Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My Public Portal
About
1987-11 Coastal Element Of The Comprehensive Plan-DRAFT
COASTAL MANAGEMENT ELEMENT OF THE COMPREHENSIVE PLAN FOR VILLAGE OF BAL HARBOUR DADE COUNTY, FLORIDA NOVEMBER, 1987 Prepared By: HENRY VON OESEN AND ASSOCIATES, INC. Consulting Engineers & Planners 805 North Third Street --P. o. Drawer 2087 Wilmington, North Carolina 28402 (919) 763-0141 wpreparation of this Planning Document was aided through financial assistance received from·the State of Florida under the Local Government Comprehensive Planning Assistance Program authorized by Chapter 86-187, Laws of Florida and administered by the Florida Department of community Affairs.w 3 216 ( 091087) SEG'ION 1: 1.1 1.2 1.3 SECI'ION 2: 2.1 2.2 Table of O>ntents ~IlJCI'ION ..••••.•.•.•.••••....•..•••••.••..•• •:• ...•.••••.• 1-1 Pl an PUri;:x:>se •••••••••••••••••••••••••••••••••••••••••••••••• 1-1 Sooi;::e ••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-1 Coordination With :caoo County Plan •••••••••••••••••••••••••• 1-2 ~rm .AREA ••••••••••••••••••••••••••••••••••••••••••••••• 2-1 Boundaries of Planning Area ................................. 2-1 Brief History of Bal Haroour Village •••••••.••••••••••••••• _.2-1 ~P 2.1: Bal Haroour Villaga study Area SECI'ION 3: NA'IURAL RESCORCES OF 'IHE BAL HARBOOR AREA ••••••••••••••••••• 3-1 3 .1 Geooral ••..•.....•••.....••...•.....•.•...........•......... 3-1 3.2 Vegetative CO'iTer and Wetlands •••••••••..•.•••••••••••••.•••• 3-1 3.2.1 3.2.2 3.2.3 Historical Pers~ctive ....•..........•..•......•...• 3-1 Vegetative Cover ..•••.••.•.•••••••..•..•..•..•.••••• 3-2 .l!quatic and Terrestrial Wildlife •••••••••••••••••••• 3-2 Table 3.2.3.1: Endangered or 'Illreatened Species, Bal Hartcur Villaga Area SECI'ION 4: LAND USE IN.TENIDRY AND ANALYSES •••••••• : •••••••••••••••••••• 4-1 4.1 Ex.isting LallCl use ••••••••••••••••••••••••••••••••••..••••••• 4-1 4.2 Water-Dependent and water-Related Uses •••••••••••••••••••••• 4-1 4.3 Future Land use/Developnent Potential •••••••••••••••.••••••• 4-1 4 .4 Zoning ......•.............•.........•....................... 4-2 SECTION 5: 5.1 5.2 5.3 5.4 ~p 4.1.1: Existing Land Use Map of Bal Hartcur 'Iable 4 .1.1: Existing Land use IJ111entory, Bal Harbour ~p 4.4.1: zoning District ~p, Bal Harl:x:>ur Villaga, Florida FSIUARINE WATER OOALITY/roLLOTirn AND SHORELINE ••••••••••••• 5-1 Ge.I'lE!ral ••••••••••••••••••••••••••••••••••••••••••••••••••••• 5-1 Water Quality Standards •.•••••••..•.•.••.•...•••••••..•••... 5-2 water Quality/Existing Conditions ••••••••••••••••.•••••••••• 5-2 Sources of Pollution ••••••••.•••.••••••••••.••.••.•.•.•••••. 5-3 5.4.1 5.4.2 Known Point Sources of Estuarine Pollution •••••••••• 5-3 Non-Point (Diffuse) Sources of Estuarine ~llution ........................................... 5-3 Table of Contents, Continued Page 2 5.5 Impa.ct of ProIX)sed Land Uses and Facilities on the Estuary ••••••••••••..••••••••••••••••••••••••••••••••••• 5-4 ·5 .5 .1 New POint and Non-POint Sources of :t:ollution •••••••• 5-4 5 .6 State, Regional, and LOcal Regulatory Programs to Reduce Estuarine POllution •••••••••••••••••••••••••••••••••• 5-4 5.7 Estuarine Shoreline Dev'elopnent Controls •••••••••••••••••••• 5-6 K:ip 5.1.1: Unit 1, Biscayne Bay JI.qua.tic Preserve Table 5 .2.1: Applicable Dade County and Florida State water Quality Standards for Biscayne Bay Table 5.3.1: Prer,.railing water Quality Values In Biscayne Bay for 1979-84 M:tp 5.4.1.1: LOcations of stormwater outfalls at Bal Harbour Village M'ip 5.7.1: Shoreline Developnent Review Boundary SECTION 6: BFACH AND IUNE S'YSTEMS •••••••••••••••••••••••••••••••••••••• 6-1 6 .1 <:;erier al. ••••••••••••••••••••••••••••••••••••••••••••••••••••• 6-1 6.2 Historical Perspective •••••••••••••••••••••••••••••••••••••• 6-1 6.3 Beach Remurishment ••••••.•••••••••••.•••••••••••••••••••••• 6-3 6.4 Analysis of Beach and Dune Protection Measures •••••••••••••• 6-9 Figure 6.1.l: Typical Beadi Profile 1986 Bal Haroour Village Table 6.3.1: History of Beach Nourishnents Bal Harbour, Dade County, Florida Figure 6 .3 .1: Beach Restoration Project: Under : construction and;Q)mpl.eted K:tp 6.4.1: Dade county Construction Control Line Bal Harbour Village, Northern Segnent Map 6.4.2: Dade County Construction Control Line Bal Haroour Village, Southern Segnent Table of O:>ntents, Continued Page 4 Figure 8.4.4.1: Framework for El/acuation Decision Making Table 8.4.4.1: Bal Harl::our Village Roadway R:>int Pre-Landfall Haza+d Times for Various Category Hurricanes Figure 8.4.4.2: Evacuation Time Components Table 8 .4 .4. 2: Definitions of Evacuation Time Ccmp:ments Table 8.4.5.1: Dade County Hurricane Evacuation Levels Figure a·:4. 6 .1 Hurricane Refuges SECTION 9: POST DISASTER PLANNlNG CONCERNS AND (D!Sr~ HIGH HAZARD .AREAS •••••••••••••••••••••••••••••••••••••••••••••••• 9-1 9. l Gereral. •••••.••.•...••.••••.••••.••••••.•••.•••••••••••••••• 9-1 9 .2 Damage Assessnents and Federal Disaster Assistance Pr'og-r am ••••••••••••••••••••••••••••••••••••••••••••••••••••• 9-2 9 • 3 R:>st Disaster Planning Concerns Relative to the High SEX:l'ION 10: 10.1 10.2 SECTION 11: 11.1 11.2 Hazard Area •••••••••••• : •••••••••••••••••••••••••••••••••••• 9-7 ·Figure 9.2.1: Damage Survey Report (r:ER) PUBLIC ACCESS••••••••••••••••••••••••••••••••••••••••••••••l0-1 Inventory of Existing Facilities •••••••••••••••••••••••••••• 10-1 Arlalysis of ruture Needs •••••••••••••••••••••••••••••••••••• 10-2 Vn:LAGE lliFRASTROC'ItJRE ••••••••••••••••••••••••••••••••••••• 11-1 ~ral .... ·· ................................................ 11-1 Existing Facilities ••••••••••.•••.••..••.•..•.••.......••••• 11-l 11.2.1 11.2.2 11.2.3 11.2.4 11.2.5 11.2.6 Roads, Bridges and causeweys •••••••••••••••••••••••• 11-1 Sanitary Saver Facilities ••••••••••••••••••••••••••• 11-3 Potable Water Systen •••••••••••.•••••••••••••••••••• 11-3 Drainage 5ystem ••••••••••••••••••••••••••••••••••••• ll-3 Solid Waste M:ina.9=IDent •••••••••••••••••••••••••••••• ll-4 Shore Protection Structures and Beach Reoourishment Projects .•••••••.•••••••.•••••••••••.• 11-4 SECTION 1: INTRODUCTION 1.1 ~Jg.IL~~~pg~~ The Local Government Comprehensive Planning Act of 1975 (LGCPA Chapter 163, Florida State Statutes) requires that each· county and incorporated municipality in the State of Florida prepare and adopt a Comprehensive Master Plan to guide and control their future growth and development. Local Units of government located in the coastal area are required to include a Coastal Management Element in their Comprehensive Plans. This document is designed to fulfill this requirement. The purpose of this element is to plan for and, where appropriate, restrict development activities where such activities would damage or destroy coastal resources, and protect human life and limit public expenditures in areas that are subject to destruction by natural disasters. 1.2 S~QP~ The coastal Management Element contains the following data and analyses: • Current land use • Future land use • Inventory and analysis of the impacts of development and redevelopment on natural and cultural resources. • water quality assessment. • Infrastructure analysis. • Natural disaster planning. 1 - 1 SECTION 2: PLANNING AREA 2.1 B9~D~9Il~~-gt_Fl9DDln_g_AI~9 The Bal Harbour Planning Area of Dade County is shown on Map 2.1. Basically the area is bounded on the north by Baker's· Haulover Cut/Inlet, on the east by the Atlantic Ocean, on the south by 96th Street and the west by Indian Creek and Biscayne Bay. 2.2 Bii~t_Hi~~Qiy_gt_~9l_Hg~bg~i_Ylllg9~ Until 1930 the area that ·now comprises the Village was an uninhabited barrier beach backed by a mangrove swamp. Before the Village was incorporated, the land was owned by a group of Detroit industrialists. The group included the Graham Brothers, who at one time manufactured Dodge trucks and later the popular Graham-Paige car; the Fisher Brothers of the Fisher Body Company; and the Briggs family. Operating under a corporation named "Miami Beach Heights, Inc.," the developera leased the entire area of what is now Bal Harbour Village to the U.S. Government for one dollar during World War I. Here, over two million men were trained. They were quartered in Miami Beach hotels. The entire area was fenced in and, in addition to rifle ranges, mess halls, etc., a prisoner of war camp was erected on the site where the prestigious Bal Harbour Shops are now located. Other portions of the land were used for radio towers and a tent city for training purposes. 2 - 1 -:it~ {i ,1 ·•i{ i /I ,,. J ·-.. t N ~ ~ .) .... ,,,, ,:, -A~:ii,/·· (2... :l·-:,:-~,.,,,. . w; _, ---, . . o.L -m • I I{, '···er -_____ :.. , . ,, B akers auwu -,· --'/. -,.-:C '',,/ .i,, !'_;/ c:•-c-r-~, ,, \ BAL HARBOOR ,JG , ,,,,·, •-STUDY AREA -~--'t, ._. r : .. ,. ~/ \. ' ·'r;,., Y'. ~ ' _..,. Flat 9..,, .· , · , I .::.: ~1/.. '<li t . ,,~lei.'5i;;; it ,,. / i /. I ,,,, I,) .t_ / .·. ' •V . . . I -.~. . ,, 9,. . ' ·.. ' / V ' , ' ' ,/ ,,. -.-_, l / Qt ---II -=-~~, ,• W • I ., • j ~' ,f ,-. To i · .cr-: o"I;-/ :Y~. ~. ,'· 4 ~ ~ ~ ' , •'-.• , --;/ (j ~ , . '? . .. ,.,/ ·\ . ----,--::-" . I -----:---·-· · .. E ld~~ighl i .. , ,. ., fu . . "' ;i : 34 ~ I~ I ndian Cree k '{.ill ·o It " (~ : Goll ~• 1~ Course ~;. ~ .. ~\\ ,s 9-:C~ ¥, * I ! ~.;ac a \\ // ~:s,11> MAP 2.1 ir I BAL HARBOUR VILLAGE STUDY AREA ~ i:::: ~ ~ ~ ~ 25°52 1 30" 8()0 07'?1)II After the war, the Corporation regained possession of the land and proceeded to develop the Village. _The Corporation had retained the services of the Harland Bartholomew firm of St. Louis,. before the war. This firm conceived the present layout of Bal Harbour and recommended comprehensive zoning that was adopte·d and adhered to. In 1945 without a building in existence in Bal Harbour other than the barracks left by the U. s. Military, the Village was incorporated. However, Florida law required 25 male voters be residents in order to form a municipality. In order to comply with this State law, Miami Beach Heights, Inc. converted the barracks into apartments. Military personnel and their families· who• were looking for reasonable accommodations moved in and the Village ·of Bal Harbour .was formed. 2 - 2 SECTION 3: NATURAL RESOURCES OF THE BAL HARBOUR AREA 3 .1 .G.e.M.t.al This section concentrates on the biological resources of the Bal Harbour Village area. Other sections of this plan provide· detailed discussions of other important natural resources. The ecology of Biscayne Bay and Indian Creek is discussed in the estuarine pollution section (Section 5). Beach and dune systems are discussed in Section 6 following. Extraction of mineral resources does not occur in the Bal Harbour Village Planning Area, except for the occasional dredging of sand to renourish the beach or to maintain navigation channels. Air quality and· potable water supply are outside the scope of this element. However, a brief addressment of water supply is given in Section 11, Village Intrastructure. 3 • 2 Y.e.s.e.ta..tl.YsL.C.Q.Y.e.r_.a.n..d....W.e.tl~ 3.2.1 Hl~tQ.rj~.a.J._£.e.t~p.e~.ti.Y.e Before the development of Bal Harbour Village, the area consisted of a beach dune complex facing the Atlantic Ocean backed by mangroves on tidal creeks confluent with Biscayne Bay. A Florida State Land survey map dated 1870 shows the estuarine shoreline of Bal Harbour lined with mangroves. A 1914 Dade County map shows the same features as the earlier land survey map. By 1925 Baker's Haulover cut had been dredged by local interests and the mangroves along most of the Bal Harbour shoreline had been cut and the area filled for land development 3 - 1 extensive development not all of the land based species will find suitable habitat at Bal Harbour. The beach at Bal Harbour provides a potentially important nesting area for green sea turtles and loggerhead sea turtles. In addition, leatherback and hawksbill sea turtles may us~ the beach for nesting sites. Other animals inhabiting beach and fordune areas are semipalmated plover, piping plover, black-bellied plovers, ruddy turnstone, willet, least sandpiper, western sandpiper, sanderling, common tern, least tern, royal tern, black skinner, herring gull, laughing gull, ring-billed gull, and old field mouse. The secondary dunes are habitat for the old-field mouse, anoles, coachwhip and racer. The open waters of Biscayne Bay, the nearshore waters of the Atlantic Ocean, and Baker's Haul over Inlet connecting these two waterbodies are inhabited by numerous fish. The tables in Appendix A list the fish known to inhabit the area and the suffix after the common name indicates which waterbody they commonly inhabit. Within the Bay itself many of the fish are associated with the seagrass beds, especially as juveniles. The seagrass beds are also important nursery areas for shrimp, stone crabs, spiny lobsters, and blue crabs. The seagrass beds provide grazing areas for seaturtles and manatees. In the nearshore Atlantic Ocean, the most significant habitat are the limestone reefs. These reefs are colonized by various corals, sponges, tube worms and anemones. These reefs are inhabited by numerous species of invertebrates and fishes. In deeper water, fish normally associated with the Caribbean are 3 - 3 TABLE 3.2.3.1 ENDANGERED OR THREATENED SPECIES BAL HARBOUR VILLAGE AREA ~Q.IDID..Q D_ fl.§.ID.e .S..t.§..tJ.l..§=.F.G.FN.F~ ..S-t.s.t.u.s= JJ.SW.S .Fi.s.b.e.s sscl .... l Snook NL Rivulus SSC NL .R~.P..tj.l.e..§ Leatherback E E Gopher Tortoise-2 .... I SSC NL Green Turtle E E Hawksbill E E Loggerhead T T Atlantic Ridley .E E Atlantic Sa~ ,arsh Snake E T Indigo Snak .... T T American Crocodile-2 .... I E E American Alligator SSC T .IU.r_g_s Brown Pelican T E Little Blue Heron SSC NL Reddish Egret SSC NL Snowy Egret SSC NL Louisana Hjr~n SSC NL Wood Stork .... E UR Roseate s,09bill SSC NL Bald Eagl .... T E Peregrine FalconJ..._/ E E American Kestrel <.F .... ~_.p_gJ.l.l.JJ..s_..QnlY) T NL American oystercatcher SSC NL Roseate Tern T NL Least Tern T NL Burrowing ow1J .... / SSC NL ~.Il'.!Ilgl_s Black Bear.2..t./ T NL River O]t7r2 .... / NL UR Panthe.2 _._ E E Bobcat ..._/ NL UR Manatee E E Sperm Whj~_./ E E Sei Whal .... E E Finback Whal~ .... / E E Humpback WhaleJ..._/ E E Atlantic Right Whal~ .... / NL E -------------------------l .... l E -Endangered; T -Threatened; SSC -Species of Special Concern; NL -Not Listed; UR -Under Review. 2 .... 1 Formerly occured; no longer inhabits study area • .LI Transient visitor to planning area. Sources: Florida Game and Freshwater Fish Commission (FGFWFC) U.S. Fish and Wildlife Service (USFWS). SECTION 4: LAND USE INVENTORY AND ANALYSBS 4.1 Ezl.stlDs_L9D~-~.sg Bal .Harbour Village consists of about 250 acres of land. The existing land uses at Bal Harbour Village are shown on· Map 4.1.1.· The land uses depicted on the map are basically self explanatory and consist of the following classes: low density residential (up to 6 units/acre), medium density residential (up to 35 dwelling units/acre), high density residential/resort (up to 55 dwelling units/acre), commercial, municipal, recreational, open space, beachfront, bay bottom, institutional and streets and highways. The acreages of land associated with each of these· classes are indicated in Table 4.1.1. The largest percentage of the area (25.8 percent) is devoted to low density residential use with high density uses running a close second at 19.7 percent. 4 • 2 .Wiitg.r=Dg_pgD.~l~D.t-ii.ruL.W.2-t~.r=.B.gl-iitg_g_,ll.sg.s The following water-dependent uses occur at Bal Harbour: water dependent recreation (swimming beach), fishing pier (jetty at Haulover Inlet) and a private marina. In addition, the water-related uses ·of commercial resorts and waterfront parcels/ recreation areas including a beachfront jogging path occur at Bal Harbour. 4.3 E~t~.r~_LED~-~.sgLDgy~Jg_p~~Dt_~gtgDtj_gj. Bal Harbour Village is almost completely developed. Only a very few (less than ten) vacant residential lots remain to be 4 - 1 TABLE 4.1.1 EiISTING LAND USE INVENTORY BAL HARBOUR VILLAGE Low Density Residential 75.54 Medium Density Residential 21.os High Density Residential/Resort 57.61 Commercial 17.05 Municipal 3.35 Recreational 10.64 Open Space 7.52 Beachfront 18.21 Bay Bottom 39.21 Institutional 0.53 Streets and Highways _Jl~.22 Total (Acres) 292.33 Total Land Area Excluding Bay Bottom 253.12 25.8 7.2 19.7 5.8 1.2 3.6 2.6 6.2 13.4 0.2 14.3 l~I Source: Based on planimetering of Land Use Map furnished by Ludovici & Orange Consulting Engineers. developed in the low density zone. In the high density zone paraileling the beachfront there is only one large t~act consisti-ng of Lot 9 and one half of Lot 8 which is undeveloped. The only other large tract on the oceanfront which could be developed is that own~d by the Bal Harbour Beach Club. This· tract called tract "A" consisting of 5.2 acres was reserved for use as the Club determined for a period of not more than twenty (20) years from January 1, 1945 and for other purposes. Now that the reserve period has lapsed it is possible it could be sold for development. The potential future development' of these tracts will provide the Town an opportunity to negotiate with developers for additional public beach access points and possibly off-street parking to supplement that which currently exists. 4.4 Z-onJ.ng The Village of Bal Harbour passed and adopted a zoning ordinance on 29 June 1974·. Section 4 of the ordinance established eleven (11) zoning districts in order "to regulate and restrict the construction, reconstruction, alteration, location and use of buildings, structures, land and water, for trade, profession, residence, or other purposes, and the location thereof, and to regulate the size of buildings and other structures hereafter erected or altered, to regulate and determine the size and dimensions of yards, courts and other open spaces and to regulate and limit the percentage occupancy and the 4 -2 density of population1." The Village of Bal Harbour is divided into the following .S,YID.b.9l R-1 R-2 PC RM-1 RM-2 RM,;..3 RM-4 RM-5 OF B p districts:. D.i.s..t.ri.~.t.s Single Family Residential Single Family Residential Private Club Multiple Family Residential Multiple Family Residential Multiple Family Residential Multiple Family Residential Multiple Family Residential Ocean Front Business District Off-Street Parking Tna districts are shown on the zoning map (see Map 4.4.1). 1. source: zonin_g_~_rdinance~-~al_Harbour yjlla~~-fJQrjga 1987. 4 -3 SECTION 5: ESTUARINE WATER QUALITY/POLLUTION AND SHORELINE DEVELOPMENT 5 .1 ~~.M..t.s..l The Bal Harbour Village Planning Area contains a part of Biscayne Bay, a large estuary which stretches from north Miami to Key Largo. Biscayne Bay is connected to the Atlantic Ocean in the area through Baker'-s Haulover Cut. The segment of the Bay contingent with the study area is a part of Unit No. l of the Biscayne Bay Aquatic Preserve (Chapter 16Q-18, Florida Administrative Code). This aquatic unit covers an open water area of 3.5 square miles and includes all submerged lands and publicly owned parcels on islands within the Preserve. This unit extends from Sunny Isles Causeway on the north to Broad Causeway on the south (see Map 5.1.1). Circulation in this segment of the Bay is governed,primarily by flow into and out of Haulover Cut. Approximately half of the ·water that enters this aquatic unit on an i'ncoming tide is flushed back• out into the Ocean on the outgoing tide. The remainder begins a slow (approximately two week} period of flowing in a generally southerly direction until it is finally washed out Government Cut. The Snake Creek Canal which discharges an average of 248 gallons per day through the S-29 structure on the west side of Maule Lake, is the major source of freshwater flowing into Unit 1. Other freshwater sources are the Oleta River, Arch Creek and Little Arch Creek. 5 - 1 . · ... :· ... •' . · .. ,' .. :·· D l' I z' .t I -.. I ,q-I . I . ·:/_'-~)? ~.c::_=:__=:_~ .. CAUSEWAY ":,:::::· . .. : . :~ ' \'~·:·:·:<.·.:.··:~·:.:.::· ;. ··•·;, '•• --~ "' ~ , V , AQUATIC PRESERVE . . . . . . . . MANAGEMENT AREA f' ... ~i· -,:· -;:·,-:,;,~,.; .-.;.:.,.-· • 6 O.E.R. WATER QUALITY SAMPLING STATl()\I LOCATION MAP 5.1.1 UNIT I , BISCAYNE BAY AQUATIC PRESERVE SOJRCE : BISCAYNE BAY AQUATIC PRESERVE MANAGEMENT PLANT (DRAFT) METRODAOE COUNTY PLANNING DEPARTMENT ( 1986) This section is devoted to discussion of estuarine water quality! pollution and regulati~ns governing estuarine shoreline develo~ent at Bal Harbour Village. 5.2 N~~~~-QJJ.sJ.j~y-~t$.rul$i~~ Water quality standards applicable to the estuarine waters of the study area are summarized in Table 5.2.1. 5.3 Jig~~~-~~9JjtyLEzj~~lD.9-~~.ngj~j~M The Department of Environmental Resources Management of Metropolitan Dade County has been monitoring the waters of Biscayne Bay including the Bal Harbour Village area with physical, chemical and biological indicators since 1979. Samples are collected monthly at 48 stations distributed throughout the Bay. Two (2) of the stations Cnwnbered 6 and 7) are located in the immediate vicinity of Bal ·Harbour Village. Their approximate positions are shown on Map 5.1.1 above. Table 5.3.1 summarizes the data of record for the period of March 1979 through December 19841 for the two (2) pertinent stations. The results indicate good to excellent water quality in general. All parameters are within water quality standards. These results can be attributed in part to the good flushing characteristics afforded by Baker's Haulover Cut. 1. Latest available published information as of this writing. S -2 TABLE 5.2.1 APPLICABLE mDE OOUNrY AND FLORIDI\ STATE WATER QUALITY STJ\Nll2\Rt6 FOR BISCAYNE BAY.LI A. Dade County (Chapter 24 Dade Count,y Code) • Ammonia (rng/Ll • Coliform organisns <MPN/100 ml) • Co:r;per (rng/Ll • Dissolved Oxygen <mg/L) • Iron (rng/L) • Lead Cmg/Ll • Turbidity (JaJ) • Zinc Cmg/L) 0.5 as N 1,000 0.4 5 during at least 10 hours per 24-h:>ur period, never less than 4, unless acceptable data indicate that the natural reckground dissolved oxygen is lower than the values established herein 0.3 0.35 50, except after heavy rains 1.0 B. state of Florida <Chapter 17-3· Florida Administrative Code> • Cadniun (ug/Ll • Cop_?:!r (mg/L) • Dissolved Oxygen (mg/Ll • Fecal coliform <Mm or MF /100 ml) • Iron (rng/L) • Lead (mg/Ll 5.0 0.015 Shall mt average less than 5 in a 24-hour period and shall n~er re less than 4 Shall not exceed a monthly average of 200, nor exceed 400 in 10 percent of the samples, nor exceed 800 on any one day 0.3 0.05 LI Source: Biscayne 8sY and Miami River: A water Q,lality Sun:mar:y <1987> Department of Environmental Resources Management, Metropolitan Dade County, Miami, Florida. 'mble 5.2.1, o:mtinued s. state of Florida <Cha.pt.er 17-3 Florida Administrative COde), continued • Nutrients • Total Coliform CMFN or MF/100 ml) • Turbidity (NTU) • Zinc (rng/L) In no case shall nutrient concentrations of a t:ody of water te altered so as to cause an imbalanoo of natural populations of a:;i:uatic flora or fauna Shall not exooed a count of 1,000 as a monthly a11erage, nor exooed 1,000 in more than 20 percent of the samples excJT1ined during a.rw month, nor exceed 2,400 at any time 29 abol7e tackground 1.0 SaAlpl i ng Station ID No, 6 7 Salinity D.0. (o/ool (Rig/LI 33 34 6 6 Turbidity TNR (NTU) (lllQ/L) 1 2 3 3 TABLE 5.3.1 PREVAILING WATER QUALITY VALUES IN BISCAYNE BAY FOR 1979-84 Color Osanl un Copper ( PCUl I PCU) I uo/Ll 5 5 0.03 0.7 Iron Leed Zinc l.!!.el1J. I ug/LI I ug/ Ll 4 o.s 10 Alnnlonie l mQIL NJ 0.08 0.06 Ni trete (mg/L NJ 0.02 0.01 ,,, .. Phosphate (n,g/L PJ 0.010 0.010 Tatel Col I fo,_ Median (/100 ml) 10 8 Maxi mi.wt (/100 ml] 220 300 Fecal Col ifom Median 1/100 a,l] 2 2 Moximun 1/100 ml) 53 285 Source: ~je_cayna Bay and Mieroi Rhar; A Water O.uellty Summary (1907), Oeper tllent of Enviromental fleeourcaa Management, Hetropol1ten Dede County, Miami, Florida. 5.4 .5.9~~~~~-QJ_2Qll~iJ9D 5.4.1 .Kn.Q.b1.ll.,.2Qj.n.t_~Q.Y.r~~9-QJ_~~~~~XJ.M_29ll~tjQD The draft of the Biscayne Bay Aquatic Preserve Management Plan identifies some 115 stormwater outfalls greater than twelve (12) inches in diameter tha~ drain into Aquatic Unit 1 of Biscayne Bay. The second largest in the area, a 54-inch storm drain is located in Bal Harbour Village at Eaulover Cut. The locations of all known stormwater outfalls at Bal Harbour Village are shown on.Map 5.4.1.1. 5.4.2 N9.n::-29J_ru:_JDjiJ~~~l-SQfil~~9_9J_~t_wu-j.og_2Qll~~l9D The Metropolitan Dade County 208 Plan completed in 1980 identified stormwater runoff as the principle source of non-point source pollution. Recent research has established that the first flush associated with rainfall and runoff carries pollutants to surface waters. Specific pollutants in stormwater include petroleum residues from parking lots and streets, animal feces, pesticides, herbicides, silt~ etc. In addition to stormwater runoff, marinas such as the Bal Harbour Yacht Club Marina could be viewed as a non-point source of estuarine pollution due to historic problems such facilities have had with spills of petroleum products, disposal of untreated sewage from"marine heads", and concentrations of heavy metals in bottom sediments. Specific data on the degree of pollution from such non-point sources of pollution at Bal Harbour is not available. 5 -3 s.s lIDpg~.t_Q~_PJ;QPQ~gg_LEng_~~g~_.fil).g_F~~jJj,tjg~_Q.IL.t~g_,E.s,tJ,lgxy 5.5.1 Ng~_pQjn,t_AD.Q_~QD=2QlD.t_~Q~X~~a_QJ_pgJJJJ..t.lQD In view of the fact that Bal Harbour Village is nearly 100 percent developed, no new point or non-point sources of pollution ar_e anticipated. The level of use of the marina is expected to· remain at or near the current level. The estuarine bottom under the marina can be expected to remain contaminated from hydrocarbons and heavy metals associated with vessels moored at the marina. 5. 6 .S.tg.t~.!_Fg.gj.QDgJ.£_gfilLLQ~.aJ._Jie_g_y..lg,tQJ;y_PXQ.9.I.§.ID~-.tQ_Eg_g~~g ~~t~AJ:jng_pgll~.tlQD State pollution regulation is largely vested in the Florida Department of Environmental Regulation CFDER). The FDER regulates dredge and fill of waters of the State and adjacent wetlands. Dredge and fill permitting is done in accordance with similar federal permitting. FDER also regulates discharges of pollutants into natural or artificial bodies of water. FDER establishes water quality standards, sets minimum treatment requirements, issues permits, licenses operations of wastewater treatment plants, administers construction grants for sewage treatment plants and regulates discharges of storrnwater. A special permit program can be used to obtain long term permits for dredging deep water ports. FDER and the water management districts regulate the withdrawal, diversion, storage, and consumption of water, with 5 -4 the water management districts responsible for most of the permitting and operational aspects. ' FDER certifies the siting ~f power. plants and must consi9er the cooling water needs and environmental impacts of the proposed power plant. The Department of Natural Resources (FDNR) is also involved in controlling estuarine pollution. The FDNR is responsible for selling or leasing State owned submerged lands if the sale or lease is "not contrary to the public interest." The proposed use of the conveyed or leased submerged land must not "interfere with the conservation of fish, marine or wildlife, or other natural resources." Deeds or leases may contain restrictions on dredging and filling. The FDNR is also responsible for managing the aquatic preserves around state. These preserves are state owned submerged lands which the state wishes to maintain in "an essentially natural condition." Special requirements pertain to the sale or lease of state owned submerged land within the aquatic preserves. A management plant for each preserve _has or will be prepared. such a plan has been prepared for the Biscayne Bay Aquatic Preserve which includes the estuarine waters surrounding Bal Harbour Village. The FDNR also regulates exploration, drilling, and production of oil, gas, or other petroleum products, including drilling in estuaries. 5 - 5 waterfront to respect the coastal environment, and to orient or re-orient shoreline uses and buildings to the water; and e. To avoid monotony in building heights and widths and ap~earances along the developed areas of shoreline and,· above all, to avoid further walling off of the shoreline through appropriate site preparation and landscape design; and f. To prevent the siting of uses along the bayshore that are incompatible with adjacent in-water and developed areas; and g. To encourage the retention and use of native plant· materials along the shoreline;-and h. To provide landscaping in the viewing corridors and shoreline setback areas that focuses views toward the water; and i. To create or r.ecreate over the next few decades a natural soft edge and greenbelt-like quality along the bay shoreline; and j. To plan and design new developments or make improvements to existing developments in a manner that will enhance the view and enjoyment of the water and shoreline area from the street, from the· water, from within the develoµnent and overlooking the development; and k. To encourage the integration of existing historic structures and features in new shoreline developments. The ordinance established a boundary of applicability 5 - 7 _ .SHORELINE DEVELOPMENT REVIEW BOUNDARY. AS DEFINED ... ___ _ AND REFERENCED IN SECTION 2 ( 10) OF THE ORDINANCE AMENDING CHAPTER 33D (BISCAYNE BAY MANAGEMENT) OF THE CODE OF METROPOLITAN DADE COUNTY, FLORIDA / / / / / ... / . . /BAL·· -· / · HARBOJR BISCAYNE BAY. ___ ;·'.~;:\//~-:--\-,:_:;_.:..; .... :.·: ... ,,,., .·_·O -f:) (ti / / / '. /. . ~/. ~/ ~i' / / / / / ./ / / BAKER'S HAULOVER .. INLET ·r -N :.:_ ·_· ~::!l!i~ .. , .. -:: .. _.\:'/'/.'·'.. : !!•1, .-:t . . f ·····••··.··t)}i"~·p:,}t1:t / / I / / / / ... . / .. ;".'..t•t .. • / ·,• • ,' 01.!· ~:,::-/ . . . / / / .. / . / / / / ll!J BOUNDRY REVIEW AREA ~l-.r---.--~l.f--t,-o+.it!,+}.f. _r_._, · _ .. -... ·'!"'.~·..Ii..-.... ~: .. :.:_~!~· -1· ':·;:.. '.;d~}:::k,~~:-:;·:;4:~:~~~s>J' • ,: •: :~::••':: .:_:•d .. , .. _•)••• .=• "': . .. . :.';. ~. :.~.:· ~ ·{.~=· -~:~./.:,:..'"• / ;. ... MAP 5.7.1 (3) (4) Works Manual as may be amended or supplemented from time to time, or any comparable section of a municipal code or public works manual, or The installation or construction of floating structure Cs) other than floating docks, or The installation or construction of a fixed structure(s) above proposed or existing docks or piles requiring a Class 1 Coastal Permit public hearing. d. Plans for any site or area which lies wholly or partially within the Shoreline Development Review Boundary. The review committee is charged with ascertaining whether a proposed project is consistent with the Dade County Comprehensive Development Master Plan, the Biscayne Bay Aquatic Preserve Act (Florida Statutes, Chapter 258.165) and applicable county or municipal codes, as well as·the provisions of the ordinance itself. Section 8 of the ordinance conta1ns certain criteria which must be satisfied in order for a project to be approved, namely: ( l) l:'Li.ni.ID.YlIL.S.b.2.r.e.lJ.ruL.S.e.t..b_g_c_k~ A minimum shoreline setback of twenty-five (25') feet for structures not exceeding thirty-five {35') feet in height. For building· elevations exceeding 35 feet, the minimum setback will be increased by fifty percent of the additional height of the building up to a maximum setback of seventy-five (75') feet. No buildings, accessory uses or above-grade 5 - 9 SECTION 6: BEACH AND DUNE SYSTEMS 6 .1 ~~M .. BU Bal Harbour has 4,477.53 linear feet of sandy beach along the Atlantic Ocean. Beach width averages 200 feet. Figure 6.1.l shows a typical 1986 beach profile at the approximate midpoint of the beach located about 2,200 feet south of the jetty at Baker's Haulover Cut. The natural dune system at Bal Harbour was destroyed during the development process as discussed in the following section. Presently, the beach is backed by a rnanmade dune averaging twelve (12) feet (MSL) in height. 6.2 £j~~g~j~.ru,_2~~~~~~~jy~ According to information compiled by the Jacksonville District of the u. s. Army Corps of Engineers the Dade County shoreline from Baker's Haulover Cut to Government Cut has undergone several advances and recessions over the period of 1867 to the present. During the period 1867 to 1919, the ·shorel1ne from Government Cut to Baker's Haulover Inlet advanced an average of 168 feet. This same reach receded an average of 107 feet over the period 1919 to 1928. Then the shoreline in the area advanced about 52 feet during the period 1927-28 to 1961. Thus, for the period 1867 to 1961, the shoreline in the area receded and advanced in almost equal distribution. Shoreline positions in the period beginning in 1928 were influenced to a large degree by the practice of installing seawalls seaward of the shoreline, and backfilling behind the wall. The shoreline was thus advanced to 6 - 1 ,-----~· L~ ,=, ~ ,-. -------·--- ./'v#J .. ,,._, r·{ ••. -.. .. -⇒::_ ' ·-·•· ----~;£ _:~:~'t=--. -~~ ~~ .. ~roi · . ..:.:: .. 7j!: ·---I-, -·-·-· -- ~¥~-- -11 ----· :i..,i f----..'..<:: ___ ,.,. --·i-il ·-... -O>I ,;;:I -Ill :·.:~':f\1-. ···+-;~~-=- .. i-=,.-.. ~==== l-- ------...- HO _.. .. ----::~:J ··.·: --£ ~%;~1.:~: ~~~~•·· ~:_ .. ·=~1 :~J~~ ·t-- ·-+- -- o~=-<:.:7'.l ··••--I•'\:~~ --..: -- ...... • .... '".+- 1-·· -- -~ ·-==1 --1 --:-+.:... ~- l-=----=--::...c_.: . • "---I • ·-·-·-... --~-- --1 :. __ ------::-:::j::: -----1-:..:.:.=::j:-__ =!=: . ·"-""i.~_l;~=o...~5~\f,-~~~~-'----------~,. .. ::s ---.;: ~w _ ... J _ ... -.... t ::::··---~ ·---!-'----- f-t-·-·-·· r ·-·· - :..:E:L ·i :e~cr,~-"J , · ' ' ~.7 bt.JR -JR r::'X/ • :-:--- '-">A·- 1----·-· ---i=• --~- - ·•-·-• ... .... :.j'~.' -- ----- -- FIGURE 6.1.1 TYPICAL BEACH PROFILE 1986 BAL HARBOUR VILLAGE the extent that the wall was located seaward of the existing shoreline. By the e?rly 1960's the shorelin~ at high tide was generally located at: the toe of the collective bullcheads at Bal Harbour, only a low tide beach remained. The introduction of these vertical structures along the active beach zone increased the erosion rate since reflected wave energy emanating from these structures steepened the offshore slopes fronting these structures allowing higher wave energy to reach them. With the beginning of the real estate boom in south Floriqa and at Bal Harbour Village, the delicate balance existing between the natural erosive and accretive forces was upset. to accommodate and maximize oceanfront devel oprnent, many natur a1· dunes were destroyed to make way for hotels, boardwalks, roads, and houses. In many places, dunes were bulldozed away merely to provide picture window views of the ocean. Although natural dunes erode during storms, they are basically a reservoir of sand which absorbs the energy of waves and surges which overtop the berms. Therefore, this unchecked development resulted in the destruction of the last natural line of defense .against the waves and surges generated by storms. With reduced beach areas and more erosive forces at work, an attempt was made to stabilize the rapidly developing oceanfront by constructing groins. These steel and timber walls were built out into the longshore currents in the hope of reducing erosion of the diminishing precious sand as it moved along the beach. These efforts were unsuccessful as they prevented any new supply of sandy materials from reaching the beach. 6 -2 To stabilize ocean entrances along the eastern Florida coast, jetties were built and navigation channels deepened to aia larger and.more numerous commercial and recreational craft ta harbor. In every instance, these harbor structures interrupted the alongshore movement of sand.thus reducing the amount of available material to nourish downdrift beaches. This resulted in a deficiency of material reaching the Dade County coastline. This condition was aggravated with the construction of-Baker's Haul over Inlet in 1925 by local interests. This artificial cuf was made to provide navigable access as well as to reduce the pollution levels of North Biscayne and Dumbfoundling Bays. Since its construction, little, if any, material has been transported· across the inlet to nourish the shoreline extending south to Government cut. The construction of Government Cut has not been detrimental to the adjacent beach to the north (Mi~i Beach). Since its construction, larger amounts of material were impounded in this location. However, these long jetties and deep navigation channels have starved the adjacent shores to the south of sand and these shores have eroded. 6.3 l\~1\~.b_,Re.D.Q..IJJ,"j.§.b.ID~fil In an effort to control erosion at Bal Harbour, several beach nourishment fills were made by local interests and/or the Corps of Engineers over the period of September 1960 to July 1969. These actions are summarized in Table 6.3.1. A total of approximately 320,000 cubic yards of sand was placed on the beach during this period. Also, a concrete membrane, rubble-mound 6 - 3 TABLE 6.3.l HIS'roRY OF BEACH N:XJRISH~/ BAL HARBOOR, DADE <DUNI'Y, FLORID Quantity of sand 1P;;~~ of Acti~~ Naur ishment COntr acting <cost/CY) Agency Remarks 9/~1/60 11/12/60 86,000 cy Dade county Bal Haroour re-@ ($0 .93/cy) imbursed Dare co. in amount of $80,000 3/27/61 29,00il1' Dade county Paid for by Dade (NIA) COt.mty ($18,000) 3/17/63 · 3/30/63 50,000 cy Dade county Bal Harbour paid @ ($0.80/cy s20,ooo: Dade county paid $20,000 12/64 1/65 18,000 cy U.S. Arrey COrps county paid 5 0% (NIA) of Engineers 8/16/68 10/68 106,247 cy Bal Harbour Bal Harbour paid @ ($1.00/cy) Village $106,274 plus engineering 7/25/69 Approx. u.s. corps Spoil f rem Inland 30,000 cy of Engineers waterway· (not (NIA) & Bal Harbour dlarged) Village Total Quantity= 319,247 cy L( source: Henry von Oesen and Associates, Inc./Zurwelle--whittaker, Inc., necanber 1970. Preliminary Engineering Report, Beach Restoration Project, Bal Harbour village, Florida, Annex o. 2.il NIA= Information not available. groin 140 feet long was installed by Dade County in 1960 about 300 feet south of the south jetty ~t Baker's Haulover Inlet. The groin was installed to assist Jn anchoring the beach fills deposited south of the inlet and to reduce the amount of material entering the inlet during flood tides and periods of drift reversal. This effort was basically unsuccessful due mainly to the fact that the material dredged from the inlet and sound was fine sand easily suspended by dynamic wave action and carried offshore by currents. In March, 1967 the u.s. Army corps of Engineers completed a cooperative beach erosion control study and an interim hurricane survey of the Dade County Beaches. According to a syllabus of· the study prepared by the corps, the purpose of the beach erosion and hurricane protection study was to determine the most practicable and economic method of restoring adequate recreational and protectiv~ beaches and providing continued stability of the ocean shore from Government cut to the north county line in Dade county, Florida, and to develop an adequate plan of protection against hurricane tidal flooding in the area between Government Cut and Baker's Haulover Inlet. The Corps found that the shoreline in the study area had been eroded by ocean wave action and currents and that dune protection from a major storm was lacking. A severe hurricane crossing the area on a critical path could cause a major flood disaster. Improvement of the shore and dunes was needed to provide adequate beach erosion control and hurricane protection. Because of the 6 -4 very limited natural supply of beach material reaching the area, _periodic beach nourishment would be required. The study disclosed that the most practicable plan of improvement to serve the dual purpose of beach erosion control and hurricane protection would involve artificial placement of fill to form a protective beach and dune for the reach between Government Cut and Baker's Haulover Inlet, and a protective beach only for Haulover Beach Park. The considered plan of improvement for the reach between Haul over Beach Park the north county line was not economically justified and adoption of a federal project therefor was not warranted. The improvements considered for the reach between Government Cut and Baker's Haulover Inlet and for Haulover Beach Park were economically justified for adoption of a Federal project. The plan of improvement for the two latter reaches involved placement of an estimated quantity of about 14,800,000 cubic yards of fill. Stability of the shore would be accomplished by periodic replenishment of losses. The estimated ·total first cost, exclusive of preauthorization studies, in 1967 dollars, was $29,500,000. The annual cost of periodic nourishment was estimated at $488,000. An additional amount of fill needed landward of the project limit was judged to be a non-Federal requirement and thus to be assumed by the local units of government. Early implementation of the Corps' Dade County project was subsequently delayed by the lack of appropriation of federal funds and the apparent lack of interest by the other participating local units of government. In recognition of the 6 - 5 fill with a maximum life span. The s'tudy also presented a design concept for a curved jetty ext;:ension at Baker's Haulov.er Inlet. The State of Florida and Dade :County assured Bal Harbour Village that they would cooperate and participate in the project. Plans were reviewed and approved by the State, County and the Corps of Engineers. The renourishrnent project began in 1973 with placing an estimated 1,625,000 cubic yards of beach fill, extended back to the existing bulkheads. The south jetty at Baker's Haulover Inlet was extended to a length of about 800 feet with a curved end section. Also, five adjustable groins were constr.ucted in the fill section to help retain beach nourishment materials in the renourished Bal Harbour frontage. A 1,200-foot transition fill on the south end was included in the project to encourage a normal drift line and adjustment during the resorting processes and throughout the life of the project. Existing drainage structures, groins arid pipelines on the -beach were removed. Prior to the project, approximately fifty pipelines discharged storm and cooling water onto the beach from bulkheads. The discharge of these waters across the beach had contributed substantially to the loss of material on the beach. They were replaced by an interceptor pipeline to discharge a11 · drainage "into the inlet. The jetty was included as a containment structure for the north end of the beach fill. It was designed to limit the erosion effects of tidal flows through Baker's Haulover Inlet. The outer 300 feet curves southward to deflect alongshore 6 - 7 sequently received reimbursement from Federal sources amounting to sixty pe_rcent of eligible. costs of the project (approximately $2.8 million) because of its overall consistency with the authorized federal project. The Village provided all access im-provements to the new beach at an estimated cost of $100,000 and· paid the cost of groin construction (about $300,000). The total project cost was $5,500,000. Figure 6.3.1 shows two photos of the project -one taken while construction was in progress and one immediately following project completion in 1975. The beach has held up extremely well since construction was completed with minimal sand losses. The curved jetty has proved to be successful in impounding material and protecting the project fill from the erosive effects of Baker's Haulover Inlet. In 1987, repairs were completed to the south jetty at the inlet to prevent the movement of water and the piping of sand through the jetty. This work was completed at a cost of $202,020. As indicated above, periodic supplemental renourishment of the beach would be required to maintain the beach pr of il e. A supplementary renourishment has been scheduled. by the u. s. Army Corps of Engineers for late 1987. 6 • 4 ADA1~si..S_.Q.f_B..e~..tL.9.ruL.0.Y.D..e_.P..r.2.t..e~.tj.2.n_~..9..S..tJ..r..e..s Beach and dune protection at Bal Barbour Village is currently handled jointly by state and county governments. The State, acting through the Department of Natural Resources, Division of Beaches and Shores, administers the coastal construction control line program and thirty-year erosion 6 - 9 1onstruction in progress Bal Harbour, Florida completed project Bal Harbour, Florida FIGURE 6.3.1 setback. FDNR regulates all development seaward of the coastal construction control line to ensure that the proposed developnent has minimal impact on the beach and dune system and can survive a major storm. As a part of the coastal construction permitting process thirty years wprth of erosion must be considered, and Florida law prohibits (with limited exceptions) construction of buildings that will be in the water in thirty years. FDNR Is jurisdiction is limited to areas seaward of the coastal construction control line. The control line for Dade County was set in 1981 and is shown on Maps 6.4.1 and 6.4.2. State law also prohibits driving on beaches and dunes and the destruction or removal of dunal vegetation. These beach and dune protection measures appear to be adequate for the near term and are working well at Bal Harbour. However, beach erosion will continue to occur. Some of the erosion is temporary, caused by large storms and much of the lost beach is built back naturally. However, because of an apparent recent trend of sea level ris·e, the shoreline will also tend to erode slowly due to the influence of this factor/. Recently. I published studies on sea level rise indicate that a current rise of about 0.01 feet per year ~ill occur on the South Atlantic Coast. At this rate, the average sea level at Bal Harbour Village will only be 0.3 feet higher in the year 2017 should the current trend continue. Thus, the action of waves and currents will be the principal cause of beach erosion for the foreseeable future. The state and county's beach and dune protection regulations are based upon the coastal construction control line, 6 -10 which is static and whose location was determined by storm surge cal.culations. Because of its relative insign~fi<?ance, sea level rise is not factored into the calculations. The recently enacted thirty-year erosion setback helps counteract the static nature of the coastal line. In the future, the control line may have to be reset if the state does not adopt a policy of support of beach renourishment to counteract long-term erosion problems. The political consensus does not appear to exist for a retreat strategy, other than occasional resetting of t}le control line and the resulting landward siting of consequent buildings. Looking forward, it is expected that the beach at Bal Harbour will erode imperceptively due to sea level rise. Storms will cause short-term rapid erosion, but these shoreline changes are usually naturally self-correcting. Baker's Haulover Inlet will continue to interrupt the natural flow of sand and cause locally severe erosion problems. To protect man-made structures from storm induced and inlet-caused severe erosion and to try to forestall the long term effects of sea level rise, a continued use will be made of beach nourishment. Most of the cost of these expensive beach nourishment projects will be paid for with public funds. The most serious beach management problem the Village will face in the long term is preserving the beach when erosion begins to affect structures built near the current control line. The Village is thus committed to a future of continued beach renourishment. In recognition of this fact, the Village must continue to sequester funds in a capital reserve account to cover the local share of the cost of such projects. 6 -11 SECTION 7: ARCHAEOLOGICAL AND HISTORIC RESOURCES 7 .1 .A..r..c.b.a§.Q.l.Q.gi_c_g]._Jie..s.9.l.lt.C~..S Contacts with the Dade county Division of Historic Preservatibn reveal that there are no known or docu~ented archaeological sites at Bal Harbour Village. It is possible that pre-colonial Indians used the Bal Harbour area as a base for food gathering and fishing, but all traces of such, if once present, were obliterated during the early stages of the development of the Village in the early 19201s. Contacts with the Florida Division of Historic Preservation reveal that there are no known underwater archaeologicar resources (shipwrecks) in the Bal Harbour Village Area. 7.2 Bl..s~.9xj_c_,.Bg_s.9fil~§..S The Dade County Division of Historic Preservation indicates that there are no historic sites or structures at Bal Harbour. All surviving development is post World war II. No sites or structures at Bal Barbour are listed in the National Register of Historic Places. 7 - l SECTION 8: HURRICANE PREPAREDNESS EVACUATION 8 • 1 .B.w:..rJ.~_g..n_e _ _g._ruL l'..t.9.PJ.~Al-.S.t_g_r.nLYJJ.l.n~_r_g._bj.JJ...ty Bal Harbour Village is vulnerable to tropical storms and hurricanes. By defin~tion, t~opical cyclones include tropical storms (storms with winds from 38 mph to 73 mph), hurricanes (storms with winds from 74 mph to 123 mph), and great hurricanes (with winds over 124 mph). Hurricanes usually commence over warm water~ in the tropics and contain low-pressure centers with surrounding counterclockwise winds. Hurricanes affecting Dade County develop in the Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea during the summer and fall months. Severe storms occur most frequently during September and October; these usually develop in the eastern Atlantic. Throughout the past century, South Florida has been struck by more hurricanes than any other area of equal size in the United States (see Figure 8 .1.-u. South Florida also has been impacted by more of the great hurricanes-per unit length of coastline than any other area of ~he country. During the period of 1886 to 1970, tropical storms with sustained winds over 38 mph occurred on the average of every 5 years.· Storms of hurricane strength occurred every 6 years. Great hurricanes occurred every 14 years. Hurricane frequency cycles have been mapped and show that there are periods in which hurricane tracks concentrate on Florida. However, they are not useful in forecasting hurricanes. Three major forces cause most of the damage due to hurricanes: the winds, the storm surge, the torrential rains of a combination 8 - 1 MAJOR H~RICANES AFFECTING SOUTH FLORIDA 1926-1976 of these. Wind has long been recognized as a major destructive force associated with the passage of hur~icanes. The force of the wind is often used to characterize hu~ricane intensity. The force exerted by winds increases with the square of the wind speed, rather than in a direct proportion. Theretore, a 150 mph wind exerts four times as much force as a 75 mph wind. The Saffir/Simpson Scaleld is used by the National Hurricane Center to give public officials a continuing assessment of the potential for wind and storm-surge damage. Scaie numbers are made available to public officials within 72 hours of storm landfall. Scale assessments are re·vised regularly as new observations are made. The central pressure, wind speed, storm tide and damage expected from each category storm is shown in Table 8.1.1. A description of each hurricane category follows: • ~fil~SQ~Y-N9J_l -Winds of 75 to 95 miles per hour. Damage primarily to shrubbery, ·trees, and unanchored mobile homes. Some damage to poorly constructed signs. Low-lying coastal roads· inundated,· minor pier damage, some small craft in exposed anchorage torn from moorings. • ~_gj;~_g.Q,.ty _ _N.Q_.._2 -Winds of 96 to 110 miles per hour. Considerable damage to shrubbery and tree foliage; some trees bl own down. Maj or damage to exposed mobile homes. Extensive damage to poorly constructed signs. Some damage UThe Saffir/Simpson Hurricane Scale was developed by Mr. Herbert Saffir, Consulting Engineer, Dade County, Florida and Dr. Robert H. Simpson, Simpson Weather Associates, Charlottesville, Virginia. 8 - 2 scale Central ..N!J.ID.b§J;· lti-1-l.ib~.r.s 1 >980 2 965-979 3 945-964 4 920-944 5 <920 TABLE 8 .1.1 SAFFIR/SIMPSON SCALE OF HURRICANE INTENSITY Pressure Winds .I.Mll§.s J.MP.l.U >28.94 74-95 28.50-28.91 96-110 27.91-28.47 111-130 27.17-27.88 131-155 <27.17 155+ Storm* Tide J.F.t .... l D~.ID~ 4-5 Minimal 5-7 Moderate 7-10 Extensive 9-13 Extreme 15+ catastrophic *Adjusted to Dade County using the 19 83 u. s. Army corps of Engineers Technical Data R_eport -(includes astronomical high tide). to roofing materials of buildings; some window and door damage. No_ major damage to buildings. Coastal roads and low-lying escape routes inland cut by rising water two' to four hours before arrival of hurricane center. Considerable damag~ to pieri. Marinas flooded. Small craft in unprotected anchorages torn from moorings. • .Ci!..t~_g.Q..t:.Y_.N.Q..1_.J -Winds of 111 to 130 miles per hour. Foliage torn from trees; large trees blown down. Practically all poorly constructed signs blown down. Some damage to roofing materials of buildings; some window and door damage. Some structural damage to small buildings. Mobile homes destroyed. Serious flooding at coast and many smaller structures near coast destroyed; large structures near coast damaged by battering water and floating debris. Low-lying escape routes inland cut by rising water three to five hours before hurricane center arrives. • · .C.a.t~_g.Q_ry_.N.Q..1_J -Winds of 131 to 155 miles per hour. Shrubs and trees bl ow down; all signs down. Extensive damage to roofing materials, windows and doors. Complete failure of roofs on many small residences. Complete destruction· of mobile homes. Major damage to lower floors of structures near shore due to flooding and battering by waves and floating debris. Low-lying escape routes inland cut by rising water three to five _hours before hurricane center arrives. Major erosion on beaches. • ,.C_gJ;~_g.Q_ry_N.Q..1_5 -Winds greater than 155 miles per hour. Shrubs and trees blown down; considerable damage to roofs 8 -3 8.2 ~~9~~-B.J.U;Ij~$M_~j_dgl_~l99.ds_9.rul_Bj_g_b=N..at~I-M.a~b According to data compiled by the u. s. Army Corps of Engineers since 1925, tidal flooding from hurricane-generated tides .and wave action has occurred in the study area on numerous occasions, five of which were significant--ih 1926, 1935, 1945i 1947, and 1950. The most severe and extensive flooding occurred during the hurricane of September 1926 (a Category 4 storm}. While detailed accounts are sparse, all reports indicate that Miami Beach (and presumably Bal Barbour also) was entirely inundated; at the height of the tide the ocean reportedly extended to Miami 3-1/2 miles across the bay. Flooding on the island reached depths up to 3 feet with water ponded to about elevation 12 feet near the ocean. Detailed surveys of high-water marks on the barrier island were made after the storm by the then City Engineer of Miami Beach. The high-water marks were taken in several east-to-west profiles across the island. The marks generally parallel the variation in ·1and configuration and point 6p the major difference between tide heights in the ocean along shore or in inlets and water levels measured on land. High-water marks observed on land show ponding -behind the beaches caused by wave run-up. Those high-water marks were usually higher than tide heights recorded on tide gages in front of the seawalls or dunes. Wave run-up and overtopping washed many thousand yards of sand over the beach, depositing it in the lower floors of buildings and on lawns and streets for a distance of 1,000 feet back of the beach. In the November 1935 hurricane, flooding did not approach that of 1926 either in depth or lateral extent. 8 - 5 The Bal Harbour beach project consists of three components which act in concert as defenses against the effects of coastal storms: Component 1: The foreshore beach slope component 2: The beach berm Component 3: The dune The first defense against normal wave action or that emanating from weak storms is the shallow sloping project foreshore and nearshore slopes which are depicted in Figure 8.3.1. These shallow slopes dissipate the energy or weaken the force of the deepwater waves. The primary agent of littoral transport is the breaking wave. The shall ow seaward slopes afforded by the· project causes the incoming wave trains to break as they begin to feel bottom. After breaking, the water travels forward as a foaming turbulent mass, expending its remaining energy in a rush up the beach slope. Falling back seaward under the influence of the force of gravity, the water then runs back down the beach slope with sediments (sand) which have been placed in·suspension during breaking. These sediments are deposited in the calmer and deeper water found a short distance offshore and begin to build an offshore ba r . This offshore bar causes subsequent incoming wave trains to break farther offshore where the energy is dissipated and in this way an equilibrium condition is reached and no additional erosion takes place. The material eroded from the foreshore and inshore slope equals the material deposi tea in the offshore bar as illustrated in the figure. 8 - 7 COMPONENT.I COMPONENT I COMPONENT ~3 ◄ 2--tf..---1 ► • DIRECTION OF WAYE .MOVEMENT DUNE BUCH BERM WAVE BEGINS TO STEEPEN M AS IT BEGINS TO FEEL SOTTO I DEEPWATER WAVE BREAKING WA Ii / E OR NO SURGE ON SAR i(" LITT! -·~ ~ I ~ ,.--.. M.H.W. ERODED NURSHORE MATERIAL --------po·~.i'l :'l!'~--... 1.,_;;;C: '~~........ M.L.W . UALS ' . [Q ... : ~ .,:,.;,•::. J ' ' ............... NEAR SHORE SLOPES OFFSHORE ~AR MATERIAL .. :_· '::\41 . : :\•'f'~ ·""Q :;' . : · 0 \ .. , • . • , · · · ,c• · -,,., -,,, W'~ ,, ., '.s ");;i , f ;iJ:tii'af ~\i,;(:";-;' ;••\i-'' '.-;;,, ·.,: ' · · ''"··"·" ••·,·,·•··~•· ·· · · · r .... 't,~,""''••1"!~,. · ·&.,+' ,,, ·' · · • · · • ·· · '·· · · · ·.· x1mNs sEnArq,~,..~~~.o~i~t~!t~r~_.:~;1-_m.w.,~~{ ~iit .i;>~k-~{1~-~· ·t~iii.:~1 nr~t!Ji~ SJ~-= \ 1 i,:ts w·,·r"H"·rMPROVEMENT --· · · '. ~~--.· • ,·•:""•3:::l-~-,' .7?~i ,,..,$,1,.,,~.. . i,,_i, ·.elf',_. • '"'I-'· r • w-. ,• ~. r. • .>' •. , r., it -«. . • • 1•e:--,\r,•. -.:,• :\'/ :Ff .: •: ••' ,t ' • .. , PRIOR TO IMPROVEMENT ',. NEW BEACH FILL MAl'ERIAL FIGURE 8.3.1 COMPONENT 1 RESPONSE TO: ., ,. NORMAL WAYE CONDITIONS AND WEAK STORMS As conditions deteriorate, larger waves approach the shoreline. If the onshore winds are of sufficient _magnitude, surges can also be expected to occur. Th~se larger waves when accompanied by surges, tear at the nearshore slopes and beach berm and deposit larger amounts of material in the offshore bars.-These large offshore bars trip the subsequent deepwater wave trains. The broken waves reform again in the regeneration area indicated in Figure 8.3.2 and may break and reform again several times before finally rushing up the foreshore. _With each successive break, energy is dissipated until sufficient material is deposited offshore to stabilize the shoreline recession taking place. After the passage of storms, or the storm season, the majority of material deposited offshore is returned to the beach by normal swell and wave action. The remaining material transported out of the active zone (fines), or transported out of the project area by longshore currents, is replaced during periodic nourishment operations which will be conducted approximately every five years or as needed. While the gently sloping beach and the beach berm are the outer line of defense to absorb most of the wave energy and surges affecting the project coastline, the hurricane dune is the last zone of defense in absorbing the energy of the waves and surges that succeed in overtopping the beach berm (Figure 8.3.3). The dune provides the large reservoir of sand needed to help build the offshore bar necessary to stabilize the storm induced shoreline recession (Figure 8.3.3, beach berm and dune have been 8 - 8 COMPONENTI COMPONENT 3 2 DUNE . SMALLER BREAKING WAVE WA-VE REGENERATION ARE/..1 LARGER WAVE BREAKING DEEPWATER WAVES ~"':-:-., .. ·1------. . -I ' V ON BAR ✓ BEACH BERM ·.): [ROD ..• :. ·. ~-. ~ SURGE ~ ~ / .. .-. ED SLOPE AND ·~ ·:-·: ....... .,:-,,,; ... ,. ~,;·,'~~-,, , \:. . ~ ~'----7 ~ · ·.:.-:; BERM MATERIAL f •. ·.~·. ;:-::.~: ,, ~ .. ,. :•:•· ~ .. -·.·: ... c.;, . ' .L . ,..: ....... -~ .. . ·-..... · ·, •·· ··• · ·' ,.,_. MLW .-::::; EQUALS . .··, ··</:.<:) .. :.,,'. ·: =-n, ,,,_.,,A,.,,,__ .. ··. ::;-·:,:''<·,:r/'.~··. . .. OFFSHORE° BAR MATERIAL~ -.· · · ~, · ··:: · ··.N ~,,,:.::·:· · ··'·' ·. , .. , ... ',.\,llNr\,:·.:, ·.· . .. x, .. ".i'I'fi?.:,; ;: .. •~.'•·~~~-~4::.'!.!7°\•. •:• ~~:· :, •, s· :·= ,.' : .•. ~.':,·• ~-c • ...... :4:,~ .. ~'.'-l~t!.•'z.l•-t1~•,:,(, .. ""f";II .. t : ·~;: r.~-~~fs::.-ti-1~,~:,~ptf.-if.• .. ,:itfbt . . :·· t~.f. -~t~f:·;~~~"t~1~~if'! ~Ft: .. PRIOR TO IMPROVEMENT .. · .. 1 ... : '· . ·NEW BEACH FILL MAl'fERIAl WITH IMPROVEMENT FIGURE 8.3.2 COMPONENT 2 RESPONSE TO: .. WEAK HURRICANE SURGE AND WAVES, TROPICAL STORMS, NORTH EAST STORMS · 1~. NOTICE SEAWALL IS BELOW WAYE RUNUP l£VH COMPONENT K--3--... DUNE WAVE RUN UP SMALLER BREAKING WAVE WAVE REtiE/ERATION AREA LARGEST BREAKING WAVE ✓ ON BAR ~ DEEPWATER STORM WAVES J ~:::~·.,!: .. '-/ ' r ' /·,.· .. '>,._;:L .. ~ ·:.. '\ ~ ' L £RODED DUNE, BER;··,c :;,, '~.t{;-::{i,\il°·Jj~~ ;~ •• ~. . ~;;!~:~~'.;r;;::'~::!':';;t;;'!' ---::. , ~ ::~:: AND NEARSH_ORE )1A TERIAV_:;, .,<·/'/~·::•:/ 0: ·; :·.:· • .. •:J);~=.k -::,. _; ;,•:•i,:jf EQUALS <-~~!,;:',;;',.J·.:':<·.;: .·:'.'_:·.I ... -~._;,_1_:::·•:1 ,.. · · <.·-: MATERIAL DEPOSITED IN OFFSHORE BARS - EXISTI .N·G::,:.~t:., ..... , .. · .... ,. ,. ,.,.·,· .:.-· . _;. ,'/•· .... '.~t'·>·'.>',!'.·:: · . .: ... ::. : ... , j. •• • / SEAWALL -~-.~·.:··;;.,;:,;~.f.,·~~ --~:, ... <., •. ,,.y,, • ~-~' · . . ., ,, ., · .... ,,•;,,r," .. ~,,~ .;.,>r,:;,:.::;.:~~--· ::;/.";;:.'.•'.~;:,:·) ,.\~•::?·.(,•.•~·-·· ·. _ ... . ."'. •.•·•:•h,1.,.· -; .•' ;,,,t~:~,;,{~t ~frS.t(• ,,. ,i,"•o,,•, ... ,. : . ,, • ;>-.·: ·;. . \ .• ~;-i;.,:r ;:;J;!,~+!:.:,_; i:~~.! ~-!.::,.:~ ; :\.,,\~; ';,i'•·a\<;,."'·· ... ,_;·'.e{~•· '.:'.• .: '.;:.•' r"'• ' . . ,.:,.•. ?·./·:'''·?;<t..,!.,;·'.:t~;?!f}Y,f :(:~i~/0 :,it~;}/'• '.:"' :::_jfJ?t}ffd:/)if'.i~r;" •::;-, '.'' ·· · •• ... --•· ''.::-.. :.:.. . . PRIOR TO IMPROVEMENT ...... '. .. •,;\< .. :.::.,···, ,~•, .... , ...... '.... .• .. . . IMPROVED BEACH SLOPE . NEW BEACH fill MATERIAL FIGURE 8.3.3 COMPONENT 3 RESPONSE TO: MAJOR HURRICANE SURGE ANO WAVES cut back) and acts as a levee to minimize or prevent flooding damages to adjacent development~ (notice how surge and w.ave run-up could overtop the existing seawall depicted in this figure were it not for the presence of the dune). The process by which this is accomplished is similar to the Component 2 response previously discussed. Should a major hurricane impact the beach of Bal Harbour, considerable erosion will take place which may requi.re an immediate need for a supplementary ienourishment project to restore the protective aspects of the overall project. Should a second severe storm occur in rapid succession prior to the implementation of supplementary renourishment, the protective dune could be breached, resulting in severe flooding and structural damage due to dunal overtopping. In recognition of the destructive potential of this natural phenomenon and that its loc·a1 probability of occurrence is greater than anywhere else in the continental Onited States,· prudent future land use planning at Bal Harbour must consider the destructive forces and the potential dangers to life and property posed by these storms. In recognition of these potential darigers, Bal Harbour Village in cooperation with Dade County has developed a Hurricane Procedure as a part of the Dade County Emergency Operations Plan. These procedures are outlined in the foll owing section. 8 - 9 8. 4 • 3 .E.Y_g~.l@.tj.9.n__B_e_g_uj..r..e.ID..e.D..t.s The Hurri9ane Procedure Plan identifies the areas within Dade county that require evacuation during hurricanes. A total of 47 evacuation zones have been identified based on predictive analyses of traffic volumes on designated evacuation routes and other storm risk factors. Figure 8.4.3.1 shows the evacuation zones. Bal Harbour Village is located in Zone 6. through 25 may require evacuation due to the storm tide. zones 1 zones 26 through 47 will experience inland flooding normally associated with heavy rains and winds but will not be affected by the hurricane storm tide. All residents east of Collins Avenue are in imminent danger from the hurricane stormtide. The more severe the storm the more intense the threat to life. Thus, the plan calls for all residents in zones 1 through 7, which are east of the Atlantic Intracoastal Waterway, to evacuate in any hurricane. 8.4.4 ~.Y_g~~s.tl.9.n....D~~j_sj.9.n_.z1g.tj.o.g:_~.r.9~~.s.s several ~teps are involved in reaching the decision to evacuate and which areas to evacuate. Some considerations are shown in Figure 8.4.4.1. The basic steps are outlined below: • ..S.t~.P-l : When the National Hurricane Center as~igns a Saffir/Sirnpson category number to a hurricane, that ~ategory becomes the coinerstone of future decisions relative to the storm. Clear and constant information from the National Hurricane center is necessary to determine if the storm appears to be on a landfall, parallel, or exiting tract. 8 -11 ~oN· . ~ FIGURE DADE 8.4.3.1 ,---... ---+--.....;""-----'--' ll'IH •10 rl t,4t,4rt II( 4U l•l4/'t.4111. J11r /1,ttl(IU lll#IIU 1' ,((t llf,IJ<,Ul~ fllltl(. ll',U,1t1 l#I UltlHI' 1 U 111,Jll l#Ult.llll. 1166,, t,l<llff II l.lrtl#tT ♦III 1111/UIU Ill fl 111,1111. ;.$) BOARD OF COUNTY COMMISSIONERS ••••• , ••. c.,., Cl••• •••••••• ···-·· ... -.; ...... .... , ..... >t. ............ ·-·· ............ . ········· ...... t••····· , ...... ..... u. •'-••·· ., .... , •• ........ , ·····-···. COUNTY EVACUATION ZONES BAL HARBOUR FIGURE 8.4.4.1 FRAMEWORK FOR E.VACOATION DECISION MAKING HURRICANE RECEIVE .ANO INTERPRET HURRICANE OIARACTERISTICS FRCM NMC. ICT:NTIFY STORM SITUATION CCNFRCT'ITING COUNlY J IDENTIFY EVACUATJCN TIME CONFRCNTING COLNTY ADJUST EVACl.ttl.TI ON TI ME BASED CN : ABSENCE OF EARLY EVACUATION RESPONSE OF POPULATION AT RISK ACTUAL HURRICANE STORM PARAMETERS NHC ESTHl,',TJOO OF PRE-LANDFALL HAZARDS AMBIENT CONDlTIONS SCI-EOOLE ISSUANCE OF EVACUATICN CR!:ER WATCH ANO/QR WARNING CANCELLED ISSUE EVACUATION ORDER • .S.t.e_p_.2:· Determine the extent of expected damage and more cJ_early define expected wind speed, arr iva3.: time of gale fprce and hurricane winds and storm tide heights. The time of arrival {in hours before eye landfall) of gale force winds an~ surge inundation for Bal Harbour for various category hurricanes are shown in Table 8.4.4.l. • ~.t~~-J: Adjust the evacuation times based on the specific storm. The evacuation time components are illustrated in Figure 8.4.4.2 and explained in Table 8.4.4.2. • ~.t~~-A: Notify all agencies when an evacuation order time is established so that may make necessary adjustments. • ~.t~~-5: Issue the evacuation order. In essence, the more intense the storm, the longer the lead time necessary. to successfully evacuate residents from the danger zone. In some cases, it may be necessary to issue an evacuation order to residents of Bal Harbour 36 to 48 hours before the expected landfall for an intense storm. The probability of expected landfall in Dade County may be as low as 20 percent at this time. 8 • 4 • 5 lll.lr.l"j~~-i;.Y~.J.@.tj.9.n...L~.Y~.l.s The Hurricane Procedure Plan establishes various evacuation levels based on recent tropical storm experience. The levels build upon one another to allow for a staged evacuation. For example, a Level One-evacuation for the Florida Keys may be implemented the day before it becomes necessary to evacuate in Dade County. A Level Two evacuation may be ordered for Dade County and then followed by a Level Three, etc., to prevent 8 -12 Location Intersection of Collins Avenue & 96th Street, Bal Harbour TABLE 8.4.4.1 BAL HARBOUR VILLAGE ROADWAY POINT PRE-LANDFALL HAZARD ?IfES FOR VARIOUS CATEGORY HURRICAN~s-~ -5Ll .cat-~ats.bl] 6.5 -9.5 Hours 10.5 -11.5 Hours -1.5 Hours 1.0 -1.5 . Hours l~/ Source: Lower Southeast Florida Hurricane Evacuation Study 2~/ See Table 8.1.1 for Saffir/Sirnpson Scale of hurricane intensity t FIGURE 8.4.4.2 EVACUATION TIME COMPONENTsL/L/ CLEARANCE TIME · PRE-LANDFALL HAZARDS TIME MOBILIZATION TIME I TRAVEL TIME I QUEUING DELAY TIME ARRIVAL OF GALE FORCE WINDS TIME SORGE ROAI:MAY INUNDATION TIME ISSUANCE OF LOCAL HURRICANE EVACUATION ORDER EYE LANDFALL . t fL..-_____ _.f PRE-EVACUATION ORDER TIME EVACUATION ORDER TIME l~I For definitions see Table 8.4.4.2. 2~/ Source: Metro Dade .Hfil.IJ..C.§.D~_J.>.I.Q.Cg.QJJ..I~-.F.l£lD• TABLE 8~4.4.2 DEFINITIONS OF EVACUATION TIME COMPONENTsl~!2~/ • .C.l.e_g..I.£!D..C.sLl'..img is the ·-time required to clear .al 1 vehicles evacuating in response to a hurricane situation from the roadways. Clearance time begins when the first evacuating vehicle enters the road network (as def.ined by a hurricane evacuation behavioral response curve) and ends when the last vehicle reaches it's destination. Clearance time includes the time required by evacuees to secure their homes and prepare to leave (referred to as ID..QDiliz_g_t,j.9.o__..tiw_e), the time spent by evacuees traveling along the road network (referred to as ..t..r.gygJ_..tj.mg>, and the time spend by evacuees waiting along the road network due to traffic congestion (referred to as ~.ui.n.g _dej_gy_..tjrog). Clearance time _g~_e~_D..Q..t relate to the time any one vehicle spends traveling on the road network. • .P.r.e=L-a..o.(i.f_g,J,J_JJ_g.zn.(i.s_.'l'j.J!lg is the time frame immediately before hurricane eye landfall within which evacuation should not be carried out due to the effects of the arrival of sustained gale force winds (39 mph). • .P.9..s..t=I:.Y.9-..C.!J,g...tj..o.n_.Q.rJl.e.L.Cl.es.r.a.n..c_e_l'.i.ID.e is the clearance time remaining after the evacuation order is issued. This time component added to the pre-landfall hazards time results in evacuation order time. • J.>..rg=.f:.Y_g...CJJ_g.J;j.9.n_.Q.r_g_e_r_j'jrog refers to a period of time prior to issuance of the evacuation ·order in which a certain percent of evacuees have already. left home and entered the road network. • _!:y_g._c~j..Qn_.Q.rtl_e..r_.:rJ.rog is the time in hours before hurricane eye-landfall by which the evacuation must be g"iven to·allow all evacuees time to reach their chosen destinations. l~/ See Figure 8.4.4.2 for relationship of components. 2~ I Source : Metro-Dade .IJ.YI.rl..c£1.ng_J.>..r.Q£:~.d!J.Ig_,F.l_g..O.. overcrowding of the Dade County roadway systems. Descriptions of the levels are found in Table 8.4.5.1. Announcements of evacuations are made by zip code and geographic location to assure residents are properly notified. Bal Barbour Village residents will be affected by Evacuation Level 2 and up. 8 • 4 • 6 .BJJ.r.rJ.~_g~_.Bg.f.ug_e..s 8 • 4 • 6 • 1 .P.91..i~.Y Hurricane refuges (shelters) are provided to protect persons -who have no other place of safe haven from hurricane winds or storm tide flooding. Refuges are provided primarily by Dade County Public Schools and are managed by the principal, a cafeteria manager, and custodial staff. American Red Cross supplements the school staffing. Each hurricane season the Office of Emergency Management ~ill publish an official Dade County Hurricane Refuge list that has been coordinated with all. agencies, and should be consioered the official county reference. 8.4.6.2 L.9~g~j.9.n,s_.9i_~~i.1J..S,e~~i.9z_~_gl_l@XD.QJJ..r_Yill_g~ The following hurricane refuges are provided for zone 6 including Bal Harbour Village (see Figure 8.4.6.1 for locations) • .N.9.I".!:.lL.MiMi_..J.JJn.i..OX_.ljj.g,b_S9.b.Q.9l_J~.f.llSJ.fL.N.Q ... _ilJ. • Address: 13105 N.E. 7th Avenue • Route to Refugee: Broad CSWY join 125 St.; west to Northeast 7th Avenue: North to Refugee • capacity: 500 persons 8 -13 TABLE 8.4.5.1 DADE COUNTY HURRICANE EVACUATION LEVELS • Level One Evacuation • Level Two Evacuation • Level Three EVacuation Evacuation for Monroe County residents_'only All residents east of Collins Avenue, all residents on Key Biscayne, and all mobile home residents must evacuate. Residents east of US 1 in North Dade, Biscayne Blvd., s. Bayshore or., and Old Cutler Road or the Turnpike Extension in the south end of the County may experience flooding. Affected Zip Codes In Numerical Order: 33139 East of Collins Avenue 33140 East of Collins Avenue 33141 East of Collins Avenue 33149 All 33154 East of Collins Avenue '33160 East of Collins Avenue All residents east of the Intra-coastal waterway, all residents of Key Biscayne (Evacuation zones 1-7) and all Mobile Home residents must evacuate. Affected Zip Codes In Numerical Order: 33131 East of Intracoastal Waterway 33132 East of Intracoastal waterway 33139 All 33140 All 33141 All 33149 All 33154 All 33160 East of Intracoastal Waterway Table 8.4.5.1, Continued .L.e.Y~.l-.9.f_.E.Y..a..c.u.atj.QD • Evacuation Level-Four • Evacuation Level Five All residents of Biscayne Blvd., s. Bayshore Dr., Main Highway, Ingraham Hwy., Old Cutler Rd., Homestead Turnpike Ext., and us 1 (Evacuation zones 1-17) and all mobile home residents must evacuate. Affected Zip Codes In Numerical Order: 33032 East of Turnpike Extension 33033 East of Turnpike Extension 33035 All 33039 All 33129 East of s. Bayshore Drive 33131 East of Biscayne Boulevard 33132 East of Biscayne Boulevard 33133 East of s. Bayshore Drive 33137 East of Biscayne Boulevard 33138 East of Biscayne Boulevard 33139 All 33140 All 33141 All 33143 East of Old Cutler Road -33149 All 33154 All 33156 East of Old Cutler Road 33157 East of Old cutler Road 33158" East of Old Cutler Road 33160 All 33161 East of us 1 33180 East of Biscayne Boulevard 33181 All 33189 East of Old Cutler Road 33190 East of Old Cutler Road All residents east of Dixie Hwy., Biscayne Blvd. and Florida East Coast Railroad in north end of the County; residents south of I-395, north of s.w. 8th Street and east of s.w. 12th Avenue in the downtown area; residents east of us 1 to s.w. 296th Street {Avocado Dr.)~ and all residents south of S.W. 296th Street (Evacuation Zones 1-25) and all mobile home residents must evacuate. Table 8.4.5.1, Continued • Evacuation Level Five, Continued Affected Zip Codes Iri Numerical Order: 33030 South of Avocado Drive 33032 East of US 1 33033 All 33034 All 33035 All 33039 All 33128 All 33129 East of South Bayshore Drive 33130 All 33132 All 33133 East of South Bayshore Drive 33136 South of I-395 33137 East of F.E.C. RR Tracks 33138 East of F.E.C. RR Tracks 33139 All 33140 All 33141 All 33143 East of Old Cutler Road 33149 All 33154 All 33156 East of Old Cutler Road 33157 East of US 1 '33158 East of Old Cutler Road 33160 All 33161 East of F.E.C. RR Tracks 33170 East of US 1 33180 All 33181 All 33189 East of US 1 33190 All -· •-o•.uio COUNTY /OAOtCOU.T"Y ·-----··-.. -··-;,-I·· -·--------1--·--i ,i \ . -: . ' ' TAllf.&llt TMll U.L ,1 I -·--· ----- -j I TAMIAMI 1AIJIIIIQ"T ~---,----'L----... ' E ~ . • IU .. UINII, ft \ 7 ! ' \ I <'' : .. I HURRICANE REFUGES BAL HARBOUR VILLAGE · FIGURE 8 .4 .6 .1 HURRICANE REFUGES • Address: 800 N.E. 137th Street • Route to Refuge: Broad: CSWY joint N.E. 125th Street; West to N.E. 8th Avenue; North to Refuge. • Capacity: 2,000 persons It is expected from statistical studies that approximately 15 percent of the residents of zone 6 will use these refuges during a Category 1 - 3 storm. Higher percentages (up to 25 percent) will use the facilities during a Category 4 - 5 storm. The remainder of the populace will be accommodated by friends and relatives or in motels/hotels. The total capacity of the designated refuges for Zone 6 is 2,500 persons. Fifteen percent of the zone population is 2,264 persons. Thus, the facilities appear to be adequate for category .1 - 3 storms, but overcrowding will occur for severe storms unless additional refuges are designated. To assist residents who are without their own transportation to the refuge the following Metrobus Hurricane Pickup Point has been designated for Bal Harbour Village: Pickup .F.oj.n.t ,N.Q..,_ 6a-l Bal Harbour City Hall 655-96th Street North Miami Junior-High School (6A), 13105 N.E. 7th Ave. Designations may be altered due to operational requirements. Additional pickup points ID9Y be serviced by request to the Metro EOC once a group has formed. 8 -14 SECTION 9: POST DISASTER PLANNING CONCERNS AND COASTAL HIGH-HAZ ARD AREAS 9 .1 .G.e.M~fil Following a major natural disaster, such as a hurricane, there is a period devoted to damage assessments, cleanup and rebuilding. The typical reaction is to rebuild everything to the condition that existed before the storm. Rebuilding to pre-storm conditions may be imprudent and result in repeated damage to the same structures. The special vulnerability of certain areas to· damage by hurricanes or other storms should not be ignored, rather it should be used to revise land use and capital tacilities plans in order to make the community safer and reduce the inconveniences and dislocation caused by storms. In order to respond quickly after a storm with alternative land use and capital facility plans, it is necessary to examine in advance the areas, structures, and facilities most likely to be damaged and provide alternates to current land use plans and facility sites which can be adjusted following a storm event. This section of the Coastal Management Element is devoted to post disaster planning including discussions of damage assessment and cleanup procedures, as well as post-disaster redevelopment alternatives with_ special attention to the high hazard area of Bal Harbour Village. 9 - 1 9 • 2 I).g.Ill-2-~-~..§g..§_t>.ID~.n.t.§_ ED1L .f g_gg_r.ru,._ D.ia.g...§_t~..r-A.s.§.iJ?1:_g.1).,g~-.F.r.9-S.t"~ID Damage assessment is an op~ration which will begin during the recovery stage, specifically during restoration. It is an important step in rester ing the community to normal by providing the mechanism for federal financial assistance, which is necessary for long term recovery. The extraordinary expenses incur red by the Bal Harbour and Dade County governments may in some cases be reimbursed by the Federal Emergency Management Agency (FEMA). The cost to local residents in personal and business property damage may make them eligible for federal assistance in the form of government sponsored loans. In order to qualify for federal assistance, the community must have suffered damage that will allow a declaration of emergency by the Federal Emergency Management Agency CFEMA), or a disaster declared by the President. It is the responsibility of local government to estimate 'initial damage in order to trigger federal response. Once that federal response is assured, additional and more specific damage estimates are necessary. Guidelines for.estimating the damage and a basic organization and structure to accomplish that objective are presented in Annex E of the Hurricane Procedure Plan. The Metro-Dade Public Works Department has been designated as the coordinating agency for damage assessment. As necessary, the Director of Public works or his representative may require the use of assets from multiple agencies to accomplish this task; the scope of which will become apparent as initial assessments are reviewed. 9 -2 County agencies which will be called upon to assist in various phases of damage assess~ent are: • Metro-Dade Building and Zpning Department • Metro-Dade Cooperative Extension • Metro-Dade Aviation Department • Metro-Dade General services Administration • Metro-Dade Environmental Resources Management • Metro-Dade Housing and Urban Development • Metro-Dade Water and sewer Department • Metro-Dade Transit Authority • Metro-Dade Solid waste Collection • Metro-Dade Park and Recreation Department • Dade County Public Schools • Dade County Chapter, Red cross While these County agencies complete damage assessments and provide teams to assess· community damage, it is the responsibility of each municipal government to conduct damage assessments within their jurisdictions. This is acco·mpl i shed through close cooperation and coordination with the county to insure that the methodology for such assessments, scope and documentation are consistent so that federal funds are obtained in a timely manner. Two types of federal assistance are authorized-1 emergency and permanent. Emergency work includes efforts to save lives, protect property, and maintain operation of essential facilities until permanent restoration can be made. Permanent work involves actions necessary to repair, restore, reconstruct or replace 9 - 3 public and certain private non-profit faciliti~s damaged or destroyed by the hurricane. After a declaration of emergency is is~ued by the Governor, as an Executive Order under Florida statute 252, the Governor requests the President to declare the area a disaster are·a; Under Public Law 93-288, FEMA is responsible for administering the assistance program. Damage must be severe enough to indicate effective response is beyond the capability -of Dade County or the Village of Bal Harbour. Federal disaster grants administered by FEMA can take several forms, namely, categorical grants, flexible funding grants or a grant-in-lieu option. Categorial grants are issued based upon the estimated cost of restoring facilities to their pre-hurricane conditions and are designed as follows: • To restore projects on a project-by-project basis. • For all debris clearance and emergency work on project applications for which the approved amount is over $25,000. • For all private non-profit facilities for which -applications must be submitted by a municipality. Reimbursement is through a "government sponsor" except for debris removal, in which case reimbursement is made directly to the private/non-private organization. Flexible funding grants may be selected in lieu of categorical grants when the applicant wishes to repair or restore certain selected public facilities or to construct new public facilities designed to better meet the needs of the community. 9 - 4 However, such funds may not be used to repair facilities not damaged by the disaster or to accomplish maintenance. The grant-in-lieu option is a variation of the categorical grant. An applicant who desires to construct a larger or more elaborate replacement in lieu of authorized wprk may ct'pply for a grant equal to the estimated amount required for repair or replacement of the facility to predisaster condition. Federal grant assistance is provided on the basis of a Project Application submitted by Dade County and each municipality and approved by the Governor's authorized representative and the FEMA Regional Director. To obtain -approval of a Project Application assurance must be conveyed to· FEMA that funds are available in accordance with the 75 percent federal/25 percent state and local political subdivision cost-sharing obligation. contractual modes: This assurance is conveyed in two • When the Project is signed. • By contractual agreement between the state and Dade County or municipality defining the cost-sharing obligation each will underwrite. The percentage underwritten by each is arrived at by negotiations between the state and Dade County or municipality. A detailed survey will be· made at each damage site, and a Damage Survey Report (DSR) will be completed detailing the scope of work required and the estimated costs of restoration. A sample DSR form is included here as Figure 9.2.l. These DSR's become a basic part of the Project Application, which must be 9 -5 ADDRESS OWNER -=---_____,--..,..,..,---rr----. PHONE ___ _ B · L W H J 00 BUSINESS ~ ii 00 RESIDENCE IF. BUSINESS OR GOVERNM.ENT, WHAT TYPE E 00 GOVERNMENT D A ~M A G E. E-M PLOYEE S INSURED YES/NO □© M(NQR windows broken, loose boards, etc. . . . □@ MQDERA TE fire and smoke damage, paint peellng, roof damage □0 MAJOR structural failure of roof, walls, etc. □© TOT AL •hell only, walls down -00 WIND 1 00 FLOOD. F 00 RAIN INSIDE DAMAGE ✓R ( FT) $ •I 0 00 FIRE l M □0 LOOTING (INVENTORY) □0 OTHER 1--FT} -+f LOCATE WITH •x• ON A E R I A L / S .E C T I O N S H E E T CONDITON OF SU~ROUNDING AREA COMMENTS SURVEYOR DATE . TIME EOC USE ONLY SQUARE FEET DAMAGE $ ASSESED VALUE $ MeTIIOPOLIT AN DADE COUNTY, FLORIO A ·DAMAGE SURVEY REPORT (DSR) # __ ATTACH PHOTO FIGORE 9.2.1 filed within 30 days following an emergency declaration by the President or within 90 days of a major disaster declaration, unless time limits the initiation and completion of various types of projects. Prior to submitting a Project Application to the Metro-Dade Public Works Department for forwarding through the Metro-Dade Office of Emergency Management to the Florida Bureau of Emergency Management, the applicant .HIJ~X have defined the percentage of the cost-sharing obligation it has agreed to underwrite. The Project Application is then, after review and recommendations by state, forwarded to FEMA. FEMA then reviews and analyzes each application and then returns it approvedi approved subject to revisions, or disapproved. Once approved a change in the scope of work is permitted, but an interim inspection may be required. An appeal procedure exists for cases in which a state or local government believes that the decision rendered by FEMA was unjustified. The appeal is made in writing by the state (or if the state refuses, by the applicant) to the FEMA Regional Director. If the Regional Director denies said appeal, the state (or applicant) mey then appeal to the FEMA Director, whose decision is final. Throughout the entire process each applicant must maintain accurate records of activities and expenditures. These records are subject to state/federal audit and are the basis for the reimbursement of incurred costs. In the event problems arise during reconstruction, the applicant must immediately notify the Office of Emergency Management. The Office will then notify the 9 -6 Florida Bureau of Emergency Management and request that an interim inspecti~n of the problem site be conducted by state and/or federal authorities. State/federal authorities may also request an interim inspection to determine the progress of a project and to check the completeness and validity of the original DSR. A supplementary DSR may be filed with the state if the cost or scope of work has significantly changed. The supplementary DSR is forwarded to the state through the Office of Emergency Managerne_nt. Final inspection will be conducted to verify the completion of work, as approved by FEMA. The applicant will then submit. through the Off ice of Emergency Management a request for final· payment to the Florida Bureau of Emergency Management. The state will audit all claims for reimbursement and when documentation is in order, forward to FEMA the request for final payment. 9 • 3 F..o..s..t_ D.i..s.a.s.t..e..t_.P..J....anni.ng__ .C..oM..e.r.D..S_.Re.l..a...t.i.YJL..t..Q_.t.b..e_ jjj_g.b .Bn..ru:.d...Ar..e..a. The area of Bal Harbour Village which is projected to experience the most severe damage.is the high-hazard area. In the case of Bal Harbour Village, this area consists of the area seaward of the coastal construction control Line (CCCL) (see Maps 6.4.1 and 6.4.2 abov~}. Existing structures in this area include portions of several high rise hotels and condominiums, as well as, such ancillary structures as cabanas, pools, decks, tennis courts, parking lots 9 - 7 and seawalls. Also included is a jogging path and the restored public beach se~ward of the collective historic bulkheads. Following the p~ssage of a storm there will be pressure to reconstruct all of these structures to their pre-storm condition. Appropriate facilities for this high hazard area for which there is absolute consensus of propriety would be public beach access facilities, recreation facilities (pools, jogging paths, tennis courts, etc.) and renourished beach. However, with respect to damaged structures used for habitation, several options are available to the Village. The first item which must be decided is the threshold of damage beyond which the Village will start to consider alternatives to the existing situation. Damage equal to or greater than 50 percent of the value of the structure is the standard used by the National Flood Insurance Program and is a possible standard for the Village to use. Once a structure suffers damage greater tha~ 50 percent of its value, the Village would require·the Owner to rebuild landward of the existing structure. Structures seaward of the control line would be required to be rebuilt landward of the control line. The Village could also consider buying the most severely damaged structures and their lots. Since the majority of the most vulnerable structures are concrete and steel high rise structures, the cost would be prohibitively high making this option impractical. In recognition of the need to establish a firm yet reasonable policy relative to reconstruction, it would appear that the following option should be considered: 9 -8 50 percent of the value of the structure coupled with the ~ndermining of or irrepa~able damage to the foundation of tpat portion of the structure seaward of the coastal construction control line. M9re than 1 ikely it would take a very severe (Category 5 )· storm to create this situation and it is only under this extreme circumstances that a retreat posture should prevail. rt should be noted here that in a severe. storm all of the existing ancillary structures seaward of the coastal construction control line will likely suffer extensive damage. No doubt swimming pools will be filled with sand and debris, cabanas will be destroyed and tennis courts obliterated. Also first floor lobbies of hotels will be flooded and filled with sand, glass windows will be broken and electrical equipment damaged. Thus after the storm, decisions will need to be made as to how the structures will be reconstructed. Firm policies along these lines need to be developed (see Section 14 below). The public beach is certain to be damaged (eroded) in any storm. Maintenance of the beach is a joint effort by Bal Harbour Village, Dade County and the o.s. Army corps of Engineers. The options are to renourish the beach and repair the groins (if damaged) or to do nothing and allow the eroded beach to rebuild itself by natural processes. The Village of Bal Harbour (and presumably) the other joint entities are committed to a policy of renourishment. Thus, following the passage of a severe storm the beach will be renourished. Such a project will be jointly funded by the 9 - 9 participants and it should be included in any request for Federal Disaster Assistance in view of its irnport~nt function in hurricane protection. 9 -10 SECTION 10: PUBLIC ACCESS 10.1 l.DY~.D.t.Q_r_y_g..f_.E.z.i..s.t.i.n_g_..FJM;j.l.it.i..e..s Public access facilities at Bal Harbour Village which provide access to the public beach consist of the 96th Street extension and ramp to the beach an a concrete fenced .access ramp to the beach at Baker's Haul over Inlet. Public parking facilities are provided at this latter location in two lots located under Baker's Haul over Bridge. In the northern lot there are 40 spaces, two (2) of which are reserved for the handicapped. In the southern lot there are 20 spaces, two (2) of which are for handicapped use. At the 96th Street access point, there are twelve (12) public parking spaces provided at the bank located in the triangle formed by 96th Street, Collins Avenue and Harding Avenue. Thus, at Bal Harbour there are a total of 72 public parking spaces associated with two beach access points. There are no public access points to Indian Creek or Biscayne Bay. Al though ·1 imi ted, these par king spaces should accommodate more than 1,100 beachgoers in a day assuming four (4) persons per vehicle and a turnover factor of four. However., it should be pointed out that some of the available spaces, particularly those at the bank, will be used by persons not using the beach and that the demand will not be uniform ihrough the day. Persons using the spaces provided at the inlet often fish from the jetty or use the beach jogging path rather than using the beach for swimming or sunbathing. 10 - l Bal Harbour also has a private marina located on Indian Cre~k. This facility serves.the needs of the yacht club members and: is not -available to the general public. The existing facility is apparently meeting current private needs in this area, however. 10.2 ADslYDiD_9J_.f'JJ.~~~~-~~g~a It is obvious even to the casual observer and/or visitor to Bal Harbour that existing public access facilities are inadequate. This situation exists partly due to the manner in which the Village was developed, i.e., as a luxury private development. Opportunities to improve the situation at this juncture are limited. Nevertheless, future development of the two large oceanfront tracts noted in Section 4.3 above or the potential redevelopment of other tracts will provide opportunities for the Village to negotiate for other access points and parking spaces if ·possible within the overall context of a future development proposal. The Village should set a goal of at least one Cl) additional beach access point with associated public parking to augment existing facilities. In view of the level of development at Bal Harbour, it is not realistic to anticipate any future access facilities to Biscayne Bay or the establishment of any future public marinas or boat ramps. However, it should be noted that an excellent public access facility to both the beach and bay exists just north of Bal Harbour at Haulover Inlet Beach Park. This facility will continue to meet the regional needs for public access to area waters. 10 - 2 SECTION 11: VILLAGE INFRASTRUCTURE 11.1 .G~..r.al The following summarizes the existing and needed i n f r as t r u ct u r e s e r v in g the V i 11 age of Ba 1 Har bo u r • This information is analyzed in greater detail in the Traffic Circulation Element; General Sanitary sewer, Solid waste, Drainage and Potable Water Element; and in earlier sections of this element, as applicable. 11 • 2 .f:..il..s..ting_.f.s...c..il..i.t:J_e.s 11 • 2 .1 Ms.ds.t_.5..r.i,g.~_s_.ru,,g_~.s.JJs§j{.s..Y.S In Bal Harbour the main arterials serving the Village are 96th Street and Collins Avenue (State Road AlA}. Both of these routes are on the State/Federal Aid Systems. In Dade county the operation of all public traffic facilities (streets and highways} are the responsibility of the Miami Urban Area Metropolitan Planning Organization. Ninety-Sixth Street begins at the Ocean and extends across the south boundary of the Village (being the north boundary o! Surf side), to· the Indian Creek Bridge, Bay Harbor Islands, and continues westerly to the mainland and via 125th Street to I-95. In Bal Harbour the route has a variable width, but provides substantially two lanes of traffic flow in each direction with a fifth lane for turning movements. It was recently upgraded to be symmetrical with the bridge and to have a uniform width to Harding Avenue. It serves the City Hall and main entrance of the 11-1 Bal Harbour Shopping area. Collins Avenue (SR AlA) also known as Bal Harbour Boulevard, is a six lane divided parkway f~om the bridge over Haulover Cut south to the Surfside City limits. It provides local service to the hotels along the ocean as well as providing north-south arterial service from Miami Beach to North Miami Beach. All other streets are residential or private and not conducive to general public use. The adjacent communities needs for access concentrate on out-of.-village traffic on the two arterial streets. Any restriction of flow would affect these adjacent communities. The recent upgrading of 96th Street resulted from normal traffic growth and the expansion of the Bal Harbour shops. These recent improvements are expected to be adequate for the foreseeable future. The non-automobile traffic options include bicycle, pedestrians, and bus. The 'first two are very localized. The third, mass transit, provides interurban service to adjacent areas within Dade County.· Future improvements in Mass Transit will exert only nominal impact on ci rcul at ion in Bal Harbour, however, a continuation of no less than present levels of service is necessary for tourist and employees of the hotels and shops. Off-street parking has been required for many years. The major businesses, the hotels, shops and bank all have off-street parking facilities. Current requirements are adequate for provisions of parking spaces. 11-2 11.2~2 ,S.g.oJtgIY-~~~~L-Eg~Jlltl~~ Sanitary sewage is collected in the V~llage collection system and pumped via forcemain to the City of Miami Beach and thence to the Central Dade County wastewater Treatment Facility located on Virginia Key for 'treatment and disposal. Existing facilities are deemed adequate. 11.2.3 1?.QtgDl~_Nst~X-~Y~t~m The Village of Bal Harbour purchases its water in bulk from the City of Miami Beach which in turn obtains its water supply from the Dade County Water and Sewer Authority. The Village maintains a 900,000 gallon ground storage reservoir located at the intersection of 96th street and Bal Bay Drive and a water distribution system consisting of mains, valves, services, meters, blowoffs, hydrants, etc. The Village also sells water to the Town of Bay Harbour Islands just to the west. current demand figures for the Village on1y·are shown in Table 11.2.3.1. Peak demand occurs in November and March. The average daily demand is around 1.3 million ga·11ons (MG). The resort sector on the waterfront has the greatest demand for water averaging 70 percent of the total demand. Existing facilities are deemed adequate to meet current and future demand. 11.2.4 D..[gj_og,..99_~y~t~ID Bal Harbour has a substantially complete storm water drainage system throughout the community. Runoff is transmitted to Baker's Haul over Inlet and Indian Creek. The beach restoration project completed in 1975 eliminated storrnwater discharges to the Atlantic Ocean. The Village is essentially flat, filled land, 11-3 Non O:msllt'lptiv~ Demand and ..MQntb Municipal useLl Oct.' 85 414,800 Nov. 662,000 Dec. 574,200 Jan. '86 473,300 Feb. 504,200 March 882,400 April 1,217,900 May 1,174,600 June 722,500 July 1,348,600 Aug. 1,082,100 sept. 1,980,100 Totals 11,036,700 TABLE 11.2 .3 .1 WATER IEMAND 1985-8~/ BM. HARBOOR VJLLAGE Residential Oceanfront Aparbnents 4,499,400 24,363,600 2,002,700 5,948,700 36,651,700 2,894,500 4,130,900 25,239,000 2,234,500 5,021,800 32,875,800 2,882,800 5,342,100 26,300,200 3,418,500 5,167,400 37,382,800 3,155,100 5,456,400 26,539,100 2,702,600 5,907,400 26,720,300 3,150,800 4,435,200 24,001,200 2,259,800 3,477,500 25,144,000 2,468,000. 5,510,700 25,535,500 2,269,800 5,810,900 -21...t844,600 2,543,600 60,708,400 338,597,800 31,982,700 .LI source: Di .rector of Publi,c works, Bal Harrour Village. bl For landscaping/sprinkling of cannon green a r eas, ·etc • Bu sinesses Totals 3,001,400 34,281,900 4,189,700 50,346,600 3,127,900 35,306,500 4,466,100 45,719,800 3,805,500 39,370,500 3,857,700 50,445,400 3,020,700 38,936,700 .. ,. .. 3,616,900 40,570,000 3,103,900 34,522,600 . 3,031,600 35 ,46.9, 700 3,232,900 37,631,000 3,494,500 41,673,700 41,948,800 484,274,400 averaging five to six feet above mean sea level. Existing drain~ge systems exclusively serve arterial and Village streets providing reasonable runoff and access during flood conditions. The overwhelming majority of stormwater is absorbed directly into the sandy soil. The gravity drainage system is supplemented by a stormwater pumping station located at the Yacht Basin which evacuates collected stormwater to Indian Creek during flood periods. The existing system .is deemed adequate. 11 • 2. 5 .S.2.l.itLF£l..S.tlL.Ms.D_asg.ID~.n.t Solid waste is collected by the Village Public Works Department and trucked directly to the County Resource Recovery Facility located at 6690 NW 97th Avenue in Miami. Alternately, solid waste is carried to the Northeast Transfer Station located at 18650 NE 6th Avenue. 11. 2. 6 .s.b.Q.r~_.P.I.2.t~..c.t.i.9.n_~.t..t'.Y.C.t.Y.r~..s_Md..~~MlL.B&.Di>.ll.rj..s.hID~.D.t ,l?J;Qj~,g.t..s M~intenance of bulkheads along the soun<lfront are the responsibility of individual property owners. The steel sheet pile bulkhead along Baker's Haulove~ Inlet is owned and maintained by Dade County. The County also retains a 50-foot easement on either side of this bulkhead segment to facilitate periodic maintenance. The ownership and maintenance of the beach restoration project at Bal Harbour is vested jointly in three entities by contract: the U.S. Army Corps of Engineers, Dade County and Bal 11-4 , . Harbour. The seawalls wh1ch front on the project are owned and maintained by the individual property owners .. 11 • 3 . .FJJ.tfilsLlte.e.d.s In view of the high de~ree of development at Bal Harbour; future needs are expected to remain at or close to current levels. Thus, existing infrastructure in place appears to be adequate for the near term. Relative to beach renourishrnent, the U.S. Army corps of Engineers has plans to renourish the beach at Bal Harbour during the late fall and winter of 1987/88. The Village of Bal Harbour also plans to repair the groin system during 1988. All permits have been obtained for this project. The dynamic nature of the beach will require periodic renourishments and maintenance. Local cost shares for such will continue to come from the room tax fund established for this purpose. 11.4 .sp_e~j~l-B.e.s~ij~_tjQ,ns_~.n._~jsj.n.g_~i-2.Y.t.u.r.e_E~~jljsj.e.s The Florida Legislature has enacted a coastal infrastructure policy, banning the use of State funds to build facilities in coastal high-hazard areas, unless such expenditures are consistent with the local comprehensive plan. Through a series of convoluted cross references and consistency requirements, the revised planning laws require that local comprehensive plans limit development in coastal high-hazard areas. At Bal Harbour, the only facilities in high hazard areas called for in this element of the comprehensive plan are 11-5 structures such as jetties and groini. Such facilities are necessary to protect the beach from rapid erosion due to .normal littoral forces and periodic storms. Also consistent with the State's coastal infrastructure policy would be participation in future beach renourishment projects at Bal Harbour Village. 11-6 SECTION 12: SPECIAL COASTAL PLANNING EFFORTS The Bal Harbour Village area has been included in a special multidiscipline planning effort _entitled~-~j~.,g..?.t.YD~-~_gy_Aru;L..?.t.tj~ This plan represents an attempt to bring some consistent management to Biscayne Bay. It is important to consider this document because none of .the Village's coast.al resources are isolated from influences beyond Village boundaries. Events in other areas of Dade County and adjacent counties can have substantial impacts on resources in the Bal Harbour Village area, especially the beach and bay areas. developed by the Metropolitan Dade County Planning Department with the assistance of a Citizen Advisory Committee to guide decision making in the aquatic preserve. The preserve consists of eight units plus the Miami Rive·r as listed below • ..O.n.i.t.J~l I II III IV V & VI VII VIII Special Unit Sunny Isles to Broad causeway (Including Bal-Harbour Village) Broad Causeway to 79th Street Causeway 79th Street causeway to Julia Tuttle Causeway Julia Tuttle Causeway to Venetian Causeway Venetian to MacArthur Causeways and the Port of Miami Port of Miami to Rickenbacker Causeway Rickenbacker Causeway to Biscayne National Park Boundary The Miami River The plan identifies several management opportunities relating to water quality, resource conservation, providing public access, 12 - 1 and improving public safety within each unit. The following recommendations regarding water quality are the only ones directly applicable to Bal Harbour Village: • ~~Q~ID-~At~X-D.Y.tisll~-From the standpoint of size alone, two outfalls should receive priority for phasing out, or redesign to minimize the negative impacts of the first one inch of runoff on the waters of the Preserve: a 66-inch drain into Arch Creek and a 54-inch drain in the Bal Harbour area. There are more than 100 outfalls greater than 12 feet in diameter that empty into Unit I. Those that drain large areas of heavily traveled roadways should receive priority for retrofitting if they are not already scheduled to be upgraded as part of planned roadway· improvements. • B~~Y~-M~~~la• The high levels of chromium, cadmium, copper, zinc and lead in oysters in the adjacent to Unit I are indications of pollution. Possible sources include' storm water runoff and boat bottom paints. The sources and impacts of pollution should be identified. 12 - 2 SECTION 13: PLAN SUMMARY AND IDENTIFICATION OF SIGNIFICANT ISSUES The Coastal Management Element of the Comprehensive Plan for the Village of Bal Harbour covers that porti9n of Dade County bounded on the north by Baker's Haulover Inlet, on the east by the Atlantic Ocean, on the south by 96th Street and on the west by Indian Creek and Biscayne Bay. The area encompasses about 250 acres of land which is nearly 100. percent developed. The predominant land uses are low, medium and high density· residential/resort. The major water-dependent use is water oriented recreation. The major land use issues revolve round how best to develop the last remaining oceanfront tract in the high density zone and the future redevelopment of other existing developed tracts. The major natural habitat of the coastal area found at Bal Harbour is the coastal beach strand and dune system complex fronting on the Atlantic Ocean. The major land mass i~ dominated by man influenced habitat including maintained greenspace. Waters-·in and around Bal Harbour enjoy good to excellent water quality mainly as a result of the flushing action afforded by Baker Is Baul over Inlet. Principal sources of· pollution include stormwater runoff and marinas (petroleum products and heavy metals from bottom paints). However, there is no evidence of permanent environmental degradation from these sources. The beach at Bal Harbour is subject to erosion due to storms. A recent beach restoration project has been successful in slowing 13 - 1 the erosion effects of Baker's Haulover Inlet. Nevertheless, periodic renourishment of the beach will .be required. The Village of Bal Harbour is committed to a ~olicy of continued renourishments on an as needed basis so as to maintain the economic vitality of the community and to mitigate the impacts of coastal storms. Due to the recent history of and the nature of development of Bal Harbour, the Village does not have any archaeological or historic sites which require preservation. Bal Harbour is vulnerable to even minimal hurricanes with Saffir/Simpson scale categories of one or greater. All residents east of Collins Avenue will need to evacuate for all hurricanes. Bal Harbour and Dade County have an adequate evacuation plan with assigned shelters to accommodate evacuees. To simplify evacuation procedures, Dade County has developed several levels of evacuation based on zip codes. Bar Harbour, has portions of several habital structures in the high hazard area seaward of the coastal construction control 1 ine. In the aftermath of a severe hurricane or northeaster storm, . decisions will need to be made on whether or not_ to reconstruct such· facilities to their pre-storm condition. The Village needs to set a threshold of damage beyond which an alternate redevelopment pol icy would go into effect. Damaged structures exceeding this threshold will have to be reconstructed landward of the coastal construction control line. The Village of Bal Harbour is well provided with coastal recreation facilities. However, public access facilities 13 -2 including parking are limited~ Due to the nature and extent of development of Bal Harbour, most of this public access need, will of necessity, have to be met by other adjacent areas including the Haulover Inlet Park. Nevertheless, the Village needs to seek out opportunities to increase public access as a facet of future development or redevelopment. Bal Harbour's infrastructure is deemed adequate for existing and near term future needs. The significant issue in this area will be the maintenance of these facilities at a high .level of quality under the stress of continued use. Bal Harbour Village is included in the ~i~~~~D~-~~~-Ag,u..g.J;j~ 2L~R~LY~-~~D~s~m~n~_2l~D-The Plan contains recommendations relative to the improvement of water quality which should be incorporated into this element. The Village of Bal Harbour's solutions to the key issues identified above and the issues identified by the State of Florida in Paragraph 163.3177(6) Cg) and Section 163.3178, Florida. Statutes, are contained in the following section: 13 - 3 SECTION 14: LOCAL GOALS, OBJECTIVES AND POLICIES GOAL 1: .SALAN.C.l~~-~.RON.'I'.fl.L_JlE.D.BY.E.L.O.F.M.E~.T-ANIL.C.OASl'hL_M.S.O.IJ.RCJ;.S The natural resources of the Bal Harbour Village area shall be preserv~d, protected, or enhanced as the· development proposed in the Future Land Use Element occurs. ~bj~~~jy~-l~L=_.FI~~~~~j.ng_~9~jy~-Y~se~~~jQ.n....a..D~ N~~l~D~R: Each development or redevelopment proposed at Bal Harbour shall protect, conserve or enhance native vegetation wherever such exists to the maximum practical extent. • .FQlj~y_l~l~~l: The Village will protect and re-establish very rare and exceedingly rare native plants in the common greenspace areas where practical and encourage a like effort for all privately held lands. • .F~ll~Y-l~l~~2: The Village will maintain the beach dune vegetation plantings and re-establish these.vital vegetative associations if destroyed by a future coa·stal storm. • .F~lj~y_l~l~~J: Native vegetation shall be used to meet the landscaping requirements of local land development regulations, and shall be used in any required buffers, setbacks, and open spaces. 14 -1 • .P.9..l.iJ;,Y'_l..t.l..t..Q.4: Exotic plant species shall be removed from development sites during construction, and appropriate measures will be taken to prevent increased soil erosion • .Q.bj..e.c..tj_y~_l_._2_=_1?..r.Q..t..e.c..t.i.QL.Q.f_N'J . .J..d.J..i.f..e: To the maximum extend possible, Bal Harbour Village shall protect species with special status from adverse impacts caused by development or redevelopment. • .P~lj~2-l .... 2 .... Dl: Village development regulations shall include protection of sea turtle nesting areas by prohibiting the disturbance of nests, restricting beach cleaning activities in nesting seasons, and where feasible, controlling the emission of light from structures on or adjacent to the beach. • .P.Qlj.cy_l_._2 .... ~2: Beach renourishment projects shall protect sea turtle nesting areas by limiting construction in-such areas to fall, winter and spring months, or by collecting eggs from identified nests, incubating them, and releasing the hatchlings. • _p_gjj~.Y"-1..t.2 .... ~J: In order to protect manatees, boating speed limits shall be set in designated manatee critical habitat, in waters less than four feet deep and in seagrass beds proximate to the Bal Harbour area. 14 - 2 Offshore reefs which are b~ologically active shall be located and p~otected during any sand mining operations required for future beach restoration projects. Village of Bal Harbour shall take appropriate steps to maintain or improve estuarine water quality. New boat basins shall be prohibited, marinas and other multi-slip docking facilities shall use docks extending out to .. water no less than four feet deep at mean lo~ tide, and dredging for marinas or multi-slip docking facilities shall be restricted to limited channels for launching boats or changes to existing boat basins to correct environmental problems. • 2~li~Y-l~L~2: Dredging of the existing marina basin shall be prohibited, unless a detailed study of contaminates in the sediments is performed and adequate safeguards to prevent rel ease of any contaminants are provided. All contaminated dredged materials shall be disposed of at safe upland sites. • 2~li~Y-l~Ji~l: In order to reduce non-point source pollutant loadings, the Village should develop a stormwater management ordinance which 14 - 3 will require retention, detention or infiltration of runoff prior to disc~arge to estuarine water~. • 2Qlj~y_l~J~~A: In order to reduce non-point source pollutant loadings and improve the functioning of the municipal drainage system, dumping of debris, of any kind, including yard clippings and -trimmings, into drainage ditches and stormwater control structures is prohibited. The Village shall utilize fines, modify solid waste collection schedules, and initiate a public information program to help discourage· future illegal dumping in drainage facilities. • 2Qlj~y_l~J~~~: The Village shall establish a periodic inspection program for stormwater control structures to insure their proper functioning and maintenance • .Ql>j§~.t.i.Y.iL L.4-=-11.s,.t§.I_.D§.P~l>h.D.tL.W.s..t.e.r=~.l.s,l:§_g_L.ru}g 11.s~..s: Bal Harbour Village shall provide er iteria or standards for prioritizing shoreline uses, giving priority to water dependent uses. • .E.Q..l.i.~.Y-l. ..... .4.. ..... .0..l. : I n t he ca s e s of a n y redevelopment proposals, appropriate shoreline land uses shall be designated either recreation, conservation, or residential. • ~Qlj~y_l~A~~2: water-related uses associated with any future redevelopment shall be built on 14 - 4 uplands. Dredging and filling of wetlands or o~en water in order to accommodate water-related uses shall not be allowed. • ~Qlj~y_i~~~Ql: Any future new marinas and multi-slip docking ~acilities shall conform to the following criteria: a. Public use marinas shall be allowed only in the Business CB) zoning district; b. Non-public use marinas or multi-slip docking facilities shall be allowed only in residential zoning districts and then only if use of docking facilities are limited to use by residents; c. Marinas and multi-slip docking facilities must provide vehicular parking and sewage pumpout facilities; d. All parking, dry storage, and non-water dependent facilities must be built on existing uplands; e. Marinas and multi-slip docking facilities shall prepare hurricane plans which describe measures to be taken to minimize damage to marina sites, neighboring properties, and the environment; this hurricane plan shall be reviewed and approved by the 14 -5 Emergency Management Director/Building Inspect?r: f. Marina or multi-slip docking facilities shall comply with the other policies of this plan: g. Marinas or multi-slip docking facilities which propose to disturb or destroy wetlands or grassbeds shall demonstrate an economic need and viability for the proposed docking facilities and shall provide for use by the general public: h. Dry slip use shall be maximized in order to minimize impacts on water quality, and minimize the areas extent of disturbance of the estuary: and i. Fueling facilities associated with marinas shall be designed to contain spills from on-land equipment and shall be. prepared to contain spills in the water. Bal Harbour Village shall protect the beach and dunes, establish construction standards which minimize the impacts of man-made structures on the beach and dune systems and restore the beach and dunes which have been altered by storms or other man induced actions. 14 -6 • J>.QJ,...i,_cy_l...1.5_._..Ql: Construction of new habital structures seaward of the coastal con~truction control line spall be prohibited. • J?.9.lj_cy_J_._5_.__o2: Construction of ancillary non-habitable structures such as p~ols, cabanasi tennis courts, etc., shall be allowed seaward of the coastal construction control line provided such structures are designed either to be sacrificed to intense Storms or constructed to withstand wave forces on the order of 1,000 psi. • J?.9Jj_cy_1_._5_._..QJ: Reconstruction or repair of the existing groin field and bulkheads at Bal· Harbour shall be permitted. However, construction of any new groins or bulkheads seaward of the coastal construction control line shall be prohibited. • .1?.Qlj_cy_l...1.5...1...0!: A dune preservation zone shall be established by the development regulations to protect the primary dune through prohibitions on excavations, destruction of native vegetation, and activities which affect the natural fluctuation of the dunes. Any structures in this zone must be elevated on pilings and nothing beneath the structure shall interfere with the movement of the sand. • .l?.Qlj_cy_l_._5...1...05: Vehicular traffic on the beach and in primary dunes shall be prohibited. 14 -7 GOAL 2: • 2~lj~y_lJ5.....Q~: The Village shall support the beach renourishment pr~jects currently recommended by the U.S. ArmY: Corps of Engineers, and will continue to act as local sponsor. the Florida Department of Natural Resources re-establish the coastal construction control line every five years. The placement of the line should take into consideration the· protection afforded by the Beach restoration project. .B.ED!.1.C.l.N~_YJJL.NE.Bb.BlL.l.'l'.Y_.'l'.Q_ .H!J.RR.l.CANE.S .. People and property in Bal Barbour Village will be protected from the effects of hurricane storm damage. Village shall work cooperatively with Dade county to maintain or reduce hurricane evacuation times. • 2~ll~Y-2~l~~l: In order to prevent unnecessary evacuees crowding roads and shelters, the Village shall, prior to hurricane season, notify each household of their need to evacuate at various threat levels1 hotels, apartments, and condominiums shall post this notification conspicuously in each unit. Each new dwelling unit shall be provided with this information when the certificate of occupancy is issued, and this information shall be passed on to the new residents. 14 -8 • J?.o.l.i~y_.2 ... l..,..Q.2: The Village shall work with Dade County to ide~tify new shelters equai to the current shelter ~apacity to provide overflow accommodations in the case of a severe storm. Q.bj.e.c.t.i.Y.e_2 ... .2_=_.H..azg_.r.o_..M..i..t.igg.t.i,Q.n_.antL.C~.a.s.t.a.l .H.igh=.H.az.ai~-A~.e.a.s: The Village of Bal Harbour shall ensure that building, development and redevelopment activities are carried out in a manner which minimizes the danger to life and property from hurricanes. Development within coastal high-hazard areas shall be restricted and public funding for facilities with coastal high~ hazard areas shall be curtailed. • ~.Qii~Y-~2 ... ~l: The hazard mitigation section of the Dade County Hurricane Procedure Plan shall be reviewed and updated on a 5-year basis. In the rewrites, the Emergency Management Director shall identify specific actions that could be implemented to reduce exposure to natural hazards. • J?.o.l.i.cy_2 ... 2 ... .02: The coastal High-Hazard Area shall encompass the velocity zones on the Flood Insurance Rate Maps and the areas seaward of the coastal construction control line. • ~.olJ~y_.2..,.2 ... ~J: Village funded facilities shall not be built in the coastal high-hazard area, 14 -9 unless the facility is for public access or resource restoration. • _p.9Jj_cy _ _2_._.2_._.!B: Lands within the coastal high-hazard area shall be designated environmentally sensltive land on the Future Land use Map and shall be zoned recreation or conservation. The coastal high-hazard area shall be shown on the Village Zoning map. • 2.Qlj..Qy_.2.,_.2.,_.Q.5.: The Village shall adopt all current and future amendments to the 1985 edition of Southern Standard Building Code • .O.t>j_e..c.t.i.Y~_2-&J_=_..P.Q.S.t=.Dj~l.l~.tg_r_.B§_ggy~.J.9.P.ID~.nt : Bal Harbour Village shall provide immediate response to post-hurricane situations in concert with a post-disaster redevelopment plan which will reduce or eliminate the exposure of human life and public and private property to natural hazards. •.P.Q.lJ...Qy_2.,__·.3..,__.Q.l.: The current Dade County Hurricane Procedures Plan shall be modified to comply with the policies under this objective, and shall contain step-by-step details for post-disaster recovery operations. • 2.Ql.i..Qy_2.,__.J..,_.Q2: After a hurricane but prior to re-entry of the population into evacuated areas the Village council shall meet to hear preliminary damage assessments, appoint a Recovery Task Force, and consider a temporary 14 -10 moratorium of building activities not necessary for the public health, safe~y, and welfare. • .f..Q.l.i~Y-2 .... .3. .... .Q.3.: The Recov:ery Task Force shall include the Building Inspector, Emergency Management Director, Public Works Director, and other Village staff members as directed by the Village Council. Staff shall be provided by the departments whose directors sit on the Task Force. The Task Force shall be terminated after implementing its responsibility under Policy 2.3.06. .. • .f..Q.l.i~.Y-2 .... .3. .... .Q!: The Recovery Task Force shall review and decide upon emergency building permits; coordinate with Dade County, state and federal officials to prepare disaster assistance applications; analyze and recommend to the Village Council hazard mitigation options including reconstruction or relocation of damaged public facilities; develop a redevelopment plan; and recommend amendments to the comprehensive plan, Dade County Hurricane Procedure Plan, and other appropriate policies and procedures. Immediate repair and cleanup actions needed to protect the public health and safety include repairs to potable water, wastewater, and power facilities; removal of debris; stabilization or removal of structures about to collapse; and minimal repairs ~o make dwellings habitable. These actions shall receive first priority in permitting decisions. Lo:i:ig term redevelopment activities shall be· postponed until the Recovery Task Force has completed its tasks. • ]?.Q,l,i.Q,¥_2 ... J ... .Q~: The Recovery Task Force shall propose comprehensive plan amendments which reflect the recommendations in any interagency hazard mitigation reports or other reports prepared pursuant to Section 406 of the Disaster Relief Act of 1974 (PL 93-288). • J?.Qlj.Q,Y_2 ... J ... .Q1: If rebuilt, structures which suffer damage in excess of fifty (50) percent of their appraised value shall be rebuilt to meet all current requirements, including those enacted since construction of the structure. • 2Qli~.Y-2 ... J ... D~: structures which suffer repeated damage to pilings, foundations, or loadbearing walls shall be required to rebuild landward of their current location or to modify the structure to delete the areas most prone to damage. • 2.Ql.i~Y-2 ... J ... .Q~: Repair or reconstruction of the existing seawalls at Bal Harbour must be accompanied by beach fill. 14 -12 GOAL 3: • .F.9.J.j._c_y_..2..JL.3~lJ): The Village shall develop and adopt pri~r to the 1989 hurricane season a formal decision making process to evaluate options for damaged public facilities including abandonment, repair in place, relocation, and-reconstruction with structural modifications. This process shall consider these options in light of factors such as cost to construct, cost to maintain, recurring damage, impacts on land use, impacts on the environment, and public safety. • ..F.9ll~.Y-2..JLJ~ll: The Village shall maintain a contingency fund equal to 25 per cent of the value of public facilities in the coastal high-h az ar d area in order to cover the local governments· match for disaster assistance grants. • 2.9lj~_y_2..JLJ~l2: The Village shall identify structures in the coastal high-hazard area, inventory their assessed value, judge the utility of the land for public access, and make recommendations for acquisition when post-disaster opportunities arise. ..F.ll.BL.l.C_.ACJ:.6.S.S The amount of public access to coastal resources shall be increased as opportunities permit. 14 -13 Ex~sting shoreline access:shall be retained and ma~ntained. and Bal Harbour Village shall endeavor to establish at least one additional public beach access point as circumstances permit. • 2~Jj~y_JjlADl: Existing access for the public to the beach shall be maintained by any new development or redevelopment. New beachfront development shall show on their site plan existing beach access ways and the proposed development shall continue that access way, -relocate it on the site, or donate it to the· Village. Creation of M~ public access points shall make the development eligible for credits toward additional building height or similar site development concessions. • 2~J_icy_Jjlj~2: Public access to the renourished beach shall be maintained-by the Village. All future public access facilities shall include parking facilities wherever feasible. The Village shall accept donations of shoreline lands suitable for use as public access facilities. 14 -14 GOAL 4: ll:1.F .M.S.TM.Cl'.O..RE Public facilities shall be adequate and available to serve the residents and visitors to Bal Harbour Village • .O.bj..e..c.t~.Y..e_A~l-=.:...L..e.Y..e.l~-.Q.f_.S~..r.YJ...c..e : The level of service standards described elsewhere in this Comprehensive Plan for facilities at Bal Harbour Village and the additional standards under .. this objective shall be applied whenever development orders or permits are requested. • 2Qlj~2-J~l~~l: Future beach renourishment projects shall meet the following level of service standards. a. Beach fill must include a protective berm high enough to prevent flooding by a ten-year storm event, and b. beach renourishment projects shall have a design life of at least five years. c. beach renourishment materials should be ob-tained from suitable offshore sources and should approximate the physical characteris-tics of the natural beach materials. •.£.2.l.i~_y_.4_..._l.i.0.2.: Future developments and redevelopments must demonstrate they they will not impact the renourished beach in a manner which would reduce the level of service provided by the renourished beach. 14 -15 GOAL 5: Qbj~~~jyg_J~l-=-E~s.u.iX~~-.lID~~.QY~IDgD~~~-XjIDjDS-~D9 EYD~lDs: All public facilities shall be available at least by the time they are needed to serve new development or redevelopment. • .P.9.l.i~y_A .... .2 .... ..Ql: r;,evelopments which would impact existing facilities by reducing the level of service below acceptable levels, and which are to be built prior to the av a i 1 ab i 1 i t y of scheduled facility improvements shall pay for such impacts. • .PQlj~y_A .... 2 .... ~2: New or improved roads in Bal Harbour shall include turn lanes, parking lanes, or other paved areas which can be used to increase the number of traffic lanes for hurricane evacuation. .l.N'l'.E.RG.OY.E.F.N.Mf:.Nl'Af._.C.0.0.RD.l.NA'l'.I.OlL .'.J.'.O_.P.RQX.E.c.T_.C.OAS.l'.AL .Iu;.S.O!.l,&;..6..S Bal Harbour Village will work cooperatively with Dade County and adjacent municipalities on coastal resource management issues so as to address area natural systems on a systemwide basis regardless of political boundaries. Qbj~~ti~~-~ .... l-=-~QQL~.iD~~iDS-Nitb_Qtb~L-LQ~al ~.QY~LDID~Dt~: An intergovernmental coordination mechanism shall be established in order to manage coastal resources affecting or affected by governments other than Bal Harbour Village. 14 -16 • 2QJj~y_5JlJDl: The Village of Bal Harbour shall develop joint planning and management pr?grarns with Dade County and adjacent municipalities for mosquito control, beach renourishment, hurricane evacua~ion and ieconstruction, provision of public access, provision of infrastructure, special area planning, controlling stormwater, and coordinating efforts to protect species with special· status. Bal Harbour Village shall forward copies of its Comprehensive Plan and future development proposals to potentially· affected municipalities or Dade county for review and comment. The Village shall implement appropriate portions of existing resource protection plans which address Biscayne Bay and the public beach. • 2~lj~y_5J2JDl: The Village of Bal Harbour shall continue to carry out its responsibilities under the ~ja~sYD~-~~Y-A9~stj~-2~~R~~~~-~~Ds~~ID~D~ 21-2-D• • 2~li~Y-5~2~~2: The Village shall forward all development proposals slated for location adjacent to the aquatic preserve to the Florida 14 -17 Department of Natural Resources for its review and comment. • 2Qlj~y_5~2JQ]:: The Village shall cooperate with state and regional efforts to coordinate management of Biscayne Bay including participation in watershed committees, basin-wide storrnwater planning, and development of best management practices. • RQlj~Y-~~2~~!: The Village shall assist Dade County in the protection of regionally significant coastal ,resources. 14 -18 SECTION 15: BIBLIOGRAPHY The following published and unpublished information and reports were used.in the preparation of this report: • Bal Harbour Village (1987) z.9.nj.n.g_Q.r.ru..M.n~..e_.Bgl_H_g.JD.QJll' Y.i.l.l~.L_.f_l.9__rj.JJ.g.. • Coastal Engineering Laboratory,· University of Florida { Mar ch 19 5 8 ) .C.9£t..S1:.§.J_.E.n.gJ.M..e.r.i.n.g_.S..t.ugy _ _g._t. _ _B_a..k..e..r ~..s_:.IJ_g.JJ.l.QY..e.t J.Inl...e..tl. Report prepared for Dade County Park Department. • Florida Department of Community Affairs, Bureau of Local Resource Planning ( May 19 8 7) M.Q~_g..l_.C.Qg..SJ;gl_.M,gn.s9..eID..e.D.t ..f:1...e.ID..e.D.t • • Henry von Oesen and Associates, Inc. (March 1970) B~gIDjn.s..ti.Q.D_gn~_E..e~.QJ;..t.L_.B..es~.lL.~J;.Q..Sj.Qn.L_.Bgl_BgJ;~.Q~J; Y.i.ll..a~.L_El.9.rJ..d£t. • Henry von Oesen and Associates, Inc. and zurwelle-Whitaker, Inc. (December 1970) 2J;..ellmjng_ry_Bngjn..e..ei;jng· E..e~.9X.t.L_.B_eg~b_E..e..s..t.Q.t..a..tj.9..o_2..r.9j_e~.t.L_.B.a.l_H£t..rb.9..w;_yjll~.L El..9.rJ..d_g. • Metropolitan Dade County (1985) Bj..s~g.YJl..e_.Bgy_.Sb.Q.t..elln..e D..eY..el.Q~ID..en..t_~yj_e~_Di;~jngn~..e-JD..a.d.e_.C.Q.lJ.D.t.Y_D.r~.iM.D.C~-~.Q~ .85=1.41. • Me tr opol i tan Dade County Department of Env i ronrnent al Resources Management (1979) D~_.C.9JJ.D.ty_Ar..e1LN.i.d..e_Ng.t_ei .Qug.lj.ty _.M.§.fill.9..e.ID..e.n.t_.F.lM • . • Metropolitan Dade County Department of Environmental Resources Management (July 1987) .B.i~~.§..Y.D..e_.B..ay_..a.ruJ_.Mj.gIDJ. .IU._v..e..r.1 __ A.N.at..e.r_9..u.a1.J...ty_.S.u.mm.a..ry • • Metropolitan Dade County Office of Emergency Management (May 19 87) .Me..t..t.Q=D..ade_.C.9.uru;y_.lJ.1:1.r.ri..c..a.ruL2.r.9~.e.du.rg. • Metropolitan Dade County Planning Department (July 1979) .C.9.IDPL§MD~l_v..e_D§Y§l.9~ID§D.t_l1.aR~..e.r_2ig.n_!.9.r_~§~L.9I>.9ll..tgD D..a.dg _ _c_QJJ..nt~, Miami Florida. • Metropolitan Dade County Planning Department (July 1985) l~B5_.Reyj~j.QD~-~.9-..tb..e_.C.9IDI>.!§b..en..sjy§_D§Y§l.9~ID§D_t._~_g~_t.§L .l?J...a.n....f.9.r_.Me_t...r.91>.Q.lj.t.s.n...D..a.(!§_.C.QJJ.D..t.Y, Miami, Fl or ida. • Metropolitan bade County Planning Department (1986) Bj~~sy.n.e_.6.§..Y_AruJ_g_tj~_2.r§~§_tyg_~.M..s.e.ID§D.t._21-..a.o_J D..r..ai_t.l • • Metropolitan Dade County Planning Department (June 1987) 11B1_E..e~j~j.9n~_j;.9_..tb§_~.QIDI>L§b..en~jy.,e_D§Y§l.9I>ID..e.D.t_M.§.~_t.~__r 15 - 1 .P.ls.n_.f.Q..t'_.Mstt..t'.Q,P.Qljj;.9.D_.D.9.Q.,.e_.C.Q.Y.D.i:Y, Miami, Fl Or ida. • Reynolds, Smith an~ Hills, Architects, Engineers, Planners, Inc. (undated) • .C.9.ID.P..t'..eM.D.SJ..YJL..P.l,g..ILs.ruL.5=.1.e9..r E.Y..2-J.Y.9.tj.9.n_s.rul.Ap_p..rsj.ssl~~.P.Q..r.t_J.EJA.s.Ra.l_f.9..t'_..tb..e_Yill.9~..e .9.f_~sl_J:Js..t..b.9.JJ.J:.L_Jl9.Q...e_.C.Q.Y.ni:Y.r_.F..l.Q..t'j.Q._g. • . • Secretary of the Army (June 26, 1959). A-L..e.1:.1:.e..t'_.F..t'.Q.IlL..t..b..e .c.ru...e.f _.9.f _.E.o.gj.M..e..r.s..! _ .D~.Ps..r.t.ID§.n.t_.9.f _ .t.bsLAL.IDY.L _ .0.s)..t§.d_.Msy_ .21.i l.25.2.L_..S.Y..b.IDJ..t.tj.n.g_s_.B..e.P.Q..t' J;_.QD_lL.S.Y..t.Y..ey_.9..f _ _B_g_k_e_r ~.s_ .BsJJ.l.Q .Y~..t' l..D.l..e.t..!_.Fl.QJj.Q.9• US Government Printing Office, Washington, DC. • Secretary of the Army (June 27, 1968). A..~.1:.t..e..t'_.F..t'.Q.ID_.t..b..e .C.bi9i_.Qi_.E.n~jn~~..r.s1_.o~~s..r..tm~n.t_.9.f_.t.b9_ALIDY.L-Ds.1:~.Q._.Mru;~..b J~.L-11~1.t_~~..bmi..t..tin_g___g_B~.P.9..r.t_Q.n._.A_.C.Q.Q.Pg..r_g_tj_y_e_.B..e.9~..b .E..t.Q.Sj.Q.IL.C.Q..t_r.9.J,_~..t.Y.Q.Y-sD.Q._.9.ILJ.D.t..e..rjID_M~.I..t'j~_gM_~JJJ:.Y..ey_.9f Ds.Q.9_.C.Q~fil.Y..!_.Fl.9..rj.d9,. U. s. Government Printing Office, Washington, DC. • Secretary of War (March 30, 1946). A_L9..t..t~..t'-.F..r.QID_..t..b~ .C.bj...ei_.9.f_.E.D_gjn..e..e..r.s.t_.D.e.9s.r.tID..e.n.t_.9.f_.tb.e_Af.IDY.L-.Ds.t..e.sLD.e~.e.ID..b~1: li.t_li!2.t-~.Y..bmj_t_tjn_g_s_Bg.P.9..r.t_Qn_A_.C.Q.9.P~.Is..ti.Y..e_~g_g.~..b· _E_r.9_sj.9.o__s_t~_gy_.9.f_.Bs.k.e..t'~.S-~s.Yl-.9Y~..t'-.l.Dl..e.1:.L_.f l.9..t'j.o._g.. u. s. Government Printing Office, Washington, DC. • University of Florida, Department of Coastal and Ocean o gr a p h i c Eng i n e e r i n g C May 1 9 8 l ) • ~.Q.sl~.t.st.l .t.QM.t.r~.tj..9.n__c.9 .D.t..t.Ql_.lJ..M_ ..S.t.ugy _ .f .9..r_ Da..de_.C.Q.u.n.ty.t_.F .l.9.rJ..o.s • • U.S. Army Corps of Engineers, Jacksonville District (undated) .OJ.U_~.w-D.e~.h.c_JlQlL.l.t_N.Q.r.k.s.t_Ds.®_.C.QJ.ID.ty_.B~s~..b .E..t'.9.Sl.9.IL .C.9.D..t..t.Q.1_ .s)..ruLID.t.r.r.i~..sM-.P.r.9.t.e~.tJ..9.n....J?.r.9j9..c.t • 15 - 2 .L£G£NO I LOW 0£/VSITY 7V t;, OWEL.LJNG L/N/TS PER ACRE :==:::: I • I .M.£0. DEVSITY TO .35 OW£L.LING J./N/T$_· FEfe A~ . ~m #/GM" CJ£Ns/rr ro ss Dw'e..LJ.../N(; UN/TS~ p£e ACRE -· . .-. ~ COMM£12CIAL ~ hL/NICIPAL ~~fy} RECREATIONAL I . I OP..GV SPACE j . .-/_:.:;::;-_.__., BEACUFROVT 1·--,:~:,-::f'•I BAY 80-rT0/'1 ! _. ! NS77TU770NAL 0 $00 SCALE. .5£PTEl78£R /987 •, /000 ; I I ''9 ~ . "\ ·•·t (A . :, I -~ l 'i . .... .. . . . • ~§:-, --=====--A/ /". .EXISTING LAND LJSE l1AP oF BAL HARBOUR. ·1 • ?REPA/2£0 . . ~ ~ ~ VI t § .. ~ ~ ~ '1 LL/POV/Cl ,f ORANG£ f &fsLIL77N6 EJVGINESE'S MAP 4.1.1 I • '"' • • ,. •• ... t~~ii.~?:t~ttt:?;)j i .,; . : . . ·.: ..... ::_.-.... ,f [~;;,~~/;i}0~$.~;;~f;~i;~~~,;: H•. 0 :.· .. ·:·, ·-. .... . , .. :~:t·\/f !:~??::=r--'.:.:\?-::·.;t:-:.·-=_(: ?:5} -·· . ' . .... .... -· .. . : --~----·. : : ·:. -.·_. ~-:. . · ... _ ... " .. ·"'·.,·_ .... BAL HARBOUR L llrco N'S I i1 i .. I <@ I .,_ 1, ,.. • • ••.,. • • I .._ ZONING DISTRICTS _-.... ··• .. \ ·-· . . ,':. ; :::/•~>: :::-~/:.;i~,.\~-i~_;;)~i:()·Ii~~;,~~,ls~ R-1 R-2 PC Single Family Residentiat· Single Family Residential Private Club RM-1 RM-2 RM-3 RM-4 RM-5 OF B ~opp.Nop! M.Jltiple Family Residential IVtJttip4e Family Residential Multi~ Family Residential ~ltipie Family Residential M.iltipfe Famty Residential Ocean Front Business Off Street Parking !L t. (", ·, ,, • ! 1311 .... t.. -: '-, ..... (., . .., :!.. .. :. • _ .. i . I .,,, '-r'---J .· ----: MAP 4.4.1 •o,.:· '. : I~,:. i, : ·;, Town of Bal Harbour Village, Florida :zoning District Map ;k;i;-fL'11N_0: . I. ,• --::-:~S~:-· --~- ;:6: I _• h• , .• MAP 6.-4.l ·-1 DADE CDUNI'Y CDNSIRUCI'ICN (DNIRQL LINE I BAL BARBOOR V:rr.J:JIGE, IDRIHERN SEGMENI' _,::;~t);t.;···. ,)7f;:;' ,; ~ ,~TI7~-~~;i& ,1,f~t~t'fii}:1/fff/!} . ,.: . ,. . . -' "" .-. . : ~ . ---~li~:t::n ,. ,. .·!:•.: •.• -:·,;,.:. MAP 6.4.2 "DADE CDUNrY CDNSIRUCI'IOO CDN'IROL LINE B1'1. HAmOOR VILLPGE, OCO'IHERN SEGMENT Z:ue.vCLLr: -VH1TTAKr.:~, IN::, B A L HARD (.o,-.:,,lu .. t• ... G L~•,.CC:C~ \1, .... ,.,. bc•c.-..fL..,,.. --T I ., . I -I , ~ _____ j ------·-·-----. ----------·----. -,.. ---J, L .A C 0 Li , ... ,, ,. 0 E .A .N ti.", ____ i ,-..; .. '--l l :jF u:t .. ~ {n,..:, C I ,,,, •-• I r ' ! ,ue, o ,, .. _, -• •• •• u-•-,.__., • •-,..,.....,,.,_, •-• •• -···· ..... ··-·---•-.. ,._ -·--MAP 5 .4 .1.1 ~ u :, ll .J ::, ~ :::; . i ,g ti ~ LOCATIONS OF STORK'JATER OUTFALLS AT BAL HARBOUR VILLAGE