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HomeMy Public PortalAboutOrd. 546 Flood Hazard ZoneORDINANCE NO. AN ORDINANCE RELATING TO THE FLOOD HAZARD ZONE OF THE CITY OF McCALL, IDAHO; ADDING CHAPTER 28 TO TITLE III OF THE VILLAGE CODE OF McCALL, IDAHO; PROVIDING FOR A STATEMENT OF PURPOSE; ADOPTING THE FLOOD INSURANCE RATE AND FLOOD INSURANCE STUDY BY REFERENCE: PROVIDING DEFINITIONS; ESTABLISHING THE BOUNDARIES OF AREAS OF SPECIAL FLOOD HAZARD; PROVIDING A JURISDICTIONAL STATEMENT; ESTABLISHING A DEVELOPMENT PERMIT; DESIGNATING AN ADMINISTRATOR AND THE .ADMINISTRATOR'S DUTIES; ESTABLISHING STANDARDS Fr- THE GENERAL REDUCTION OF FLOOD HAZARD; ESTAB- L—HINGSTANDARDS FOR REDUCTION OF FLOOD HAZARD IN AREAS OF SPECIAL FLOOD HAZARD; DEFINING FLOODWAYS AND PROVIDING STANDARDS IN FLOODWAY AREAS; PROVIDING FOR SEVERABILITY AND DECLARING AN EMERGENCY. BE IT ORDAINED BY THE MAYOR AND COUNCIL OF THE CITY OF McCALL, IDAHO, AS FOLLOWS: Section 1. That Title III of the Village Code of McCall, Idaho, be, and the same is hereby amended by the addition thereto of a new chapter to be known and designated as Chapter 28, and to read as follows: 3-28-1: STATEMENT OF PURPOSE: It is the purpose of this ordinance to promote the public health, safety, and general welfare, and to minimize public and private losses due to flood conditions in specific areas by provisions designed: (A) To Protect human life and health; (B) To minimize expenditure of public money and costly flood control projects; (C) To minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the ex- pense of the general public; (D) To minimize prolonged business interruotions; (E) To minimize damage to Public facilities and utilities such as water mains, electric, telephone and sewer lines, streets, and bridges located in areas of special flood hazard; (F) To help maintain a stable tax base by providing for the sound use and development of areas of special flood hazard so as to minimize future flood blight areas; (G) To ensure that potential buyers are notified that property is in an area of snecial flood hazard; and, (H) To ensure that those who occupy the areas of special flood hazard assume responsibility for their actions; (I) To establish a flood hazard zone which shall be an overlay zone. 3-28-2: ADOPTION OF FLOOD INSURANCE RATE AND FLOOD INSURANCE STUDY: The City of McCall hereby adopts by reference the flood insurance rate maps and flood insurance study as compiled by the Federal Emergency Management Agency for the City of McCall, effective date of which is April 17, 1989, and three copies of which are available for public review at the office of the City Clerk, City Hall, City of McCall. 3-23-3: DEFINITIONS: Unless specifically defined below, words or phrases used in this ordinance shall be interpreted so as to give them the meaning they have in common usage and to give this ordinance its most reasonable application. (A) "AREA OF SPECIAL FLOOD HAZARD" means the land in the flood plain within a community subject to a one percent or greater chance of flooding in any given year. Designation on maps always includes the letters A or V. (B) "BASE FLOOD" means the flood having a one percent chance of being equalled or exceeded in any given year. Also referred to as the "100 -year flood." Designation on mans always includes the letters A or V. (C) "Development" means any man-made change to improved or unimproved real estate, including but not limited to build- ings or other structures, mining, dredging, filling, grading, paving, excavation or drilling operations located within the area of special flood hazard. (D) "FLOOD or "FLOODING" means a general and temporary condition of partial or complete inundation of normally dry land areas from: (1) The overflow of inland or tidal waters and/or (2) The unusual and rapid accumulation of runoff of surface waters from any source. (E) "FLOOD INSURANCE RATE MAP (FIRM)". means the official map on which the Federal Insurance Administration has delin- eated both the areas of special flood hazards and the risk premium zones applicable to the community. (F) "FLOOD INSURANCE STUDY" means the official report provided by the Federal Insurance Administration that includes flood profiles, the Flood Boundary-Floodway Map, and the water surface elevation of the base flood. (G) "FLOODWAY" means the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than one foot. (H) "LOWEST FLOOR" means the lowest floor of the lowest enclosed area (including basement). An unfinished or flood resistant enclosure, usable solely for parking of vehicles, building access or storage, in an area other than a basement area, is not considered a building's lowest floor, provided that such enclosure is not built so as to render the structure in violation of the applicable non -elevation design require- ments of this ordinance found at Section 3-28-6(B)(1)(b). (I) "MANFACTURED HOME" means a structure, transportable in one or more sections, which is built on a permanent chassis and is designed for use with or without a Permanent foundation when connected to the required utilities. For flood plain management purposes the term "manufactured home" also includes park trailers, travel trailers, and other similar vehicles placed on a site for greater than 180 consecutive days. For insurance purposes the term "manufactured home" does not include park trailers, travel trailers, and other similar vehicles. -2- (3) "NEW CONSTRUCTION" means structures for which the "start of construction" commenced on or after the effective date of this ordinance. (K) "START OF CONSTRUCTION" includes substantial improve- ment, and means the date the building permit was issued, provided the actual start of construction, repair, reconstruc- tion, placement or other improvement was within 180 days of the permit date. The actual start means either the first placement of permanent construction of a structure on a site, such as the pouring of slab or footings, the installation of piles, the construction of columns, or any work beyond the stage of excavation; or the placement of a manufactured home on a foundation. Permanent construction does not include land preparation, such as clearing, grading and filling; nor does it include the installation of streets and/or walkways; nor does it include excavation for a basement, footings, piers, or foundation or the erection of temporary forms; nor does it include the installation on the property of accessory buildings, such as garages or sheds not occupied as dwelling units or not part of the main structure. (L) "STRUCTURE" means a walled and roofed building in- cluding a gas or liquid storage tank that is principally= above ground. (M) "SUBSTANTIAL IMPROVEMENT" means any repair, re --- construction, or improvement of a structure, the cost of which equals or exceeds 50 percent of the market value of the structure either: (1) before the improvement or repair is started, or (2) if the structure has been damaged and is being restored, before the damage occurred. For the purposes of this definition "substantial improve- ment" is considered to occur when the first alteration of any wall, ceiling, floor, or other structural part of the building commences, whether or not that alteration affects the ex- ternal dimensions of the structure. 3-28-4: GENERAL PROVISION: (A) LANDS TO WHICH THIS ORDINANCE APPLIES. This ordinance shall apply to all areas of special flood hazards within the corporate limits of the City of McCall, Idaho. (B) BASIS FOR ESTABLISHING THE AREAS OF SPECIAL FLOOD HAZARD. The areas of special flood hazard identified by the Federal Insurance Administration in a scientific and engineering report entitled "The Flood Insurance Study for McCall, Idaho", dated April 17, 1989, with accompanying Flood Insurance Maps is hereby adopted by reference and declared to be a part of this ordinance. The Flood Insurance Study is on file at the office of the city clerk, McCall City Hall, 216 Park Street, P. O. Box 1065, McCall, Idaho 83638. -3- 3-28-5: ADMINISTRATION: (A) ESTABLISHMENT OF DEVELOPMENT PERMIT. (1) Development Permit Required A development permit shall be obtained before construction or development begins within any area of special flood hazard established in Section 3-28-4(B). The permit shall be for all structures including manufactured homes, as set forth in the "DEFINITIONS", and for all development including fill and other activities, also as set forth in the "DEFINITIONS". (B) DESIGNATION OF THE OFFICE OF MAYOR AS ADI?INIST?TOR. The Mayor or his designee is hereby appointed to administer and implement this ordinance by granting or denying develop- ment permit applications in accordance with its provisions. (C) DUTIES AND RESPONSIBILITIES OF THE ADMINISTRATOR. Duties of the Mayor or his designee shall include, but not be limited to: (1)Permit Review (a) Review all development permits to determine that the permit requirements of this ordinance have been satisfied. (b) Review all development permits to determine that all necessary permits have been obtained from those Federal, State, or local governmental agencies from which prior approval is required. (c) Review all development permits to determine if the proposed development is located in the floodway. If located in the floodway, assure that the encroachment provisions of Section 3-28-6(C)(1) are met. (2) Use of Other Base Flood Data When base flood elevation data has not been provided in accordance with Section 3-28-4(B), BASIS FOR ESTABLISHING THE AREAS OF SPECIAL FLOOD HAZARD, the Mayor or his designee obtain, review, and reasonably utilize any base flood elevation and floodway data available from a federal, State or other source, in order to administer Sections 3-28-6(B), SPECIFIC STANDARDS, and 3-28-(C), FLOODWAYS. (3) Information to be Obtained and Maintained (a) Where base flood elevation data is provided through the Flood Insurance Study or required as in Section 3-28-5(C)(2), obtain and record the actual elevation (in relation to mean sea level) of the lowest floor (including basement) of all new or substantially improved structures, and whether or not the structure contains a basement. (b) For all new or substantially improved floodoroofed structures: (i) verify and record the actual elevation (in relation to mean sea level), and (ii) maintain the permits required in Section 3-28-5(C)(1). (c) Maintain for public inspection all records pertaining to the provisions of this ordinance. -4- (4) Alteration of Watercourses (a) Notify adjacent communities and the Idaho Department of Water Resources prior to any alteration or relocation of a watercourse, and submit evidence of such notification to the Federal Insurance Administration. (b) Require that maintenance is provided within the altered or relocated portion of said watercourse so that the flood carrying capacity is not diminished. (5) Interpretation of FIRM Boundaries Make interpretations where needed, as to exact location of the boundaries of the areas of special flood hazards (for example, where there appears to be a conflict between a mapped boundary and actual field conditions).The person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation. Such anneals shall be granted_ consistent with the standards of Section 60.6 of the rules and regulations of the National Flood Insurance Program 3-28-6: PROVISIONS FOR FLOOD HAZARD REDUCTION: (A) GENERAL STANDARDS. In all areas of special flood hazards, the following standards are required: (1) Anchoring (a) All new construction and substantial improvements shall be anchored to prevent flotation, collapse, or lateral movement of the structure. (b) All manufactured homes must likewise be anchored to prevent flotation, collapse or lateral movement, and shall be installed using methods and practices that minimize flood damage. Anchoring methods may include, but are not limited to, use of over -the -top or frame ties to ground anchors (Reference FEM ' s "Manufactured. Home Installation in Flood Hazard Areas" guidebook for additional techniques). (2) Construction Materials and Methods (a) All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage. (b) All new construction and substantial improvements shall be constructed using methods and practices that minimize damage. (c) Electrical, heating, ventilation, plumbing, and air- conditioning equipment and other service facilities shall be designed and/or otherwise elevated or located so as to prevent water from entering or accumulating within the components during conditions of flooding. (3) Utilities (a) All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system; -5- (b) New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharge from the systems into flood waters; and, (c) On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding. (4) Subdivision Proposals (a) All subdivision proposals shall be consistent with the need to minimize flood damage; (b) All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical, and water systems located and constructed to minimize flood damage; (c) All subdivision proposals shall have adequate drainage provided to reduce exposure to flood damage; and, (d) Where base flood elevation data has not been provided or is not available from another authoritative source, it shall be generated for subdivision proposals and other proposed developments which contain at least 50 lots or 5 acres (which- ever is less). (5) Review of Building Permits Where elevation data is not available either through the Flood Insurance Study or from another authoritative source .3-28-5 (C)(2). Applications for building permits shall be re- viewed to assure that proposed construction will be reasonably safe from flooding. The test of reasonableness is a local judgment and includes use of historical data, high water marks, photographs of past flooding, etc., where available. Failure to elevate at least two feet above grade in these zones may result in higher insurance rates. (B) SPECIFIC STANDARDS In all areas of special flood hazards where base flood elevation data has been provided as set forth in Section 3-28-4(B), BASIS FOR ESTABLISHING THE AREAS OF SPECIAL FLOOD HAZARD or Section 3-28-5(C)(2), Use of Other Base Flood Data, the following provisions are required: (1) Residential Construction (a) New construction and substantial improvement of any residential structure shall have the lowest floor, including basement, elevated to or above base flood elevation. (b) Fully enclosed areas below the lowest floor that are subject to flooding are prohibited, or shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for the entry and exit of floodwaters. Designs for meeting this requirement must either be certified by a registered professional engineer or architect or must meet or exceed the following minimum criteria: (i) A minimum or two openings having a total net area of not less than one square inch for every square foot of enclosed area subject to flooding shall be provided. -6- (ii) The bottom of all openings shall be no higher than one foot above grade. (iii) Openings may be equipped with screens, louvers, or other coverings or devices provided that they permit the automatic entry and exit of floodwaters. (2) Nonresidential Construction New construction and substantial improvement of any com- mercial, industrial or other nonresidential structure shall either have the lowest floor, including_ basement, elevated to the level of the base flood elevation; or, together with attendant utility and sanitary facilities, shall: (a) be fioodproofed so that below the base flood level the structure is watertight with walls substantially imperm- eable to the passage of water; (b) have structural components capable of resisting hydrostatic and hydrodynamic loads and effects of buoyancy; (c) be certified by a registered professional engineer or architect that the design and methods of construction are in accordance with accepted standards of practice for meeting provisions of this subsection based on their development and/ or review of the structural design, specifications and plans. Such certifications shall be provided to the official as set forth in Section 3-28-(5)(C)(3)(b). (d) Nonresidential structures that are elevated, not flood - proofed, crust meet the same standards for space below the lowest floor as described in 3-28-6(B)(1)(b). (e) Applicants floodproofing nonresidential buildings shall be notified that flood insurance premiums will be based on rates that are one foot below the floodproofed level (e.a. a building constructed to the base flood level will be rated as one foot below that level). (3) Manufactured Homes All manufactured homes to be placed or substantially im- proved within Zones A1-30, AH, and AB shall be elevated on a permanent foundation such that the lowest floor of the manu- factured home is at or above the base flood elevation and be securely anchored to an adequately anchored foundation system in accordance with the provisions of subsection 3-28-6(A)(1)(b). (C) FLOODWAYS Located within areas of special flood hazard established in Section 3-28-4(B) are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of flood waters which carry debris, potential projectiles, and erosion potential, the following provisions apply: (1) Prohibit encroachments, including fill, new construction, substantial improvements, and other development unless certi- fication by a registered professional engineer or architect is provided demonstrating that encroachments shall not result in any increase in flood levels during the occurrence of the base flood discharge. -7- (2) If Section 3-28-6 (C) (1) is satisfied, all new con- struction and substantial improvements shall comply with all applicable flood hazard reduction provisions of Section 3-28-6 PROVISIONS FOR FLOOD HAZARD REDUCTION. 3-28-7: SEVERABILITY: If any section, subsection, sentence, clause or phrase, or portion of this ordinance is for any reason held invalid or unconstitutional by any court of competent jurisdiction, such portion shall be deemed as a separate, distinct and independent provision, and such holding shall not affect the validity of the remaining portions hereof. 3-28-8: EMERGENCY DECLARED: An emergency existing therefor, which emergency is hereby declared to exist, this ordinance shall be in full force and effect upon its passage, approval and publication hereof. Passed and approved this /;.?-----day of Gov� , 1989. Attest: City Clem STATE OF IDAHO ) COUNTY OF VALLEY) CERTIFICATE OF RECORDING OFFICER ss I, the undersigned, the duly appointed, qualified, City Clerk of McCall City, Idaho, do hereby certify the following: 1. That pursuant to the provisions of Section 50-207, Idaho Code, I keep a correct journal of the proceedings of the Council of McCall City, Idaho, and that I am the statutory custodian of all laws, ordinances and resolutions of said City. 2. That the attached Ordinance No. 5p is a true and correct copy of an ordinance pa sed at a regular meeting of the Council of McCall City held on / , 19 , and duly recorded in my office; and J 3. That said regular meeting was duly convened and held in all respects in accordance with law and to the extent required by law, due and proper notice of such meeting having been given; that a legal quorum was present throughout the meeting and that a legally sufficient number of members of the Council of McCall City voted in the proper manner and for the passage of said ordinance; and that all other requirements and proceedings incident to the proper adoption and passage of said ordinance have been duly fulfilled, carried out and observed; and that I am authorized to execute this certificate. IN WITNESS WHEREOF, I have hereunto set my hand and affixed the offici,!j. seal f the City of McCall, Idaho, this / day of �� f , 19 87. (Seal of the City) Arthur J. Schni't, City Clerk