon monoxide. Stairs will have thermostatically controlled exhaust fans. The elevator shaft will have a continuously operated exhaust fan. No ice melt systems are proposed. Storage Room The room will be ventilated with an exhaust fan and heated with electric unit heaters. Office The office will be conditioned with split DX heat pumps. The outdoor unit will discharge horizontally and be mounted overhead in the garage. The indoor fan coil units will utilize a full air economizer for ventilation and outdoor air cooling when economical. This economizer will draw outdoor air from building perimeter, not from the garage. Backup electric resistance heat will be utilized for extreme weather. Each restroom will have an exhaust fan controlled by the room’s lighting circuit with an off-delay relay to keep the fan operating for several minutes after vacancy. The private restroom with transfer makeup air from adjacent office space. The public restroom may require supply air or a unit heater for conditioning. Retail Spaces The HVAC systems for the Retail Space will be designed after tenant selection based upon tenant’s specific requirements. Temporary space heating will be provided to prevent freezing damage pending tenant finish. Codes Governing Construction Construction will comply with the following codes along with their Jefferson City Amendments. • Americans with Disabilities Act (ADA) Design Standards for Accessible Design • International Building Code, 2015 • International Fire Code, 2015 • International Mechanical Code, 2015 • International Plumbing Code, 2015 • National Electrical Code, 2014 Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Mechanical – Option 3A 1 Jefferson City Madison Street Parking Garage Option 3A: Three Bay, flat deck, parked ramps with 90-degree parking Narrative for Schematic design for the Mechanical Systems Parking Garage Below grade parking areas will be ventilated with exhaust fans and monitored for carbon monoxide. Stairs will have thermostatically controlled exhaust fans. The elevator shaft will have a continuously operated exhaust fan. No ice melt systems are proposed. Storage Room The room will be ventilated with an exhaust fan and heated with electric unit heaters. Office The office will be conditioned with split DX heat pumps. The outdoor unit will discharge horizontally and be mounted overhead in the garage. The indoor fan coil units will utilize a full air economizer for ventilation and outdoor air cooling when economical. This economizer will draw outdoor air from building perimeter, not from the garage. Backup electric resistance heat will be utilized for extreme weather. Each restroom will have an exhaust fan controlled by the room’s lighting circuit with an off-delay relay to keep the fan operating for several minutes after vacancy. The private restroom with transfer makeup air from adjacent office space. The public restroom may require supply air or a unit heater for conditioning. Retail Spaces The HVAC systems for the Retail Space will be designed after tenant selection based upon tenant’s specific requirements. Temporary space heating will be provided to prevent freezing damage pending tenant finish. Codes Governing Construction Construction will comply with the following codes along with their Jefferson City Amendments. • Americans with Disabilities Act (ADA) Design Standards for Accessible Design • International Building Code, 2015 • International Fire Code, 2015 • International Mechanical Code, 2015 • International Plumbing Code, 2015 • National Electrical Code, 2014 Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Plumbing – Option 2C 1 Jefferson City Madison Street Parking Garage Option 2C: Three Bay, sloped decks with Backed ends Narrative for Schematic Design for the Plumbing Systems Domestic Water Service A single 2-inch domestic-water connection is proposed. The loads for this service include: • Parking Garage and sidewalk washdown hydrants for complete coverage with 100-foot hoses • Storage Room hydrant • Office Restrooms, one public and one private with each single occupancy • Office Breakroom sink and refrigerator • Office Janitor’s Closet mop sink • Office drinking fountains, one public and one private • Retail Space future tenant requirements, possibly restaurants Point-of-use electric water heaters are proposed. Piping exposed to freezing conditions will be heat traced and insulated. A separate meter could be installed for a high consuming tenant such as a restaurant. Sanitary Waste Service A single 6-inch sanitary-sewer connection at Capitol Avenue is proposed. The loads for this sewer include: • Parking Garage floor drains through a sand and oil separator • Parking Garage elevator-shaft pit drain with oil separator • Storage Room floor drains • Office Restrooms, one public and one private with each single occupancy • Office Breakroom sink • Office Janitor’s Closet mop sink • Office drinking fountains, one public and one private • Retail Space future tenant requirements • Runouts for future grease interceptors between back of Retail Spaces and Capital Avenue sidewalk. Sump pumps may be required for below grade parking drains. Sand and oil separators and grease interceptors will be located under the Capital Avenue sidewalk or street-side parking spaces. Floor drains, sand and oil separators, and sump pumps will be sized to accommodate fire sprinkler operation. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Plumbing – Option 2C 2 Storm Water Service A single 12-inch storm-water connection is proposed based upon a 100-year 1-hour rainfall of 3.25 inch and the main being pitched at 1/8 inch per foot. Primary and secondary drains will be provided on the uncovered top level of the parking garage. Trench drains will be provided at the bottom of uncovered vehicle ramps. Horizontal leaders will connect these drains to primary and secondary stacks. The primary stacks will be directly connected to mains tapped into the municipal storm-water system. The secondary stacks will discharge through lamb’s tongues near grade. Natural Gas Service No natural gas services are proposed. Codes Governing Construction Construction will comply with the following codes along with their Jefferson City Amendments. • Americans with Disabilities Act (ADA) Design Standards for Accessible Design • International Building Code, 2015 • International Fire Code, 2015 • International Mechanical Code, 2015 • International Plumbing Code, 2015 • National Electrical Code, 2014 Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Plumbing – Option 2E 1 Jefferson City Madison Street Parking Garage Option 2E: Three Bay, flat deck, express ramps with 90-degree parking Narrative for Schematic Design for the Plumbing Systems Domestic Water Service A single 2-inch domestic-water connection is proposed. The loads for this service include: • Parking Garage and sidewalk washdown hydrants for complete coverage with 100-foot hoses • Storage Room hydrant • Office Restrooms, one public and one private with each single occupancy • Office Breakroom sink and refrigerator • Office Janitor’s Closet mop sink • Office drinking fountains, one public and one private • Retail Space future tenant requirements, possibly restaurants Point-of-use electric water heaters are proposed. Piping exposed to freezing conditions will be heat traced and insulated. A separate meter could be installed for a high consuming tenant such as a restaurant. Sanitary Waste Service A single 6-inch sanitary-sewer connection at Capitol Avenue is proposed. The loads for this sewer include: • Parking Garage floor drains through a sand and oil separator • Parking Garage elevator-shaft pit drain with oil separator • Storage Room floor drains • Office Restrooms, one public and one private with each single occupancy • Office Breakroom sink • Office Janitor’s Closet mop sink • Office drinking fountains, one public and one private • Retail Space future tenant requirements • Runouts for future grease interceptors between back of Retail Spaces and Capital Avenue sidewalk. Sump pumps may be required for below grade parking drains. Sand and oil separators and grease interceptors will be located under the Capital Avenue sidewalk or street-side parking spaces. Floor drains, sand and oil separators, and sump pumps will be sized to accommodate fire sprinkler operation. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Plumbing – Option 2E 2 Storm Water Service A single 12-inch storm-water connection is proposed based upon a 100-year 1-hour rainfall of 3.25 inch and the main being pitched at 1/8 inch per foot. Primary and secondary drains will be provided on the uncovered top level of the parking garage. Trench drains will be provided at the bottom of uncovered vehicle ramps. Horizontal leaders will connect these drains to primary and secondary stacks. The primary stacks will be directly connected to mains tapped into the municipal storm-water system. The secondary stacks will discharge through lamb’s tongues near grade. Natural Gas Service No natural gas services are proposed. Codes Governing Construction Construction will comply with the following codes along with their Jefferson City Amendments. • Americans with Disabilities Act (ADA) Design Standards for Accessible Design • International Building Code, 2015 • International Fire Code, 2015 • International Mechanical Code, 2015 • International Plumbing Code, 2015 • National Electrical Code, 2014 Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Plumbing – Option 3A 1 Jefferson City Madison Street Parking Garage Option 3A: Three Bay, flat deck, parked ramps with 90-degree parking Narrative for Schematic Design for the Plumbing Systems Domestic Water Service A single 2-inch domestic-water connection is proposed. The loads for this service include: • Parking Garage and sidewalk washdown hydrants for complete coverage with 100-foot hoses • Storage Room hydrant • Office Restrooms, one public and one private with each single occupancy • Office Breakroom sink and refrigerator • Office Janitor’s Closet mop sink • Office drinking fountains, one public and one private • Retail Space future tenant requirements, possibly restaurants Point-of-use electric water heaters are proposed. Piping exposed to freezing conditions will be heat traced and insulated. A separate meter could be installed for a high consuming tenant such as a restaurant. Sanitary Waste Service A single 6-inch sanitary-sewer connection at Capitol Avenue is proposed. The loads for this sewer include: • Parking Garage floor drains through a sand and oil separator • Parking Garage elevator-shaft pit drain with oil separator • Storage Room floor drains • Office Restrooms, one public and one private with each single occupancy • Office Breakroom sink • Office Janitor’s Closet mop sink • Office drinking fountains, one public and one private • Retail Space future tenant requirements • Runouts for future grease interceptors between back of Retail Spaces and Capital Avenue sidewalk. Sump pumps may be required for below grade parking drains. Sand and oil separators and grease interceptors will be located under the Capital Avenue sidewalk or street-side parking spaces. Floor drains, sand and oil separators, and sump pumps will be sized to accommodate fire sprinkler operation. Jefferson City, MO – Madison Street Garage Replacement Options Consultant Design Narrative Plumbing – Option 3A 2 Storm Water Service A single 15-inch storm-water connection is proposed based upon a 100-year 1-hour rainfall of 3.25 inch and the main being pitched at 1/8 inch per foot. Primary and secondary drains will be provided on the uncovered top level of the parking garage. Trench drains will be provided at the bottom of uncovered vehicle ramps. Horizontal leaders will connect these drains to primary and secondary stacks. The primary stacks will be directly connected to mains tapped into the municipal storm-water system. The secondary stacks will discharge through lamb’s tongues near grade. Natural Gas Service No natural gas services are proposed. Codes Governing Construction Construction will comply with the following codes along with their Jefferson City Amendments. • Americans with Disabilities Act (ADA) Design Standards for Accessible Design • International Building Code, 2015 • International Fire Code, 2015 • International Mechanical Code, 2015 • International Plumbing Code, 2015 • National Electrical Code, 2014 Jefferson City, MO – Madison Street Garage Replacement Options City of Jefferson City, Missouri APPENDIX C Cost Estimate Madison Street GarageJefferson City, MOStructural Engineering AssociatesConceptual Estimate 09/09/2022 revised 9/12/22SummaryOption# CarsTotal SFTotal CostGarage$/CarRetailSiteOption 2C694 244,630 42,006,236$ 37,753,711$ 54,400$ 1,846,731$ 2,405,795$ Option 2E596 231,597 38,896,293$ 34,509,259$ 57,901$ 1,818,255$ 2,568,780$ Option 3A713 242,988 39,070,220$ 32,877,445$ 46,111$ 3,142,859$ 3,049,915$ AlternatesAlternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIPOption 2C(618,621)$ Option 2E(607,236)$ Option 3A(668,431)$ Alternate 2A - Deduct for Gated Operation w/o Nest(618,621)$ Alternate 2B - Deduct for Gateless Operation w/Nest(100,185)$ Alternate 2C - Deduct for Gateless Operation w/o Nest(634,506)$ Madison Street Garage - Option 2C Jefferson City, MO Structural Engineering Associates Conceptual Estimate 09/09/2022 DESCRIPTION TOTAL Garage $/SF Retail $/SF Site 01 00 00 GENERAL CONDITIONS 2,193,938 1,971,834 8.06 96,453 7.98 125,652 02 41 00 DEMOLITION 1,157,646 - 0.00 - 0.00 1,157,646 03 30 00 CAST-IN-PLACE CONCRETE 14,700,552 14,697,406 60.08 3,146 0.26 - 03 45 00 ARCHITECTURAL PRECAST CONCRETE 1,688,500 1,688,500 6.90 - 0.00 - 04 20 00 UNIT MASONRY 146,304 69,312 0.28 76,992 6.37 - 05 12 00 STRUCTURAL STEEL 497,621 144,029 0.59 353,592 29.25 - 05 31 00 STEEL DECK 66,340 30,074 0.12 36,266 3.00 - 05 50 00 METAL FABRICATIONS 183,473 183,473 0.75 - 0.00 - 05 52 00 PIPE & TUBE RAILINGS 854,884 854,884 3.49 - 0.00 - 05 58 00 EXPANSION JOINT COVER ASSEMBLIES 72,060 72,060 0.29 - 0.00 - 06 10 00 ROUGH CARPENTRY 34,510 18,790 0.08 15,720 1.30 - 07 21 00 THERMAL INSULATION 10,533 3,983 0.02 6,550 0.54 - 07 50 00 MEMBRANE ROOFING 298,103 80,508 0.33 217,595 18.00 - 07 60 00 SHEET METAL FLASHING AND TRIM 26,443 14,915 0.06 11,528 0.95 - 07 92 00 JOINT SEALANTS 79,953 79,653 0.33 300 0.02 - 08 11 00 STEEL DOOR & FRAMES 6,880 3,180 0.01 3,700 0.31 - 08 41 00 ALUMINUM ENTRANCES AND STOREFRONTS 224,600 45,300 0.19 179,300 14.83 - 08 44 13 GLAZED ALUMINUM CURTAIN WALLS 504,007 504,007 2.06 - 0.00 - 08 71 00 DOOR HARDWARE 11,000 5,500 0.02 5,500 0.45 - 09 00 00 INTERIOR CONSTRUCTION 265,906 120,843 0.49 145,063 12.00 - 09 21 16 GYPSUM SYSTEMS 8,892 8,892 0.04 - 0.00 - 09 90 00 PAINTING 262,813 262,213 1.07 600 0.05 - 10 44 00 FIRE-PROTECTION SPECIALTIES 6,000 5,500 0.02 500 0.04 - 11 12 00 PARKING CONTROL EQUIPMENT 800,000 800,000 3.27 - 0.00 - 14 20 00 ELEVATORS 255,000 255,000 1.04 - 0.00 - 21 00 00 FIRE PROTECTION 140,811 140,811 0.58 - 0.00 - 22 00 00 PLUMBING 953,040 856,331 3.50 96,709 8.00 - 23 00 00 HVAC 228,550 228,550 0.93 - 0.00 - 26 00 00 ELECTRICAL 4,846,601 4,578,626 18.72 132,975 11.00 135,000 31 20 00 EARTH MOVING 225,816 115,601 0.47 - 0.00 110,216 31 63 00 DRILLED PIERS 415,039 415,039 1.70 - 0.00 - 32 12 16 ASPHALT PAVING 54,168 - 0.00 - 0.00 54,168 32 13 13 CEMENT CONCRETE PAVING 103,330 - 0.00 - 0.00 103,330 32 93 00 EXTERIOR PLANTS 25,000 - 0.00 - 0.00 25,000 33 10 00 WATER DISTRIBUTION 35,000 - 0.00 - 0.00 35,000 33 30 00 SANITARY SEWERAGE 20,000 - 0.00 - 0.00 20,000 33 40 00 STORM DRAINAGE 35,000 - 0.00 - 0.00 35,000 33 46 16 FOUNDATION DRAINAGE SYSTEMS 8,137 8,137 0.03 - 0.00 - subtotal 31,446,448 28,262,949 115.53 1,382,488 114.36 1,801,011 Contractor's Fee 4% 1,257,858 1,130,518 4.62 55,300 4.57 72,040 subtotal 32,704,306 29,393,467 120.15 1,437,788 118.94 1,873,051 Design/Estimate Contingency 15% 4,905,646 4,409,020 18.02 215,668 17.84 280,958 subtotal 37,609,952 33,802,487 138.18 1,653,456 136.78 2,154,009 Escalation to Mid-Point - 07/31/2024 11.7% 4,396,284 3,951,224 16.15 193,275 15.99 251,785 TOTAL 42,006,236 37,753,711 154.33 1,846,731 152.77 2,405,795 54,400$ /Car Alternates: Alternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIP (618,621)$ Alternate 2A - Deduct for Gated Operation w/o Nest (100,185)$ Alternate 2B - Deduct for Gateless Operation w/Nest (634,506)$ Alternate 2C - Deduct for Gateless Operation w/o Nest (267,160)$ 12,089 SF244,630 SF Page 1 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 02 41 00 DEMOLITION Site Demo Sidewalk/Entrances :: 7,110 SF ::1.00 :7,110 Sawcut :: 328 LF ::10.00 :3,278 Demo Curb and Gutter :: 509 LF ::4.00 :2,035 Demo Asphalt Paving :: 2,538 SF ::0.75 :1,903 Remove Trees/Tree Wells ::9 EA :: 750.00 :6,750 Salvage Street Lights ::7 EA :: 500.00 :3,500 Salvage Parking Meters ::5 EA :: 300.00 :1,500 Demo West Garage SOG/Foundations :: 32,918 SF ::3.75 : 123,441 Demo E Garage CIP Steel Structure :: 131,670 SF ::2.25 : 296,258 Demo East Garage SOG/Foundations :: 19,316 SF ::3.75 : 72,434 Demo E Garage CIP Post Tensioned Structure :: 57,947 SF ::2.75 : 159,355 Haul Off :: 16,003 CY ::30.00 : 480,081 -------------------- 1,157,646 03 30 00 CAST-IN-PLACE CONCRETE Pier Caps :: 86 CY :: 700.00 : 59,850 Grade Beam :: 475 CY :: 675.00 : 320,936 Continuous Wall Footing :: 16 CY :: 700.00 : 11,494 Elevator Pit Mat - 24":: 158 SF ::20.00 :3,166 Elevator Pit Walls 12":: 161 SF ::60.00 :9,680 CIP Foundation Wall - 12":: 11,444 SF ::58.00 : 663,736 CIP Elevator Shaft/Stair Wall - 10":: 5,693 SF ::55.00 : 313,088 CIP Interior Screen Wall - 10":: 5,712 SF ::65.00 : 371,298 SOG - Garage Flat :: 13,802 SF ::6.25 : 86,260 SOG - Garage Ramp :: 18,749 SF ::7.00 : 131,243 SOG - Storage/Retail :: 13,980 SF ::6.50 : 90,872 Islands/Curbs :: 1,446 SF ::6.00 :8,677 PT Structural Slab/Beams/Columns - Flat :: 75,927 SF ::60.00 : 4,555,640 PT Structural Slab/Beams/Columns - Ramp :: 118,461 SF ::65.00 : 7,699,979 Lid at Elevator Shaft :: 103 SF ::40.00 :4,133 CIP Stairs/Columns :: 13 FL :: 28,500.00 : 370,500 -------------------- 14,700,552 0 03 45 00 ARCHITECTURAL PRECAST CONCRETE Precast Wall Panels w/Brick Veneer :: 22,513 SF ::75.00 : 1,688,500 -------------------- 1,688,500 0 04 20 00 UNIT MASONRY 8" CMU Backup :: 2,888 SF ::24.00 : 69,312 8" CMU Backup - Retail :: 3,208 SF ::24.00 : 76,992 -------------------- 146,304 Page 2 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 05 12 00 STRUCTURAL STEEL Beams and Columns - Stairs/Office Storage Roof :: 19 TN :: 7,500.00 : 144,029 Beams and Columns - Retail Roof :: 54 TN :: 6,500.00 : 353,592 -------------------- 497,621 05 31 00 STEEL DECK Roof Decking - Retail :: 12,089 SF ::3.00 : 36,266 Roof Decking - Stairs/Office/Storage :: 3,759 SF ::8.00 : 30,074 -------------------- 66,340 05 50 00 METAL FABRICATIONS Miscellaneous Steel :: 244,630 SF ::0.75 : 183,473 -------------------- 183,473 05 52 00 PIPE & TUBE RAILINGS Galvanized Metal Guard Rail :: 957 LF :: 400.00 : 382,844 Cable Guard Rail :: 1,818 LF :: 250.00 : 454,556 Galvanized Wall Rail :: 159 LF :: 110.00 : 17,485 -------------------- 854,884 05 58 00 EXPANSION JOINT COVER ASSEMBLIES Traffic Expansion Joint :: 801 LF ::90.00 : 72,060 -------------------- 72,060 06 10 00 ROUGH CARPENTRY Roof Blocking :: 2,505 BM ::7.50 : 18,790 Roof Blocking - Retail :: 2,096 BM ::7.50 : 15,720 -------------------- 34,510 07 21 00 THERMAL INSULATION Rigid Insulation at Perimeter SOG :: 1,593 SF ::2.50 :3,983 Rigid Insulation at Perimeter SOG - Retail :: 2,620 SF ::2.50 :6,550 -------------------- 10,533 07 50 00 MEMBRANE ROOFING Roof/Insulation at Office/Storage :: 2,234 SF ::20.00 : 44,687 Roof/Insulation at Retail :: 12,089 SF ::18.00 : 217,595 Roof/Insulation at Stairs/Elev :: 1,628 SF ::22.00 : 35,821 -------------------- 298,103 07 60 00 SHEET METAL FLASHING AND TRIM Coping - Office/Storage :: 319 LF ::22.00 :7,011 Coping - Stairs/Elevator :: 300 LF ::25.00 :7,508 Coping - Retail :: 524 LF ::22.00 : 11,528 Counter Flashing - Stairs :: 22 LF ::18.00 :396 -------------------- 26,443 Page 3 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 07 92 00 JOINT SEALANTS HM Frame ::8 EA ::60.00 :480 Slab Joint Sealants :: 244,630 SF ::0.25 : 61,158 Exterior Precast :: 3,053 LF ::6.00 : 18,315 -------------------- 79,953 08 11 00 STEEL DOOR & FRAMES Exterior HM Door - Insulated :: 10 EA :: 450.00 :4,500 HM Frame 3x7 ::6 EA :: 290.00 :1,740 HM Frame 6'x7'::2 EA :: 320.00 :640 -------------------- 6,880 08 41 00 ALUMINUM ENTRANCES AND STOREFRONTS Aluminum Storefront :: 564 SF ::75.00 : 42,300 Aluminum Storefront - Retail :: 2,024 SF ::75.00 : 151,800 Aluminum Entrance Door & Frame ::1 EA :: 3,000.00 :3,000 Aluminum Entrance Double Door - Retail ::5 EA :: 5,500.00 : 27,500 -------------------- 224,600 08 44 13 GLAZED ALUMINUM CURTAIN WALLS Aluminum Curtainwall :: 5,305 SF ::95.00 : 504,007 -------------------- 504,007 08 71 00 DOOR HARDWARE Door Hardware ALLOW :: 10 EA :: 1,100.00 : 11,000 -------------------- 11,000 09 00 00 INTERIOR CONSTRUCTION Interior Construction - Office :: 1,116 SF ::60.00 : 66,960 Interior Construction - Storage :: 1,118 SF ::15.00 : 16,775 Interior Construction - Stairs :: 3,711 SF ::10.00 : 37,108 Interior Construction - Retail Shell :: 12,089 SF ::12.00 : 145,063 -------------------- 265,906 09 21 16 GYPSUM SYSTEMS Furring :: 1,368 SF ::6.50 :8,892 -------------------- 8,892 09 90 00 PAINTING (Painting of Garage Structure/Walls Not Included) :::::0 Seal Garage Floors :: 230,307 SF ::0.95 : 218,792 Paint Gyp Board Walls :: 1,188 SF ::1.10 :1,307 Paint CMU Walls :: 3,400 SF ::1.45 :4,930 Paint HM Frames ::8 EA ::55.00 :440 Paint HM Doors :: 10 EA ::65.00 :650 Miscellaneous Painting :: 244,630 SF ::0.15 : 36,695 -------------------- 262,813 Page 4 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 10 44 00 FIRE-PROTECTION SPECIALTIES FE :: 22 EA :: 250.00 :5,500 FE - Retail ::2 EA :: 250.00 :500 -------------------- 6,000 11 12 00 PARKING CONTROL EQUIPMENT Gated Operation w/One Nest (Cost by Others) ::1 LS :: 800,000.00 : 800,000 -------------------- 800,000 14 20 00 ELEVATORS Passenger Elevator - 5 Stop, Glass Rear ::1 EA :: 255,000.00 : 255,000 255,000 21 00 00 FIRE PROTECTION Dry Pipe Fire Sprinklers in Garage Basement :: 19,965 SF ::4.50 : 89,843 Fire Sprinklers - Office :: 1,116 SF ::4.00 :4,464 Fire Sprinklers - Storage :: 1,118 SF ::3.75 :4,194 Fire Sprinklers - Retail Shell :: 12,089 SF ::3.50 : 42,310 -------------------- 140,811 22 00 00 PLUMBING Garage :: 230,307 SF ::3.50 : 806,076 Office :: 1,116 SF ::30.00 : 33,480 Storage :: 1,118 SF ::15.00 : 16,775 Retail :: 12,089 SF ::8.00 : 96,709 -------------------- 953,040 23 00 00 HVAC Garage - Basement Ventilation/CO Detection :: 19,965 SF ::8.00 : 159,721 Office :: 1,116 SF ::35.00 : 39,060 Storage :: 1,118 SF ::5.00 :5,592 Retail :: 12,089 SF ::2.00 : 24,177 -------------------- 228,550 Page 5 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 26 00 00 ELECTRICAL Site Electrical Service Allow ::1 LS :: 60,000.00 : 60,000 Site Lighting Allow ::1 LS :: 75,000.00 : 75,000 Lighting :: :::0 Garage :: 230,307 SF ::4.00 : 921,230 Office :: 1,116 SF ::10.00 : 11,160 Storage :: 1,118 SF ::6.00 :6,710 Retail :: 12,089 SF ::5.00 : 60,443 Power 0 Garage :: 230,307 SF ::3.00 : 690,922 Office :: 1,116 SF ::8.00 :8,928 Storage :: 1,118 SF ::1.50 :1,678 Retail :: 12,089 SF ::1.50 : 18,133 Distribution Garage :: 230,307 SF ::8.00 : 1,842,459 Office :: 1,116 SF ::7.00 :7,812 Storage :: 1,118 SF ::1.00 :1,118 Retail :: 12,089 SF ::3.00 : 36,266 Telecommunications Garage :: 230,307 SF ::0.50 : 115,154 Office :: 1,116 SF ::2.50 :2,790 Storage :: 1,118 SF ::0.50 :559 Retail :: 12,089 SF ::0.50 :6,044 Fire Alarm Garage :: 230,307 SF ::3.00 : 690,922 Office :: 1,116 SF ::4.50 :5,022 Storage :: 1,118 SF ::3.00 :3,355 Retail :: 12,089 SF ::3.00 : 36,266 Security System Garage :: 230,307 SF ::1.00 : 230,307 Office :: 1,116 SF ::1.00 :1,116 Storage :: 1,118 SF ::1.00 :1,118 Retail :: 12,089 SF ::1.00 : 12,089 -------------------- 4,846,601 31 20 00 EARTH MOVING Clear Site :: 1.42 AC :: 1,500.00 :2,137 Site Cut/Fill :: 9,310 CY ::10.00 : 93,104 Grade Concrete Paving :: 2,109 SF ::0.35 :738 Grade Sidewalks :: 9,105 SF ::0.30 :2,731 Backfill Curb and Gutter :: 592 LF ::4.50 :2,665 Grade Asphalt Paving :: 373 SY ::1.25 :467 Grade Building :: 46,531 SF ::0.50 : 23,266 Foundation Excavation :: 4,294 CY ::10.00 : 42,941 Foundation Backfill :: 3,293 CY ::15.00 : 49,394 Finish Grade Site :: 107 SY ::5.00 :536 Temporary Erosion Control :: 1.42 AC :: 5,500.00 :7,837 -------------------- 225,816 Page 6 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 31 63 00 DRILLED PIERS Drilled Piers :: 572 CY :: 725.00 : 415,039 -------------------- 415,039 32 12 16 ASPHALT PAVING Asphalt Paving - Patch at Diagonal Parking :: 373 SY ::40.00 : 14,929 Asphalt Paving - Patch at New Curb :: 372 LF ::12.00 :4,468 Parking Striping :: 694 EA ::30.00 : 20,820 Parking Striping at Diagonal Parking :: 18 EA ::25.00 :450 Reinstall/New Parking Meters :: 18 EA :: 750.00 : 13,500 -------------------- 54,168 32 13 13 CEMENT CONCRETE PAVING Sidewalk :: 9,105 SF ::7.50 : 68,287 Concrete Paving :: 2,109 SF ::11.00 : 23,200 Curb & Gutter :: 592 LF ::20.00 : 11,843 -------------------- 103,330 32 93 00 EXTERIOR PLANTS Misc Landscaping ::1 LS :: 25,000.00 : 25,000 -------------------- 25,000 33 10 00 WATER DISTRIBUTION Allow ::1 LS :: 35,000.00 : 35,000 -------------------- 35,000 33 30 00 SANITARY SEWERAGE Allow ::1 LS :: 20,000.00 : 20,000 -------------------- 20,000 33 40 00 STORM DRAINAGE Allow for Connections/Modifications ::1 LS :: 35,000.00 : 35,000 -------------------- 35,000 33 46 16 FOUNDATION DRAINAGE SYSTEMS Perimeter Foundation Drain :: 1,162 LF ::7.00 :8,137 -------------------- 8,137 Page 7 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL Alternates: Alternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIP Delete the Following: PT Structural Slab/Beams/Columns - Flat -75,927 SF 60.00 -4,555,640 PT Structural Slab/Beams/Columns - Ramp -118,461 SF 65.00 -7,699,979 CIP Elevator Shaft/Stair Wall - 10"-5,693 SF 55.00 -313,088 CIP Interior Screen Wall - 10"-5,712 SF 65.00 -371,298 CIP Stairs/Columns -13 FL 28,500.00 -370,500 Add the Following:0 Topping Slab 194,389 SF 6.50 1,263,526 Precast Dbl-Tee w/Beams and Columns - Flat 75,927 SF 50.00 3,796,367 Precast Dbl-Tee w/Beams and Columns - Ramp 118,461 SF 55.00 6,515,367 Precast Screen Wall 5,693 SF 55.00 313,088 Precast Elevator/Stair Walls 5,712 SF 50.00 285,614 Add Sheer Walls 6,624 SF 55.00 364,320 Precast Stairs/Columns 13 FL 22,500.00 292,500 Slab Joint Sealants 244,630 SF 0.20 48,926 General Requirements 1 LS (32,309.85) -32,310 -------------------- subtotal (463,108) Contractor's Fee 4%(18,524) subtotal (481,632) Design/Estimate Contingency 15%(72,245) subtotal (553,877) Escalation to Mid-Point - 07/31/2024 11.7%(64,744) TOTAL (618,621) Alternate 2A - Deduct for Gated Operation w/o Nest Parking Control Equipment 1 LS (75,000.00) -75,000 -------------------- subtotal (75,000) Contractor's Fee 4%(3,000) subtotal (78,000) Design/Estimate Contingency 15%(11,700) subtotal (89,700) Escalation to Mid-Point - 07/31/2024 11.7%(10,485) TOTAL (100,185) Alternate 2B - Deduct for Gateless Operation w/Nest Parking Control Equipment 1 LS (475,000.00) -475,000 -------------------- subtotal (475,000) Contractor's Fee 4%(19,000) subtotal (494,000) Design/Estimate Contingency 15%(74,100) subtotal (568,100) Escalation to Mid-Point - 07/31/2024 11.7%(66,406) TOTAL (634,506) Page 8 of 9 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL Alternate 2C - Deduct for Gateless Operation w/o Nest Parking Control Equipment 1 LS (200,000.00) -200,000 -------------------- subtotal (200,000) Contractor's Fee 4%(8,000) subtotal (208,000) Design/Estimate Contingency 15%(31,200) subtotal (239,200) Escalation to Mid-Point - 07/31/2024 11.7%(27,960) TOTAL (267,160) Page 9 of 9 Madison Street Garage - Option 2E Jefferson City, MO Structural Engineering Associates Conceptual Estimate 09/09/2022 DESCRIPTION TOTAL Garage $/SF Retail $/SF Site 01 00 00 GENERAL CONDITIONS 2,031,509 1,802,380 7.78 94,965 7.86 134,164 02 41 00 DEMOLITION 1,157,646 - 0.00 - 0.00 1,157,646 03 30 00 CAST-IN-PLACE CONCRETE 12,957,156 12,954,304 55.93 2,852 0.24 - 03 45 00 ARCHITECTURAL PRECAST CONCRETE 1,730,850 1,730,850 7.47 - 0.00 - 04 20 00 UNIT MASONRY 104,336 55,376 0.24 48,960 4.05 - 05 12 00 STRUCTURAL STEEL 537,698 184,335 0.80 353,363 29.25 - 05 31 00 STEEL DECK 75,857 39,614 0.17 36,242 3.00 - 05 50 00 METAL FABRICATIONS 173,698 173,698 0.75 - 0.00 - 05 52 00 PIPE & TUBE RAILINGS 846,810 846,810 3.66 - 0.00 - 05 58 00 EXPANSION JOINT COVER ASSEMBLIES 66,480 66,480 0.29 - 0.00 - 06 10 00 ROUGH CARPENTRY 36,400 20,200 0.09 16,200 1.34 - 07 21 00 THERMAL INSULATION 11,325 4,575 0.02 6,750 0.56 - 07 50 00 MEMBRANE ROOFING 321,823 104,369 0.45 217,454 18.00 - 07 60 00 SHEET METAL FLASHING AND TRIM 27,828 15,948 0.07 11,880 0.98 - 07 92 00 JOINT SEALANTS 76,694 76,394 0.33 300 0.02 - 08 11 00 STEEL DOOR & FRAMES 6,880 3,180 0.01 3,700 0.31 - 08 41 00 ALUMINUM ENTRANCES AND STOREFRONTS 226,400 39,000 0.17 187,400 15.51 - 08 44 13 GLAZED ALUMINUM CURTAIN WALLS 505,463 505,463 2.18 - 0.00 - 08 71 00 DOOR HARDWARE 11,000 5,500 0.02 5,500 0.46 - 09 00 00 INTERIOR CONSTRUCTION 275,323 130,353 0.56 144,969 12.00 - 09 21 16 GYPSUM SYSTEMS 8,164 8,164 0.04 - 0.00 - 09 90 00 PAINTING 245,896 245,296 1.06 600 0.05 - 10 44 00 FIRE-PROTECTION SPECIALTIES 5,750 5,250 0.02 500 0.04 - 11 12 00 PARKING CONTROL EQUIPMENT 800,000 800,000 3.45 - 0.00 - 14 20 00 ELEVATORS 255,000 255,000 1.10 - 0.00 - 21 00 00 FIRE PROTECTION 55,365 55,365 0.24 - 0.00 - 22 00 00 PLUMBING 919,332 822,685 3.55 96,646 8.00 - 23 00 00 HVAC 71,324 71,324 0.31 - 0.00 - 26 00 00 ELECTRICAL 4,582,500 4,314,611 18.63 132,889 11.00 135,000 31 20 00 EARTH MOVING 273,812 47,428 0.20 - 0.00 226,384 31 63 00 DRILLED PIERS 445,408 445,408 1.92 - 0.00 - 32 12 16 ASPHALT PAVING 51,425 - 0.00 - 0.00 51,425 32 13 13 CEMENT CONCRETE PAVING 103,406 - 0.00 - 0.00 103,406 32 93 00 EXTERIOR PLANTS 25,000 - 0.00 - 0.00 25,000 33 10 00 WATER DISTRIBUTION 35,000 - 0.00 - 0.00 35,000 33 30 00 SANITARY SEWERAGE 20,000 - 0.00 - 0.00 20,000 33 40 00 STORM DRAINAGE 35,000 - 0.00 - 0.00 35,000 33 46 16 FOUNDATION DRAINAGE SYSTEMS 4,746 4,746 0.02 - 0.00 - subtotal 29,118,302 25,834,108 111.55 1,361,170 112.67 1,923,024 Contractor's Fee 4% 1,164,732 1,033,364 4.46 54,447 4.51 76,921 subtotal 30,283,034 26,867,472 116.01 1,415,617 117.18 1,999,945 Design/Estimate Contingency 15% 4,542,455 4,030,121 17.40 212,343 17.58 299,992 subtotal 34,825,490 30,897,593 133.41 1,627,960 134.76 2,299,937 Escalation to Mid-Point - 07/31/2024 11.7% 4,070,804 3,611,666 15.59 190,295 15.75 268,843 TOTAL 38,896,293 34,509,259 149.01 1,818,255 150.51 2,568,780 57,901$ /Car Alternates: Alternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIP (607,236)$ 12,081 SF231,597 SF Page 1 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 02 41 00 DEMOLITION Site Demo Sidewalk/Entrances :: 7,110 SF ::1.00 :7,110 Sawcut :: 328 LF ::10.00 :3,278 Demo Curb and Gutter :: 509 LF ::4.00 :2,035 Demo Asphalt Paving :: 2,538 SF ::0.75 :1,903 Remove Trees/Tree Wells ::9 EA :: 750.00 :6,750 Salvage Street Lights ::7 EA :: 500.00 :3,500 Salvage Parking Meters ::5 EA :: 300.00 :1,500 Demo West Garage SOG/Foundations :: 32,918 SF ::3.75 : 123,441 Demo E Garage CIP Steel Structure :: 131,670 SF ::2.25 : 296,258 Demo East Garage SOG/Foundations :: 19,316 SF ::3.75 : 72,434 Demo E Garage CIP Post Tensioned Structure :: 57,947 SF ::2.75 : 159,355 Haul Off :: 16,003 CY ::30.00 : 480,081 -------------------- 1,157,646 03 30 00 CAST-IN-PLACE CONCRETE Pier Caps :: 92 CY :: 700.00 : 64,575 Grade Beam :: 517 CY :: 675.00 : 349,125 Continuous Wall Footing ::9 CY :: 700.00 :6,481 Elevator Pit Mat - 24":: 158 SF ::20.00 :3,167 Elevator Pit Walls 12":: 160 SF ::60.00 :9,600 CIP Foundation Wall - 12":: 3,624 SF ::58.00 : 210,192 CIP Elevator Shaft/Stair Wall - 10":: 5,975 SF ::55.00 : 328,603 CIP Interior Screen Wall - 10":: 5,089 SF ::65.00 : 330,778 SOG - Garage Flat :: 27,280 SF ::6.25 : 170,500 SOG - Garage Ramp :: 3,011 SF ::7.00 : 21,077 SOG - Storage/Retail/Office :: 16,165 SF ::6.50 : 105,070 Islands/Curbs :: 1,484 SF ::6.00 :8,906 PT Structural Slab/Beams/Columns - Flat :: 171,935 SF ::60.00 : 10,316,093 PT Structural Slab/Beams/Columns - Ramp :: 9,812 SF ::70.00 : 686,856 Lid at Elevator Shaft :: 103 SF ::40.00 :4,133 CIP Stairs/Columns :: 12 FL :: 28,500.00 : 342,000 -------------------- 12,957,156 0 03 45 00 ARCHITECTURAL PRECAST CONCRETE Precast Wall Panels w/Brick Veneer :: 23,078 SF ::75.00 : 1,730,850 -------------------- 1,730,850 0 04 20 00 UNIT MASONRY 8" CMU Backup :: 2,307 SF ::24.00 : 55,376 8" CMU Backup - Retail :: 2,040 SF ::24.00 : 48,960 -------------------- 104,336 Page 2 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 05 12 00 STRUCTURAL STEEL Beams and Columns - Stairs/Office Storage Roof :: 25 TN :: 7,500.00 : 184,335 Beams and Columns - Retail Roof :: 54 TN :: 6,500.00 : 353,363 -------------------- 537,698 05 31 00 STEEL DECK Roof Decking - Retail :: 12,081 SF ::3.00 : 36,242 Roof Decking - Stairs/Office/Storage :: 4,952 SF ::8.00 : 39,614 -------------------- 75,857 05 50 00 METAL FABRICATIONS Miscellaneous Steel :: 231,597 SF ::0.75 : 173,698 -------------------- 173,698 05 52 00 PIPE & TUBE RAILINGS Galvanized Metal Guard Rail :: 932 LF :: 400.00 : 372,900 Cable Guard Rail :: 1,832 LF :: 250.00 : 458,000 Galvanized Wall Rail :: 145 LF :: 110.00 : 15,910 -------------------- 846,810 05 58 00 EXPANSION JOINT COVER ASSEMBLIES Traffic Expansion Joint :: 739 LF ::90.00 : 66,480 -------------------- 66,480 06 10 00 ROUGH CARPENTRY Roof Blocking :: 2,693 BM ::7.50 : 20,200 Roof Blocking - Retail :: 2,160 BM ::7.50 : 16,200 -------------------- 36,400 07 21 00 THERMAL INSULATION Rigid Insulation at Perimeter SOG :: 1,830 SF ::2.50 :4,575 Rigid Insulation at Perimeter SOG - Retail :: 2,700 SF ::2.50 :6,750 -------------------- 11,325 07 50 00 MEMBRANE ROOFING Roof/Insulation at Office/Storage :: 3,422 SF ::20.00 : 68,436 Roof/Insulation at Retail :: 12,081 SF ::18.00 : 217,454 Roof/Insulation at Stairs/Elev :: 1,633 SF ::22.00 : 35,933 -------------------- 321,823 07 60 00 SHEET METAL FLASHING AND TRIM Coping - Office/Storage :: 366 LF ::22.00 :8,052 Coping - Stairs/Elevator :: 300 LF ::25.00 :7,500 Coping - Retail :: 540 LF ::22.00 : 11,880 Counter Flashing - Stairs :: 22 LF ::18.00 :396 -------------------- 27,828 Page 3 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 07 92 00 JOINT SEALANTS HM Frame ::8 EA ::60.00 :480 Slab Joint Sealants :: 231,597 SF ::0.25 : 57,899 Exterior Precast :: 3,053 LF ::6.00 : 18,315 -------------------- 76,694 08 11 00 STEEL DOOR & FRAMES Exterior HM Door - Insulated :: 10 EA :: 450.00 :4,500 HM Frame 3x7 ::6 EA :: 290.00 :1,740 HM Frame 6'x7'::2 EA :: 320.00 :640 -------------------- 6,880 08 41 00 ALUMINUM ENTRANCES AND STOREFRONTS Aluminum Storefront :: 480 SF ::75.00 : 36,000 Aluminum Storefront - Retail :: 2,132 SF ::75.00 : 159,900 Aluminum Entrance Door & Frame ::1 EA :: 3,000.00 :3,000 Aluminum Entrance Double Door - Retail ::5 EA :: 5,500.00 : 27,500 -------------------- 226,400 08 44 13 GLAZED ALUMINUM CURTAIN WALLS Aluminum Curtainwall :: 5,321 SF ::95.00 : 505,463 -------------------- 505,463 08 71 00 DOOR HARDWARE Door Hardware ALLOW :: 10 EA :: 1,100.00 : 11,000 -------------------- 11,000 09 00 00 INTERIOR CONSTRUCTION Interior Construction - Office :: 1,002 SF ::60.00 : 60,107 Interior Construction - Storage :: 2,420 SF ::15.00 : 36,300 Interior Construction - Stairs :: 3,395 SF ::10.00 : 33,947 Interior Construction - Retail Shell :: 12,081 SF ::12.00 : 144,969 -------------------- 275,323 09 21 16 GYPSUM SYSTEMS Furring :: 1,256 SF ::6.50 :8,164 -------------------- 8,164 09 90 00 PAINTING (Painting of Garage Structure/Walls Not Included) :::::0 Seal Garage Floors :: 216,095 SF ::0.95 : 205,290 Paint Gyp Board Walls :: 1,064 SF ::1.10 :1,170 Paint CMU Walls :: 2,487 SF ::1.45 :3,606 Paint HM Frames ::8 EA ::55.00 :440 Paint HM Doors :: 10 EA ::65.00 :650 Miscellaneous Painting :: 231,597 SF ::0.15 : 34,740 -------------------- 245,896 Page 4 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 10 44 00 FIRE-PROTECTION SPECIALTIES FE :: 21 EA :: 250.00 :5,250 FE - Retail ::2 EA :: 250.00 :500 -------------------- 5,750 11 12 00 PARKING CONTROL EQUIPMENT Gated Operation w/One Nest (Cost by Others) ::1 LS :: 800,000.00 : 800,000 -------------------- 800,000 14 20 00 ELEVATORS Passenger Elevator - 5 Stop, Glass Rear ::1 EA :: 255,000.00 : 255,000 255,000 21 00 00 FIRE PROTECTION Fire Sprinklers - Office :: 1,002 SF ::4.00 :4,007 Fire Sprinklers - Storage :: 2,420 SF ::3.75 :9,075 Fire Sprinklers - Retail Shell :: 12,081 SF ::3.50 : 42,283 -------------------- 55,365 22 00 00 PLUMBING Garage :: 216,095 SF ::3.50 : 756,332 Office :: 1,002 SF ::30.00 : 30,053 Storage :: 2,420 SF ::15.00 : 36,300 Retail :: 12,081 SF ::8.00 : 96,646 -------------------- 919,332 23 00 00 HVAC Office :: 1,002 SF ::35.00 : 35,062 Storage :: 2,420 SF ::5.00 : 12,100 Retail :: 12,081 SF ::2.00 : 24,162 -------------------- 71,324 Page 5 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 26 00 00 ELECTRICAL Site Electrical Service Allow ::1 LS :: 60,000.00 : 60,000 Site Lighting Allow ::1 LS :: 75,000.00 : 75,000 Lighting :: :::0 Garage :: 216,095 SF ::4.00 : 864,380 Office :: 1,002 SF ::10.00 : 10,018 Storage :: 2,420 SF ::6.00 : 14,520 Retail :: 12,081 SF ::5.00 : 60,404 Power 0 Garage :: 216,095 SF ::3.00 : 648,285 Office :: 1,002 SF ::8.00 :8,014 Storage :: 2,420 SF ::1.50 :3,630 Retail :: 12,081 SF ::1.50 : 18,121 Distribution Garage :: 216,095 SF ::8.00 : 1,728,759 Office :: 1,002 SF ::7.00 :7,012 Storage :: 2,420 SF ::1.00 :2,420 Retail :: 12,081 SF ::3.00 : 36,242 Telecommunications Garage :: 216,095 SF ::0.50 : 108,047 Office :: 1,002 SF ::2.50 :2,504 Storage :: 2,420 SF ::0.50 :1,210 Retail :: 12,081 SF ::0.50 :6,040 Fire Alarm Garage :: 216,095 SF ::3.00 : 648,285 Office :: 1,002 SF ::4.50 :4,508 Storage :: 2,420 SF ::3.00 :7,260 Retail :: 12,081 SF ::3.00 : 36,242 Security System Garage :: 216,095 SF ::1.00 : 216,095 Office :: 1,002 SF ::1.00 :1,002 Storage :: 2,420 SF ::1.00 :2,420 Retail :: 12,081 SF ::1.00 : 12,081 -------------------- 4,582,500 31 20 00 EARTH MOVING Clear Site :: 1.42 AC :: 1,500.00 :2,137 Site Cut/Fill :: 9,309 CY ::10.00 : 93,094 Haul In to Fill Basement :: 5,804 CY ::20.00 : 116,074 Grade Concrete Paving :: 2,084 SF ::0.35 :729 Grade Sidewalks :: 9,114 SF ::0.30 :2,734 Backfill Curb and Gutter :: 606 LF ::4.50 :2,729 Grade Asphalt Paving :: 373 SY ::1.25 :466 Grade Building :: 46,456 SF ::0.50 : 23,228 Foundation Excavation :: 1,420 CY ::10.00 : 14,198 Foundation Backfill :: 667 CY ::15.00 : 10,002 Finish Grade Site :: 117 SY ::5.00 :584 Temporary Erosion Control :: 1.42 AC :: 5,500.00 :7,836 -------------------- 273,812 Page 6 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 31 63 00 DRILLED PIERS Drilled Piers :: 614 CY :: 725.00 : 445,408 -------------------- 445,408 32 12 16 ASPHALT PAVING Asphalt Paving - Patch at Diagonal Parking :: 373 SY ::40.00 : 14,926 Asphalt Paving - Patch at New Curb :: 389 LF ::12.00 :4,669 Parking Striping :: 596 EA ::30.00 : 17,880 Parking Striping at Diagonal Parking :: 18 EA ::25.00 :450 Reinstall/New Parking Meters :: 18 EA :: 750.00 : 13,500 -------------------- 51,425 32 13 13 CEMENT CONCRETE PAVING Sidewalk :: 9,114 SF ::7.50 : 68,352 Concrete Paving :: 2,084 SF ::11.00 : 22,924 Curb & Gutter :: 606 LF ::20.00 : 12,130 -------------------- 103,406 32 93 00 EXTERIOR PLANTS Misc Landscaping ::1 LS :: 25,000.00 : 25,000 -------------------- 25,000 33 10 00 WATER DISTRIBUTION Allow ::1 LS :: 35,000.00 : 35,000 -------------------- 35,000 33 30 00 SANITARY SEWERAGE Allow ::1 LS :: 20,000.00 : 20,000 -------------------- 20,000 33 40 00 STORM DRAINAGE Allow for Connections/Modifications ::1 LS :: 35,000.00 : 35,000 -------------------- 35,000 33 46 16 FOUNDATION DRAINAGE SYSTEMS Perimeter Foundation Drain :: 678 LF ::7.00 :4,746 -------------------- 4,746 Page 7 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL Alternates: Alternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIP Delete the Following: PT Structural Slab/Beams/Columns - Flat -171,935 SF 60.00 -10,316,093 PT Structural Slab/Beams/Columns - Ramp -9,812 SF 70.00 -686,856 CIP Elevator Shaft/Stair Wall - 10"-5,975 SF 55.00 -328,603 CIP Interior Screen Wall - 10"-5,089 SF 65.00 -330,778 CIP Stairs/Columns -12 FL 28,500.00 -342,000 Add the Following:0 Topping Slab 181,747 SF 6.50 1,181,356 Precast Dbl-Tee w/Beams and Columns - Flat 171,935 SF 50.00 8,596,744 Precast Dbl-Tee w/Beams and Columns - Ramp 9,812 SF 55.00 539,672 Precast Screen Wall 5,975 SF 55.00 328,603 Precast Elevator/Stair Walls 5,089 SF 50.00 254,444 Add Sheer Walls 6,624 SF 55.00 364,320 Precast Stairs/Columns 12 FL 22,500.00 270,000 Slab Joint Sealants 231,597 SF 0.20 46,319 General Requirements 1 LS (31,715.24) -31,715 -------------------- subtotal (454,585) Contractor's Fee 4%(18,183) subtotal (472,768) Design/Estimate Contingency 15%(70,915) subtotal (543,684) Escalation to Mid-Point - 07/31/2024 11.7%(63,552) TOTAL (607,236) Page 8 of 8 Madison Street Garage - Option 3A Jefferson City, MO Structural Engineering Associates Conceptual Estimate 09/09/2022 Revised 9/12/22 DESCRIPTION TOTAL Garage $/SF Retail $/SF Site 01 00 00 GENERAL CONDITIONS 2,166,556 1,823,149 7.50 174,281 8.59 169,127 02 41 00 DEMOLITION 1,406,482 - 0.00 - 0.00 1,406,482 03 30 00 CAST-IN-PLACE CONCRETE 12,399,430 12,389,924 50.99 9,506 0.47 - 03 45 00 ARCHITECTURAL PRECAST CONCRETE 1,300,800 1,300,800 5.35 - 0.00 - 04 20 00 UNIT MASONRY 180,864 24,480 0.10 156,384 7.70 - 05 12 00 STRUCTURAL STEEL 693,694 100,023 0.41 593,671 29.25 - 05 31 00 STEEL DECK 80,532 19,643 0.08 60,889 3.00 - 05 50 00 METAL FABRICATIONS 182,241 182,241 0.75 - 0.00 - 05 52 00 PIPE & TUBE RAILINGS 709,410 709,410 2.92 - 0.00 - 05 58 00 EXPANSION JOINT COVER ASSEMBLIES 60,630 60,630 0.25 - 0.00 - 06 10 00 ROUGH CARPENTRY 41,790 13,450 0.06 28,340 1.40 - 07 21 00 THERMAL INSULATION 13,567 1,758 0.01 11,808 0.58 - 07 50 00 MEMBRANE ROOFING 417,492 52,156 0.21 365,336 18.00 - 07 60 00 SHEET METAL FLASHING AND TRIM 31,782 10,999 0.05 20,783 1.02 - 07 92 00 JOINT SEALANTS 76,587 76,287 0.31 300 0.01 - 08 11 00 STEEL DOOR & FRAMES 9,100 5,400 0.02 3,700 0.18 - 08 41 00 ALUMINUM ENTRANCES AND STOREFRONTS 319,700 28,200 0.12 291,500 14.36 - 08 44 13 GLAZED ALUMINUM CURTAIN WALLS 249,840 249,840 1.03 - 0.00 - 08 71 00 DOOR HARDWARE 14,300 8,800 0.04 5,500 0.27 - 09 00 00 INTERIOR CONSTRUCTION 319,186 75,629 0.31 243,557 12.00 - 09 21 16 GYPSUM SYSTEMS 8,580 8,580 0.04 - 0.00 - 09 90 00 PAINTING 249,693 249,093 1.03 600 0.03 - 10 44 00 FIRE-PROTECTION SPECIALTIES 6,000 5,000 0.02 1,000 0.05 - 11 12 00 PARKING CONTROL EQUIPMENT 800,000 800,000 3.29 - 0.00 - 14 20 00 ELEVATORS 195,000 195,000 0.80 - 0.00 - 21 00 00 FIRE PROTECTION 134,379 134,379 0.55 - 0.00 - 22 00 00 PLUMBING 966,448 804,077 3.31 162,372 8.00 - 23 00 00 HVAC 179,149 179,149 0.74 - 0.00 - 26 00 00 ELECTRICAL 4,774,194 4,415,934 18.17 223,261 11.00 135,000 31 20 00 EARTH MOVING 288,888 100,305 0.41 - 0.00 188,583 31 63 00 DRILLED PIERS 577,006 577,006 2.37 - 0.00 - 32 12 16 ASPHALT PAVING 80,553 - 0.00 - 0.00 80,553 32 13 13 CEMENT CONCRETE PAVING 188,464 - 0.00 - 0.00 188,464 32 93 00 EXTERIOR PLANTS 25,000 - 0.00 - 0.00 25,000 33 10 00 WATER DISTRIBUTION 35,000 - 0.00 - 0.00 35,000 33 30 00 SANITARY SEWERAGE 20,000 - 0.00 - 0.00 20,000 33 40 00 STORM DRAINAGE 35,000 - 0.00 - 0.00 35,000 33 46 16 FOUNDATION DRAINAGE SYSTEMS 11,169 11,169 0.05 - 0.00 - subtotal 29,248,506 24,612,509 101.29 2,352,788 115.92 2,283,209 Contractor's Fee 4% 1,169,940 984,500 4.05 94,112 4.64 91,328 subtotal 30,418,446 25,597,010 105.34 2,446,899 120.56 2,374,537 Design/Estimate Contingency 15% 4,562,767 3,839,551 15.80 367,035 18.08 356,181 subtotal 34,981,213 29,436,561 121.14 2,813,934 138.64 2,730,718 Escalation to Mid-Point - 07/31/2024 11.7% 4,089,007 3,440,884 14.16 328,925 16.21 319,198 TOTAL 39,070,220 32,877,445 135.30 3,142,859 154.85 3,049,915 46,111$ /Car Alternates: Alternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIP (668,431)$ 20,296 SF242,988 SF Page 1 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 02 41 00 DEMOLITION Site Demo Sidewalk/Entrances :: 14,795 SF ::1.00 : 14,795 Sawcut :: 568 LF ::10.00 :5,680 Demo Curb and Gutter :: 870 LF ::4.00 :3,481 Demo Asphalt Paving :: 29,905 SF ::0.75 : 22,429 Demo Retaining Wall :: 135 LF ::7.50 :1,013 Remove Trees/Tree Wells ::15 EA :: 750.00 : 11,250 Salvage Street Lights ::13 EA :: 500.00 :6,500 Salvage Parking Meters ::11 EA :: 300.00 :3,300 Demo West Garage SOG/Foundations :: 32,918 SF ::3.75 : 123,441 Demo E Garage CIP Steel Structure :: 131,670 SF ::2.25 : 296,258 Demo East Garage SOG/Foundations :: 19,316 SF ::3.75 : 72,434 Demo E Garage CIP Post Tensioned Structure :: 57,947 SF ::2.75 : 159,355 Demo One Story Building :: 8,819 SF ::6.00 : 52,911 Demo Two Story Building :: 5,725 SF ::7.50 : 42,941 Haul Off :: 19,690 CY ::30.00 : 590,694 -------------------- 1,406,482 03 30 00 CAST-IN-PLACE CONCRETE Pier Caps :: 122 CY :: 700.00 : 85,050 Grade Beam :: 726 CY :: 675.00 : 490,350 Continuous Wall Footing ::14 CY :: 700.00 :9,506 Elevator Pit Mat - 24":: 160 SF ::20.00 :3,209 Elevator Pit Walls 12":: 161 SF ::60.00 :9,680 CIP Foundation Wall - 12":: 10,427 SF ::58.00 : 604,773 CIP Elevator Shaft/Stair Wall - 10":: 3,446 SF ::55.00 : 189,539 CIP Interior Screen Wall - 10":: 6,446 SF ::65.00 : 419,006 SOG - Garage Flat :: 43,867 SF ::6.25 : 274,168 SOG - Garage Ramp :: 13,638 SF ::7.00 : 95,463 SOG - Storage/Retail :: 21,176 SF ::6.50 : 137,645 Islands/Curbs :: 1,168 SF ::6.00 :7,005 PT Structural Slab/Beams/Columns - Flat :: 135,345 SF ::60.00 : 8,120,723 PT Structural Slab/Beams/Columns - Ramp :: 26,982 SF ::65.00 : 1,753,812 CIP Stairs/Columns ::7 FL :: 28,500.00 : 199,500 -------------------- 12,399,430 0 03 45 00 ARCHITECTURAL PRECAST CONCRETE Precast Wall Panels w/Brick Veneer :: 17,344 SF ::75.00 : 1,300,800 -------------------- 1,300,800 0 04 20 00 UNIT MASONRY 8" CMU Backup :: 1,020 SF ::24.00 : 24,480 8" CMU Backup - Retail :: 6,516 SF ::24.00 : 156,384 -------------------- 180,864 Page 2 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 05 12 00 STRUCTURAL STEEL Beams and Columns - Stairs/Office Storage Roof ::13 TN :: 7,500.00 : 100,023 Beams and Columns - Retail Roof ::91 TN :: 6,500.00 : 593,671 -------------------- 693,694 05 31 00 STEEL DECK Roof Decking - Retail :: 20,296 SF ::3.00 : 60,889 Roof Decking - Stairs/Office/Storage :: 2,455 SF ::8.00 : 19,643 -------------------- 80,532 05 50 00 METAL FABRICATIONS Miscellaneous Steel :: 242,988 SF ::0.75 : 182,241 -------------------- 182,241 05 52 00 PIPE & TUBE RAILINGS Galvanized Metal Guard Rail :: 499 LF :: 400.00 : 199,784 Cable Guard Rail :: 2,000 LF :: 250.00 : 499,889 Galvanized Wall Rail ::89 LF :: 110.00 :9,737 -------------------- 709,410 05 58 00 EXPANSION JOINT COVER ASSEMBLIES Traffic Expansion Joint :: 674 LF ::90.00 : 60,630 -------------------- 60,630 06 10 00 ROUGH CARPENTRY Roof Blocking :: 1,793 BM ::7.50 : 13,450 Roof Blocking - Retail :: 3,779 BM ::7.50 : 28,340 -------------------- 41,790 07 21 00 THERMAL INSULATION Rigid Insulation at Perimeter SOG :: 703 SF ::2.50 :1,758 Rigid Insulation at Perimeter SOG - Retail :: 4,723 SF ::2.50 : 11,808 -------------------- 13,567 07 50 00 MEMBRANE ROOFING Roof/Insulation at Office/Storage :: 930 SF ::20.00 : 18,609 Roof/Insulation at Retail :: 20,296 SF ::18.00 : 365,336 Roof/Insulation at Stairs/Elev :: 1,525 SF ::22.00 : 33,548 -------------------- 417,492 07 60 00 SHEET METAL FLASHING AND TRIM Coping - Office/Storage :: 141 LF ::22.00 :3,095 Coping - Stairs/Elevator :: 300 LF ::25.00 :7,508 Coping - Retail :: 945 LF ::22.00 : 20,783 Counter Flashing - Stairs ::22 LF ::18.00 :396 -------------------- 31,782 Page 3 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 07 92 00 JOINT SEALANTS HM Frame ::11 EA ::60.00 :660 Slab Joint Sealants :: 242,988 SF ::0.25 : 60,747 Exterior Precast :: 2,530 LF ::6.00 : 15,180 -------------------- 76,587 08 11 00 STEEL DOOR & FRAMES Exterior HM Door - Insulated ::13 EA :: 450.00 :5,850 HM Frame 3x7 ::9 EA :: 290.00 :2,610 HM Frame 6'x7'::2 EA :: 320.00 :640 -------------------- 9,100 08 41 00 ALUMINUM ENTRANCES AND STOREFRONTS Aluminum Storefront :: 336 SF ::75.00 : 25,200 Aluminum Storefront - Retail :: 3,300 SF ::75.00 : 247,500 Aluminum Entrance Door & Frame ::1 EA :: 3,000.00 :3,000 Aluminum Entrance Double Door - Retail ::8 EA :: 5,500.00 : 44,000 -------------------- 319,700 08 44 13 GLAZED ALUMINUM CURTAIN WALLS Aluminum Curtainwall :: 2,630 SF ::95.00 : 249,840 -------------------- 249,840 08 71 00 DOOR HARDWARE Door Hardware ALLOW ::13 EA :: 1,100.00 : 14,300 -------------------- 14,300 09 00 00 INTERIOR CONSTRUCTION Interior Construction - Office :: 930 SF ::60.00 : 55,827 Interior Construction - Stairs :: 1,980 SF ::10.00 : 19,802 Interior Construction - Retail Shell :: 20,296 SF ::12.00 : 243,557 -------------------- 319,186 09 21 16 GYPSUM SYSTEMS Furring :: 1,320 SF ::6.50 :8,580 -------------------- 8,580 09 90 00 PAINTING (Painting of Garage Structure/Walls Not Included) :::::0 Seal Garage Floors :: 221,761 SF ::0.95 : 210,673 Paint Gyp Board Walls :: 1,020 SF ::1.10 :1,122 Paint HM Frames ::11 EA ::55.00 :605 Paint HM Doors ::13 EA ::65.00 :845 Miscellaneous Painting :: 242,988 SF ::0.15 : 36,448 -------------------- 249,693 Page 4 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 10 44 00 FIRE-PROTECTION SPECIALTIES FE ::20 EA :: 250.00 :5,000 FE - Retail ::4 EA :: 250.00 :1,000 -------------------- 6,000 11 12 00 PARKING CONTROL EQUIPMENT Gated Operation w/One Nest (Cost by Others) ::1 LS :: 800,000.00 : 800,000 -------------------- 800,000 14 20 00 ELEVATORS Passenger Elevator - 3 Stop, Glass Rear ::1 EA :: 195,000.00 : 195,000 195,000 21 00 00 FIRE PROTECTION Dry Pipe Fire Sprinklers in Garage Basement :: 13,249 SF ::4.50 : 59,620 Fire Sprinklers - Office :: 930 SF ::4.00 :3,722 Fire Sprinklers - Retail Shell :: 20,296 SF ::3.50 : 71,038 -------------------- 134,379 22 00 00 PLUMBING Garage :: 221,761 SF ::3.50 : 776,164 Office :: 930 SF ::30.00 : 27,913 Retail :: 20,296 SF ::8.00 : 162,372 -------------------- 966,448 23 00 00 HVAC Garage - Basement Ventilation/CO Detection :: 13,249 SF ::8.00 : 105,990 Office :: 930 SF ::35.00 : 32,566 Retail :: 20,296 SF ::2.00 : 40,593 -------------------- 179,149 Page 5 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 26 00 00 ELECTRICAL Site Electrical Service Allow ::1 LS :: 60,000.00 : 60,000 Site Lighting Allow ::1 LS :: 75,000.00 : 75,000 Lighting :: :::0 Garage :: 221,761 SF ::4.00 : 887,044 Office :: 930 SF ::10.00 :9,304 Retail :: 20,296 SF ::5.00 : 101,482 Power 0 Garage :: 221,761 SF ::3.00 : 665,283 Office :: 930 SF ::8.00 :7,444 Retail :: 20,296 SF ::1.50 : 30,445 Distribution Garage :: 221,761 SF ::8.00 : 1,774,088 Office :: 930 SF ::7.00 :6,513 Retail :: 20,296 SF ::3.00 : 60,889 Telecommunications Garage :: 221,761 SF ::0.50 : 110,881 Office :: 930 SF ::2.50 :2,326 Retail :: 20,296 SF ::0.50 : 10,148 Fire Alarm Garage :: 221,761 SF ::3.00 : 665,283 Office :: 930 SF ::4.50 :4,187 Retail :: 20,296 SF ::3.00 : 60,889 Security System Garage :: 221,761 SF ::1.00 : 221,761 Office :: 930 SF ::1.00 :930 Retail :: 20,296 SF ::1.00 : 20,296 -------------------- 4,774,194 31 20 00 EARTH MOVING Clear Site :: 2.44 AC :: 1,500.00 :3,658 Site Cut/Fill :: 15,932 CY ::10.00 : 159,321 Grade Concrete Paving :: 2,352 SF ::0.35 :823 Grade Sidewalks :: 18,935 SF ::0.30 :5,681 Backfill Curb and Gutter :: 1,029 LF ::4.50 :4,630 Grade Asphalt Paving :: 642 SY ::1.25 :803 Grade Building :: 78,681 SF ::0.50 : 39,340 Foundation Excavation :: 3,187 CY ::10.00 : 31,872 Foundation Backfill :: 1,940 CY ::15.00 : 29,093 Finish Grade Site ::52 SY ::5.00 :258 Temporary Erosion Control :: 2.44 AC :: 5,500.00 : 13,411 -------------------- 288,888 Page 6 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL 31 63 00 DRILLED PIERS Drilled Piers :: 796 CY :: 725.00 : 577,006 -------------------- 577,006 32 12 16 ASPHALT PAVING Asphalt Paving - Patch at Diagonal Parking :: 642 SY ::40.00 : 25,700 Asphalt Paving - Patch at New Curb :: 593 LF ::12.00 :7,113 Parking Striping :: 713 EA ::30.00 : 21,390 Parking Striping at Diagonal Parking ::34 EA ::25.00 :850 Reinstall/New Parking Meters ::34 EA :: 750.00 : 25,500 -------------------- 80,553 32 13 13 CEMENT CONCRETE PAVING Sidewalk :: 18,935 SF ::7.50 : 142,013 Concrete Paving :: 2,352 SF ::11.00 : 25,876 Curb & Gutter :: 1,029 LF ::20.00 : 20,576 -------------------- 188,464 32 93 00 EXTERIOR PLANTS Misc Landscaping :: 1 LS :: 25,000.00 : 25,000 -------------------- 25,000 33 10 00 WATER DISTRIBUTION Allow :: 1 LS :: 35,000.00 : 35,000 -------------------- 35,000 33 30 00 SANITARY SEWERAGE Allow :: 1 LS :: 20,000.00 : 20,000 -------------------- 20,000 33 40 00 STORM DRAINAGE Allow for Connections/Modifications ::1 LS :: 35,000.00 : 35,000 -------------------- 35,000 33 46 16 FOUNDATION DRAINAGE SYSTEMS Perimeter Foundation Drain :: 1,596 LF ::7.00 : 11,169 -------------------- 11,169 Page 7 of 8 DESCRIPTION :: QUANTITY :: UNIT $ : TOTAL Alternates: Alternate 1 - Provide for Precast Garage Structure in Lieu of Post Tensioned CIP Delete the Following: PT Structural Slab/Beams/Columns - Flat -135,345 SF 60.00 -8,120,723 PT Structural Slab/Beams/Columns - Ramp -26,982 SF 65.00 -1,753,812 CIP Elevator Shaft/Stair Wall - 10"-3,446 SF 55.00 -189,539 CIP Interior Screen Wall - 10"-6,446 SF 65.00 -419,006 CIP Stairs/Columns -7 FL 28,500.00 -199,500 Add the Following:0 Topping Slab 162,327 SF 6.50 1,055,126 Precast Dbl-Tee w/Beams and Columns - Flat 135,345 SF 50.00 6,767,269 Precast Dbl-Tee w/Beams and Columns - Ramp 26,982 SF 55.00 1,483,995 Precast Screen Wall 3,446 SF 55.00 189,539 Precast Elevator/Stair Walls 6,446 SF 50.00 322,313 Add Sheer Walls 5,229 SF 55.00 287,577 Precast Stairs/Columns 7 FL 22,500.00 157,500 Slab Joint Sealants 242,988 SF 0.20 48,598 General Requirements 1 LS (129,732.54) -129,733 -------------------- subtotal (500,397) Contractor's Fee 4%(20,016) subtotal (520,413) Design/Estimate Contingency 15%(78,062) subtotal (598,475) Escalation to Mid-Point - 07/31/2024 11.7%(69,957) TOTAL (668,431) Page 8 of 8