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FLOODPLAIN MANAGEMENT PLAN - NATIONAL FLOOD INSURANCE PROGRAM COMMUNITY RATING SYSTEM� � � � � � � ��. � � � �� . � , � � � �. � l� � %`' I�I I" `� '�' -�i/ �', � —' � _ , a�" � ;� �►. �''-�-----.�....-.,..� �- � , � �;�� . ,`� � - �� , � � � ;, ; " ', � � : O E O � E ;- � � �� E 4 �� - . _ .' . . ii . .:�. , �� - .� _ ;� ;. � , l 't*, } � � � � ` �— _ i n�� o �� -'� `'� � o �! , �C-"r��,� a r.�'—t � � � D `. � � - � � = � �' �`� � � � � °n OOs � � � I � ¢ r o }e �.. .s� v� �---� b . � j �{� U�� %,�: �� ,�" �� . , � y� :� � ,,� ,;, �:,�,�,� -�...�.,--,-�-1� �L. � �'�" .. . t :_� ��D� a'4� � < ; 7^.� . �� . . � �ff ` \ r � {'-•' ,�. � ` �, , a T u, > � ' ❑ � � � � �a � �, r.�.-�_- _ _, . �_ f.. . , .e _ . . . . ..:. ..., 1_..�--.... _._ .:: - i � � �,.�,��.-�.-_•- ° � � °,, o� �� , � � � � � r� ' t Q � �--r-� ��. �� f `�ry � 1 �r, � �... �'� �;a �' �.�----�, . '�___�..,� . . ��TV' � -_ - . . ._�r,. �� Vr*._.^�� r� Y National Flood Insurance Program Community Rating System Prepared by: Planning Department Planning & Development Services Administration September 21, 2000 � C ea�vate� I)�ic� (:�r11'. ilarc• l�rrlur�c�. � I � I � I � I � � I � � �J � � � � THE CLEARWATER CITY COMMISSION Brian J. Aungst, Mayor / Commissioner J.B. Johnson, Jr., Vice Mayor / Commissioner Bob Clark, Commissioner Ed Hart, Commissioner Ed Hooper; Commissioner Bill Horne, Interim City Manager Pam Akin, City Attorney Leslie Dougall-Sides, Assistant City Attorney John Asmar, Planning and Development Services Administrator Ralph Stone, Planning Director Cyndi Hardin, AICP, Assistant Plamiuig Directar ADVANCE PLANNING DIVISION Gary Jones, AICP, Senior Planner Lochen Wood, Planner Amy Ruscher, Staff Assistant � CONTRIBUTING CITY STAFF Tom Miller, Assistant Engineenng Director � Ed Adams Brian Barker Terry Finch � Dave Larremore Tom Mahoney Elliot Shoberg � � � �� L� � � CRS: Floodplain Management Plan - 2000 City of Clearwater Table of Contents 1 �� 3 Introduction...................................................................................................... 1 PlanningProcess ................................................................................................ 1 Causesof Repetitive Flooding ............................................................................ 2 4. Flood Data ......................................................................................................... 2 A. Weather Events Resulting in Repetitive Losses B. Other Weather Events 5. Areas of Repetitive Loss Properties .................................................................... 6 A. Clearwater Beach B. Stevenson Creek Basin C. Alligator Creek Basin 6. Floodplain Development ................. A. Development Trends B. Development Constraints C. The Floodplain D. Floodplain Uses E. Critical Facilities in Floodplain ...............................................................10 7. Future Development .........................................................................................16 A. Activity Center Development B. Redevelopment Districts C. Residential Development D. Potential Annexation Areas E. Land Use Planning for Annexation Areas F. Provision of Services to Annexation Areas G. Flood Hazards for Annexation Areas 8. . Plan Goals ........................................................................................................19 A. Future Land Use Element B. Stormwater Subelement C. Coastal Management Element D. Conservation Element E. Recreation and Open Space Element F. Capital Improvements Element � � � � � � � � � � � � � CRS: Floodplain Management Plan - 2000 City of Clearwater Table of Contents (con't) 9. Recommended Flood Management Activities ...................................................30 A. Preventive B. Property Protection C. Natural Resource Protection D. Emergency Services E. Structural Projects F. Public Information 10 11 Implementation Schedule ..................................................................................35 PlanMonitoring ................................................................................................36 Bibliography Appendices Appendix A: Appendix B: Appendix C: Appendix D: Appendix E: Appendix F: Appendix G: Appendix H: Appendix I: Appendix J: Appendix K: Appendix L: Maps Map 1 Map 2 Map 3 Map 4 Map 5 Map 6 Map 7 Map 8 Clearwater Benchmark Grid Flood Insurance Claim Dates and Rainfall Events FEMA Repetitive Loss Properties - 2000 Flood Damage Prevention Ordinance Erosion and Siltation Control Policy Design Criteria for Stormwater Drainage Stormwater Policy CCMP — Clearwater Action Plan Stormwater Subelement — Clearwater Comprehensive Plan Substantial Improvement Application Flood Complaint Process Stormwater Utility Project List Topography Drainage Basins Repetitive Losses Flood Hazard Zones Coastal High Hazard Area Critical Facilities in the Floodplain CRA Boundary Stormwater Improvement Projects � � 1. Introduction � Clearwater is the second largest city in Pinellas County (102,874) and has undergone considerable growth since 1970. Between 1970 and 1990, the number of housing units doubled and the population increased by 80%. The City occupies � approximately 27 square miles of land, half of which is residential. Development and the resulting increase in impervious surface area has � substantially increased stormwater runoff since Clearwater's incorporation, making floodplain management an important component in protecting people and property. The National Flood Insurance Program's (NFIP) Community Rating � System (CRS) has been created by the Federal Emergency Management Agency (FEMA) to decrease vulnerability in flood prone communities. � The City of Clearwater initially submitted a partial Repetitive Loss Plan application in accordance with the 1990 special addendum on December 14, 1990. The Repetitive Loss Plan was completed on December 11, 1991 to satisfy the CRS �' requirements. This plan is a more comprehensive analysis of existing conditions and planned improvements than the previous plan and satisfies all minimum � requirements of the CRS program. The purpose of the Floodplain Management Plan is to identify flood hazards, floodplain management goals, possible mitigation measures and an action plan. � 2. Planning Process � Stormwater management is guided by two administrations within the City. The Public Works Administration is responsible for the design, construction and � maintenance of public drainage systems. Planning and Development Administration in conjunction with the Engineering Department is responsible for the review and approval of private drainage conveyance and retention. A Planner � within the Planning Department serves as the CRS Coordinator. Since its incorporation, the City has been involved with flood control and � prevention of flood damages, and the planning, design and construction of drainage improvements. Historically, flood management has been guided by the 1981 Alligator Creek Drainage Basin study and the 1981 Stevenson Creek � Drainage Basin study and 1988 update. Recent stormwater management has been guided by the 1989 Comprehensive Plan � updated in 2000, the 1997 Watershed Action Plan, the 1996 Allen's Creek Watershed Management Plan, the 1997 Alligator Creek Watershed Management Plan and the Stevenson Creek Watershed Management Plan under development. � Numerous other studies have also been completed. The result of these planning efforts and projects has been the creation of a Committee to more efficiently address stormwater issues. � � CRS: Floodplain Management Plan — 2000 City of Clearwater The Capital Improvements Stormwater Management Committee regularly convenes to discuss various issues related to stormwater policy. This committee is comprised of City representatives from the Engineering and Planning Departments, Public Service, Public Utilities and Maintenance. This committee has served as the planning committee for the CRS Floodplain Management Plan. 3. Causes of Repetitive Flooding The City of Clearwater is bounded on the west by the Gulf of Mexico, and on the east by Tampa Bay. The topography consists of low coastal plains on the barrier islands at sea level to a crown of 100 feet above mean sea level (m.s.l.) on the mainland in northeast Clearwater (Map 1). Approximately 11.4% of the City is located in the 100 year floodplain, most of which is subject to high tidal conditions (Appendix A). The Clearwater storm drainage system includes 114 miles of catch basins and drainage lines, 35 miles of drainage ditches, and 37 ponds or lakes. The coastal zone areas include 13 miles of catch basins and drainage lines. Natural channels and outfalls are the primary drainage outlets. All of the 7 drainage basins outfall to tidal water either directly through overland flow or a network of drainage-ways and storm sewers (Map 2). Three areas have stormwater drainage directly to the Gulf or Tampa Bay. Clearwater Beach which drains directly to the Gulf has 71 of the 84 repetitive loss properties. This area is the lowest lying area of the City is generally less than 6 feet above m.s.l. and was composed of coastal wetlands and marshes before development. Many of the properties, improvements and facilities are below the necessary elevation to avoid a 25 year tidal return event. 4. Flood Data The following summary indicates that a majority of the repetitive loss property reports from 1978 to the present, resulted from 4 storm/tidal events. All other repetitive loss property reports were caused from lesser events as stated. A. Weather Events Resulting in Extensive Damage A review of the repetitive loss properties from 1978 to the present indicates the following four storms documented by the National Weather Service in Ruskin, Florida, account for more than 78% of the losses (Appendix B). 2 � �� J � � � � � � � � � � �� O � � � �� . .��;�. �'� ��` f� � � � a LA` W t� � � W U � O U �uno� se��auid N N � C ::. � �A O �A O �N�AI�� O , � C ' . O � ' . U ', � . . E 0 � ❑ �� m y � � a� � � �i � w$ o� �� o� �� ; �� ,�, ,^ � � - __ ,,� „_.�� _ ., � �h-�- �'�., , ��o� � _ �,. ,,� � __ _ _. _ - �' (V\�" ;�� _ _ �_,. �- � 7 � c�. �, . n ,;�.'� - .� �� _, �� o; / ' .,.'._ �� i .. ._.�; o - `�,�. `_ .-�� iy, � , �[Y r. �� i � � ` _. . � -.� f,- \../ �;' f_„ ��i:, �� '' '-r`1 � � � �f i-� ' i i __ �t-l) l./ ' 11 _ --" '- o F � _.�5 `- -- __,—�--' --� ,�`:'j7 = L _IJ ys�d� O,�i �� _,' �., _, ,,I , _ I��F ,1 +� ,� ,�� S� Y��_� � «J�� r r_' � ^ � � -� _ -- 1�1,` _ �'� _ '],` ��i- �r"� . .�- , � �i�4/" ` ) �. '_' •�•j_i ' • ,``, I (` . � `�` �'' ,1� �. '" �' ', ,--: �' �QOa ` -_ � 6� __ _ yi4 �a -�-. , - -.- . . :. . � v � * `� -, , ,. ;; 3. V ♦ .� V♦ � � W � � � .� � � � � � � � `, .,r.rsy�r �','�`'�'� � �_. ,. , � _ _ -_7.. � � � rn. � �� . � � c W Q � `Z a �. m N �-. � � a�i U 4- 0 U W Z � 3 �uno� se��auid �, . -Y iW 1!J � C) ;� 'O _ - N m AV8 Ol ��oruna 1�3aia �'6 O � �v��Oy �� _u c �, '� �� w �s��m � M•- O b � C'O N `w�m�v A o a E A U �� a� R o � m q v y y c R A a 9 � � � ao�� LL yy � Z O•=� � C N > > > ` � � � �� 1 m J ._ ,� p �7 a uYi . �'� W ��, � _ �'� t�-. " �� I i� n t�u Q ' .� . � � tJ - : W W ci � a � c�.� ��n� �l ��oan . �� v Y W ,- 11J � c.� 'z 0 � z ; w � ��al/p c~i� ol ��oNna i�aa�o Y W W Q' V Z W J Q � � � 0 v 0 0 v 0 N � � � '6 .` O LL V d� i0 � �C' G � � 0 R � � � CRS: Floodplain Management Plan — 2000 City of Clearwater � � � � � 8/31/85 to 9/4/85 9/6/88 to 9/9/88 "Hurricane Elena ". Rainfall and high tides over a two day period flooded 52 houses with insurance. Stationary Front. Greater than 15 inches of rain in a four day period and high tides flooded 13 houses with insurance. 3/13/93 Winter No Name Storm. Rainfall and a tidal surge flooded resulted in 65 houses being flooded with insurance, the worst event in terms of number of claims. 10/6/96 to 10/8/96 "Tropical Storm Josephine ". Rainfall combined with high tide caused flooding in 34 houses with insurance. � B. Uther Weather Events Resulting in Less Extensive Damage The following rainfall and/or tidal events caused less extensive damage by having six or fewer claims, accounting for less than 22% of claims: � � � � � � � Date Claims 5/04/78 2 5/08/79 2 8/29/79 1 9/23/79-9/26/79 2 2/08/81 1 8/20/81-8/21/81 1 8/09/82-8/10/82 1 8/18/82-8/19/82 1 9/28/84 1 7/25/85-7/26/85 1 10/31/85 1 12/31 /86 1 7/02/87 1 7/20/87-07/21/87 5 11/22/88-11/23/88 5 2/28/93 1 9/11/93 1 10/04/95-10/OS/95 5 06/02/95-06/04/95 1 07/12/95 1 07/27/95 1 06/22/97-06/25/97 1 07/OS/97 1 10/31 /97 1 1/2/99-1/3/99 6 5 CRS: Floodplain Management Plan — 2000 City of Clearwater The City's design standards for protection against stormwater flooding from rainfall events is based on a ten-year event for new development and 100 year event for structures. This rainfall event of 7.5 inches over a 24-hour period is utilized when determining the size, slope, type and location of drainage conveyance facilities for stormwater relief of roadways within the City limits. The four major storms are all rain events and/or tidal events that exceed City design criteria. These criteria are consistent with those utilized by many communities within the State of Florida. Therefore, physical improvements to the stormwater system will not eliminate all properiy loss. 5. Areas of Repetitive Loss Properties Repetitive loss properties are properties which the National Flood Insurance Program (NFIP) has paid two or more claims of $1,000 or more in any given ten year period since 1978 (Appendix C). The City is divided into eight drainage basins not including four areas which. drain directly to Tampa Bay or the Gulf of Mexico. The 100 year floodplain is represented in 2 of these drainage basins (Map 3). None of the basins are unique to Clearwater, many cross municipal boundaries and also include unincorporated enclaves. Also, many areas along the eastern and western portions of the City have direct runoff to the Gulf of Mexico or Tampa Bay. This section provides an overview of where flooding problems exist, and provides the number of repetitive loss properties, the primary existing land uses and a description of the area. Two primary areas in Clearwater have had repetitive loss claims: Clearwater Beach and Stevenson Creek. The Alligator Creek basin currently has one repetitive loss property located within its boundaries. A. Clearwater Beach There are 71 repetitive loss properties located on Clearwater Beach, eight of which are located on Sand Key. Land use within this watershed is residential and commercial. Many of the commercial facilities are hotels, motels and restaurants which cater to the tourist population. Historically, the Island Estates neighborhood and fingers off of Hamden Drive and Gulf Boulevard along Sand Key were created through fill activities. 6 � CITY OF CLEARWATER REPETITIVE FLO�D LOSS � - 2000 � , 3 x� � �� J I ' �� — K� � f e �� — — x '0�'� — � ,�� k L �� 6 ``^ . . _ . .. � � � y - „�ii��'�. o��a � g � �� 0 a ;' soa�E�sB� �sT�, - � �� `�:' � -- �� '-- �_._ - _ - ' � ' -- ;4 � ----- �,'a � -- � � ;�� _� .�o . -� _. . ��,�, , � � Y�+ � �� - __ � - __ _ `� DREi � ?Si - CLEVELA i `I� C S NUT � ! I d `;, � z � . n. � - �+ w _ v �� e� _ `:r LY. � �� o �� Y � i w d 0 Ca �. F F W R1 z. ST b ST I I�w ¢I g a�l al o' � � ._ � � ' W00 LAWN � � � - BELLEAI - � . , . , , , ,, , _ ; , , . _ _ .._..� � - ---- ;'` �;x - �, ' ,�, w_„ � i � � x i, �, , r�, ,.. �� ` . . .. ' . - _ ' . . . x. .,. � �.: „ , ., � .. ... . . � , , .. � .., ... �. � � �� _. �, � �'. - .a y' � 'II� rlr''I}5C ._ � t� ;:, ; �; s� � . - �� PALMETTOI ST �l T ST GULF �:i � W a 3 VIEW � ; L�1 _ �sI i �_ � o _ ,. , �; ,. 5 _, <� � z a .'7 h c � Q � a w a w � z �' a w W � POINT x [N11�►�/�11I�J w � � W a ❑ U a w x CRS: Floodplain Management Plan — 2000 City of Clearwater Storm outfalls below mean high tide, lower than desirable building elevations, and the topography of the areas all were contributing factors to the repetitive losses, generally caused by tidal flooding. The highest benchmark on ClearwaterBeach is located along the Memorial Causeway and Island Way at 7.4 feet above m.s.l. The beach watershed was first studied and addressed in the 1997 Clearwater Watershed Action Plan. A high percentage of impervious acreage, increased channelization and a decreased headwater depressional storage area have contributed to flooding problems, which are typical of highly developed urban areas. B. Stevenson Creek Basin There are 12 repetitive loss properties located in the Stevenson Creek Basin. The Stevenson Creek watershed is highly urbanized with approximately 10% remaining undeveloped. The predominant land use in the watershed within Clearwater city limits is low density residential particularly east of Stevenson Creek and north of Drew Street. Land use west of Stevenson Creek and south of Drew Street is comprised of mixed urban land uses including low density residential, high density residential, commercial, office and industrial. The Stevenson Creek basin is the largest drainage basin in the City of Clearwater encompassing approximately 6,000 acres. More than sixty percent, or approximately 3,789 acres, is contained within the City limits. The remaining portion is located within the cities of Dunedin, Largo, and Pinellas County. Lakes within the watershed include Lake Bellevue (24 acres), Crest Lake (10 acres) and Lake Hobart (12 acres). Lake Bellevue and Crest Lake are adjacent to low density residential and recreational uses, while Lake Hobart is surrounded by a large area of low density residential land use. The topography of the Stevenson Creek watershed varies in elevation from 0 to 65 feet above mean sea level and is gently rolling. A high degree of development has resulted in extensive impervious surfaces and very limited amounts of natural streams and flood plains. Most constructed channels are inadequate for heavy storm runoff and are further restricted by small bridges and culverts which cross the creek frequently. Historically, the Stevenson Creek watershed provided examples of many different habitats found in Florida. The mouth of the creek is estuarine and a weir constructed at Palmetto Street along the creek separates this portion from the freshwater portion. South of the weir the banks are relatively steep and create only a small zone for wetland vegetation. This extends to Court Street where the creek runs through the Glen Oaks Municipal Golf Course. The southern end is confined by vertical walls before opening up into a wider expanse of marsh area. This area is characterized by cattail, pickerelweed, primrose willow and water lettuce. 8 �� L_.; � � CRS: Floodplain Management Plan — 2000 City of Clearwater South of Druid Road to Jeffords Street, the stream is controlled by a weir at Druid and functions a long linear retention area. Emergent vegetation along the bank is minimal. South of Jeffords, a significant amount of aquatic vegetation occurs in the streamway with wetland vegetation confined to a narrow bank zone in this channelized section. Exotic and nuisance trees such as white mulberry, earpod tree and royal poinciana line the area further south. From Lakeview Road and beyond, the stream channel is confined to a narrow easement and is overgrown with exotic and nuisance species until the stream is piped underground at Bellevue Boulevard. The Stevenson Creek watershed has had two watershed wide investigations and one study of localized problem areas completed. Currently, a new watershed management plan is being developed for Stevenson Creek which is expected to be completed in 2001. C. Alligator Creek Basin There is one repetitive loss property in the Alligator Creek watershed. The Alligator Creek watershed lies within three jurisdictions; the City of Clearwater, Pinellas County and the City of Safety Harbor. This is the most urbanized watershed in the City, with a large industrial area covering the western portion, low density residential areas in the central portions and a wide corridor of commercial land use along U.S. Highway 19. The Alligator Creek watershed is the second largest watershed within the City of Clearwater. It drains about 5,691 acres of which nearly 60% is within the Clearwater City limits. The main stem of Alligator Creek originates near the intersection of Keene Road and Sunset Point Road on the northern edge of a large industrial area adjacent to the Clearwater Airpark. There are five defined tributaries which discharge to the main creek channel. The main stem flows east, eventually discharging to Alligator Lake which in turn discharges into Old Tampa Bay. Alligator Lake is fitted with a salinity control structure which prevents saltwater intrusion into the lake and creek. � Significant lakes within the watershed include Lake Chautauqua (50 acres), Moccasin Lake (30 acres) and Alligatar Lake (80 acres). Lake Chatauqua discharges into a south flowing tributary of the main channel. Moccasin Lake is located almost centrally along the length of the stream at Mocassin Lake Park. Runoff is received from the surrounding areas and the lake as well as rivo retention ponds which outfall into a channel and subsequently into the main channel. Alligator Lake is the most downstream lake in the Alligator Creek watershed and receives runoff from the entire upstream portion of the watershed as well as from local residential runoff. � The Alligator Creek watershed's topography is such that the creek has two main areas of headwaters. One is located in a topographically high area north of Lake �, 9 CRS: Floodplain of Clearwater Plan — 2000 Chautauqua (90 feet above m.s.l) and the other is located west of Keene Road (65 feet above m.s.l.). Several studies have been performed for the Alligator Creek basin over the past 15 years. The first of these studies was conducted in 1981 by HDR for Pinellas County as part of a county-wide comprehensive stormwater drainage master plan. A detailed study in a portion of the basin was conducted for the City of Clearwater in 1989 by the U.S. Army Corp of Engineers. Most recently in 1997, Parsons Engineering Science, Inc. perfortned the most comprehensive study for this basin. 6. Floodplain Development A. Development Trends The City of Clearwater was incorporated in 1897 at which time the area was important as a trading post. The City remained a small town with a 1930 population of 7,607 until after World War II, when the population doubled to 15,581. Similar to the rest of Florida, Clearwater experienced significant growth from this time on. Garden Memorial Causeway, now referred to as Memorial Causeway, was constructed in 1928 and connected mainland Clearwater with Clearwater Beach. The Causeway replaced an old wooden bridge and allowed for better access to the Clearwater's barrier islands. In the late 1950's, traffic counts by the Florida State Highway Department indicated 6.3 million cars annually traveled the roadway. Dredge and fill projects were numerous in Pinellas County during this time. Clearwater's Island Estates neighborhood was the City's most prominent fill project located between Clearwater Beach and the mainland. This neighborhood was described as "Venice-type development for exclusive homes". Although this neighborhood is located on the waterfront, only one repetitive loss property has been identified. From 1970 to present, Clearwater's population has doubled, with most of this growth occumng between 1970 and 1990. Clearwater has become virtually built out and experiences growth primarily through relatively small annexations and redevelopment projects. The beach is a mix of residential and commercial uses and is generally redeveloped on a parcel-by-parcel basis. B. Development Constraints 1. Clearwater is surrounded by bodies of water to the east and west and has no large undeveloped land areas to the north or south. 10 � � � ,� �� CRS: Floodplain Management Plan — 2000 City of Clearwater 2. Clearwater's population has experienced low growth since 1990, increasing from 98,784 to an estimated 102,874 in 1998. 3. Clearwater has limited vacant land (4.4%) for development in the floodplain. 4. Environmentally sensitive lands are designated Preservation on the City's Future Land Use Plan Map. 25.6% of the floodplain has the future land use designation of either Preservation (3.1%) or Recreation/Open Space (22.5%). These designations do not permit residential or commercial development. C. The Floodplain The extent of flood hazard exposure in developed floodplain areas is largely due to at-grade construction (Map 4). Older developinents, built prior to floodplain regulation, are often susceptible to coastal flooding. These properties are referred to as pre-FIRM because of their construction before the adoption of Flood Insurance Rate Maps (FIRM) requiring construction above base flood elevation. Formal regulation of floodplain development did not occur until 1980 when the Flood Damage Prevention Ordinance was passed. The Flood Damage Prevention Ordinance (Appendix D), contained in the Clearwater City Code, regulates coastal construction in all areas of special flood hazard, consistent with 161 Florida Statutes and the National Flood Insurance Program. The Ordinance refers to the Federal Emergency Management Agency's (FEMA) maps in defining the coastal high hazard area. Special construction standards are required for new � development, substantial improvements and the facilities that service areas vulnerable to flooding. The standards are intended to minimize impacts on natural features and allow structures to withstand the forces and flood elevations of the � 100 year storm. 60 of the 84 repetitive loss properties are located on north Clearwater Beach which is entirely residential and primarily constructed pre- FIRM. Post-FIRM base flood elevation for the North Clearwater Beach area is � � � � � generally 11 feet. The Erosion and Siltation Control Policy was implemented in 1984 (Appendix E). These measures require erosion and siltation control methods to be employed during construction. Land clearing and grubbing, stabilization of denuded areas, protection and stabilization of soil stockpiles, protection of existing storm sewer systems and sediment trapping procedures are included in this policy. The Design Criteria for Stormwater Drainage was implemented in 1991 (Appendix F). In general, these standards are a combination of requirements set by the Southwest Florida Water Management District as administered by the Pinellas County Department of Environmental Management, and requirements set by the City of Clearwater, Public Works Administration. This document prevents damage from flooding by reducing peak flow of surface water runoff and ensures water quality by managing the concentration of pollutants entering surface waters. 11 CRS: Floodplain Management Plan — 2000 City of Clearwater The City also utilizes a Stormwater Management System Policy guidance manual. This manual is intended to provide water policy guidance for the development and implementation of programs, projects, rules and plans relating to City water resources and is only intended as a reference guide (Appendix G) The Tampa Bay National Estuary Program (TBEP) was established in 1991 to assist the community in developing a comprehensive plan to restore and protect Tampa Bay. The program is part of a national network of 28 estuary programs established under the Clean Water Act and administered nationally by the U.S. Environmental Protection Agency (EPA). Local administrative support is provided through the Tampa Bay Regional Planning Council. Charting the Course — The Comprehensive Conservation and Management Plan (CCMP) for Tampa Bay, provides strategies to repair and protect the Tampa Bay ecosystem in the most cost-effective manner and according to the principles of ecosystem management. Clearwater is a TBEP participant and has created an action plan to meet the goals of the CCMP (Appendix H). D. Floodplain Uses Existing floodplain land uses are inventoried and summarized in the table below. The most vulnerable uses located in the Coastal High Hazard Area (Evacuation Zone A) are also included (Map 5). Analysis of existing floodplain land uses results in the following major findings: 1. 11.4% (1,850 acres) of the City is located within the 100 year floodplain; 2. 74°/a of the floodplain acres are commercially developed, 25.6% are preservation or recreation/open space and .4% vacant. 3. 68 acres of mobile home land use is located in the flood plain. Floodplain Existing Land Use Land Use Acres Single Family 593 Multifamily 129 Mobile Home 68 Public-Semi Public Commercial Industrial Recreation/Open Space Preservation Vacant 113 284 46 417 58 82 Miscellaneous 60 TOTAL 1,850 12 � i � � e � a m • � s a . 3 3 D i K � �� .__ _ � �,, � �-j�`-- � - _ __ __-� ---�._ 0 ! / !I!/,I / n � ..—^— _- - /�..��.�s;,c'� I �_�- �'/ � l i� n'-� . . ( i �_ � 1 v �/"' ' (I`tf!1`�;.r - f � y r �_ � , "� � ��\�;-�_� �— �'= D _�' I ��.. � O C , �_. _'_'J � I Q �`�6d `Q� 0�9'+� � � �� h �. o �7 � `- -- � � 0 a � � � m � J� � ;� � o ° � �, 9 n � V C�O 0 r� v � X� O O C D � w m D � am ��Ngd ��a � p, ixC N � N � N � � � � Q p I�ll } i -^ � :p � �o UI N +� � N (� 1� �d � $� $�, � � Os W 1D � � N O 3.L1 a fl Q d �Q g p m��iL m G �a �' 3� y 1° y a �dd��, �° Q a� r � � 0 � �� [ 3 6 f �,�Z m m� < D = � D�r= m O � �� <a��t T Z �TO m^ c°�mfn 4� � n�i I�p �i � � � � �� a� �� S. � � xA o�i d p g y O� N � O � � � N � � p � � � � � � � �p � � � � N my O ' O �� In �'W ngGa M Q � g� $-�±<� m�» m a y � � �, �'m '� � �" �. � Z n' �a �� - �(p• Z m N N A Y1 p, O D ��$ �.m o � m n �, � , -. . , ;� , � 0 ` d � � � � � � � IA � � �- .._ . .. .- . CRS: Floodplain Management Plan — 2000 City of Clearwater E. Critical Facilities in the Floodplain Critical facilities are essential services needed by the city residents such as fire stations, police stations, potable water facilities, sewer facilities, hospitals and other utilities (Map 6). The following four critical facilities are located in the floodplain: Facility Address Function Lift Station 16 105 Pierce Blvd. Sewage Treatment Lift Station 45 Marshall St. Plant Fire Station 46 7. Future Development 16 1371 Gulf Blvd. 1605 Harbor Drive 534 Mandalay Ave A. Activity Center Development Sewage Treatment Water System Fire/EMS Station The Clearwater Comprehensive Plan's Future Land Use Element identifies one activity center located in downtown. This activity center has 17 acres which are located in the floodplain. This area is a major employment center for Clearwater and includes Pinellas County and City of Clearwater government offices, and also commercial, entertainment and industrial development. The future land use is primarily classified as Central Business District and thus, the land development regulations allow the most intense development. However, limited development currently exists in the floodplain on the western edge of downtown and future development is limited due to the City ownership of the most of the land. B. Redevelopment District Downtown's redevelopment district is essentially the downtown activity center and has the same acreage in the floodplain (Map 7). The Town Pond, a downtown drainage facility, is proposed in the Capital Improvements Program, and will provide an expanded stormwater facility to resolve persistent flooding of streets and structures. The project's intention is to promote redevelopment a more comprehensive approach to handling stormwater runof£ Redevelopment of downtown has and will continue to be a priority of the City. Mixed use is desired and encouraged by the Redevelopment Plan adopted in 1995. C. Residential Development The existing single family residential character of the City is maintained with approximately 5,156 acres or 39% of the net land devoted to residential uses at a density not exceeding 7.5 units per acre. 616 acres (33%) in the floodplain are single family residential. Generally, this density is not proposed to change. Single-family properties located on Clearwater Beach are undergoing redevelopment on a parcel-by-parcel basis and are constructed to current FEMA requirements, limiting potential flooding. � � � � � � � � � .�� ;�-i" �?'^'- -- _ I�uno� se��auid i m � Q � c� N (0 _ � Q � �Q �U = N � � � � � a� C N N U Q` � U .N .� 0 � � � � � � . .0 � � � - W � � i ` } Q � � _ d � �' .. - � .. .. ' ..- _ . �� _ .:. �. � i -_ .:. . �� .��, ._- .. _, � � '... ;_ �';:.. . . . . . . . .�._ �- . . � ��_ � � � � � _ � � � � - �� - - - - — -F•�-+ L - � `-, M .� - �� N _ � �� N = � �. � � V � � � � � � � � _ � � U.UU w •� ^' O Z�N � � �U�� 3 � � �:�� C O N � � J � a� a�i � � � C O N � � J � � � � � C � d N � � N i � L C� G C� � C � y=d f�II � � � 0 0 � 0 _� � � � � �17 O O l!) O � �� ..... ��'i-'. � 1 �'! ° `�°'7 ��. 4 � � # � � � � � � �, � } � � N � A Y m � � � � � � O � � � U �8 H � � p C W � � � C N � m N � N O { •� ` O U t m� m �a '- w. �a �t � C � wU•°-� c �6 �a dl O. o a d� o� V p m¢= 10-° '�' > � cQ �� fl o � � �'° mom>� t�n � m� � d � � ��m�� o C�am'$a°a !AW � � � � � CRS: Floodplain Management Plan — 2000 City of Clearwater Multifamily residential uses (7.6+ units per acre) occupy 1,980 acres or 15% of the City. 130 acres (7%) of multifamily residential comprises existing land uses in the floodplain. Areas located in the floodplain requesting density increases are required to mitigate potential impacts by constructing to the proper elevation. D. Potential Annexation Areas Clearwater has a voluntary annexation program that encourages incorporation of properties located within the Clearwater Planning Area and eligible for annexation under the Florida Statutes. There are approximately 160 enclaves, located within the Planning Area, most of which are developed. Limited acreage exists in the floodplain eligible for annexation. E. Land Use Planning for Annexation Areas Appropriate land use planning for annexation areas consider existing development conditions and the adequate provision of infrastructure and services. In the early 1990's, Pinellas County and local municipalities, including Clearwater, adopted consistent future land use plans. This allows land use areas in the unincorporated areas to correspond with City plans, providing property owners an easier transition into the City. Often, property owners have an interest in annexation to redevelop. These redevelopments must meet cunent codes and regulations including drainage and elevation. The Flood Damage Prevention Ordinance of Clearwater currently and will continue to govern construction in future annexation areas. � The City of Clearwater and Southwest Florida Water Management District (SWFWMD) regulates construction of new drainage systems. Recent and future developments in the Clearwater Planning Area will continue to be required to � comply with applicable City and SWFWMD water quality and quantity regulations. � � � � � L�.J F. Provision of Services to Annexation Areas Potential annexation areas such as residential properties may be on septic systems and often request to tie into the sanitary sewer system after annexation. These septic systems may be substandard and in need of replacement. Other utilities exist on developed parcels and are usually adjacent to undeveloped parcels. G. Flood Hazards for Annexation Areas A limited amount of area eligible for annexation is located in Flood Zone A. There is not a concentration of potential annexation areas in a flood hazard area, but rather a scattered pattem. However, the central and northern portions of the City have more enclaves in flood areas than the southern section of Clearwater. � 19 CRS: Floodplain Management Plan — 2000 City of Clearwater 8. Planning Goals There are numerous planning goals that are appropriate to the Floodplain Management Plan as adopted in the 1989 Comprehensive Plan and later amended. These community policies have been completed, will be completed or are ongoing, and are found in the Future Land Use, Coastal Management, Conservation, Capital Improvements Elements and the Stormwater Subelement. A. Future Land Use Element 1. 1.1.6 All development and/or redevelopment activities in floodways and floodplains shall be controlled through consistent application of local, state, and federal regulations, mitigation and management plans, and the permitting process. � � 2. 1.1.8 Mitigation plans for alteration of non jurisdictional wetlands, beach �h dunes, swamps, marshes, streams, creeks, one hundred (100) year flood plains, or lakes shall require not less than a 1:1 ratio of mitigation land (on- or , off-site) as approved by the Public Works Department and/or City �� Commission. 3. 6.1.5 In addition to overall consistency with the City's comprehensive plan, the proposed location of a new or expanded public education facility of the Pinellas County School District within one of the land use categories listed in Policy 6.1.2. shall be reviewed and considered with the following general criteria: � 4. There are no significant environmental constraints that would �� preclude development of public education facilities on the site. 6. The proposed location is well drained and soils are suitable for development or are adaptable for development and outdoor educational purposes with drainage improvements. 7. The proposed location is not in conflict with the County's Stormwater Management Plan and the City's adopted watershed management plan, if applicable. 8. The proposed location is not in a velocity flood zone or a floodway. � 20 � CRS: Floodplain Management Plan — 2000 City of Clearwater B. Stormwater Subelement ( Appendix I— complete subelement) 16.2.3 All stormwater management improvements should seek to meet applicable goals, guidelines, and regulations established to provide flood protection and pollution abatement. 2. 16.3 Objective - Lower highwater profiles during storm events, as necessary, to reduce house flooding occurrences and to lessen the resulting adverse effects on public health, the natural environment, public and private properiy. 3. 16.3.1 Continue to provide a program of regular maintenance to the stormwater management system to ensure maximum efficiency and performance. Ensure that stormwater management plans include measures to remove trash, sedimentation and other debris which impede flow and incorporate structural and non-structural measures to reduce or eliminate the discharge of oil, grease, heavy metals, and other suspended particles into the stormwater management systems. C� 5 0 16.3.2 Natural and man-made wetlands shall be considered as a means to provide stormwater management wherever possible and shall be maintained far hydrologic purposes. The efficiency of natural and man-made systems to convey stormwater runoff shall be protected through the provision of routine water quality maintenance schedules overseen by city inspections. 16.3.3 Continue to provide multiple use facilities, such as recreational open space uses, with open channel stormwater management systems, when appropriate. 16.3.4 Development and redevelopment activities shall comply with all stormwater management design standards and criteria. 7. 16.3.5 Structural Development shall be prohibited where it is determined that such development will have an adverse impact on stormwater storage areas, increase flood prone areas, significantly increase rates of runoff, or cause other unfavorable drainage conditions. Both man-made and natural systems shall be treated on an equal basis as a sensitive preservation area; no distinction shall be made between a natural system and a man-made or man altered hydrologic system. 8. 16.3.6 Prohibit new building, development or construction that will result in building(s) constructed within/or over stormwater retention/detention ponds, streams or channels. All wetlands, streams, channels, or other hydrologic features, whether wetlands, ponds or bodies of water having intrinsic hydrologic, biologic and zoological functions with no distinction made in regard to its status to whether it is man-made or natural shall be considered 21 CRS: Floodplain Management Plan — 2000 City of Clearwater for a Preservation Land Use Plan classification to ensure protection from development. 9. 16.3.7 Continue active participation and cooperation with the National Flood Insurance Program and the Florida Emergency Management Agency for the puipose of recognizing flood prone areas, and establishing abatement programs that endeavor toward a reduction in damages and losses due to flooding. 10. 16.3.8 Continue the established requirement of a twenty-five foot setback from the tops of a bank from all wetlands whether natural or man-made, and require finished floor elevations in areas adjacent to lakes, bays, creeks, the Gulf of Mexico, Tampa Bay and Old Tampa Bay, and other flood prone areas. 11. 16.4 Objective - Continue the implementation of the most cost effective and efficient plan to reduce the occurrence of street flooding where safety issues and traffic problems exist as prioritized and set forth in the Capital Improvement Element, and listed in the stormwater management plans. 12. 16.4.1 Identify areas where inadequate stormwater management easements exist, and obtain proper access to stormwater management channels, structures and appurtenances for maintenance purposes. 13. 16.4.2 Improve all street stormwater management systems where deficiencies exist. 14. 17. Goal - Discharges of stormwater shall be managed to provide flood protection for the citizens of the city of clearwater and to preserve, protect, and enhance the water quality of receiving waterbodies. 15. 17.1 Objective - The protection, restoration, and enhancement of water quality associated with stormwater runoff will be considered a function of the City's overall stormwater management plans. 16. 17.1.1 The City shall incorporate water quality protection and enhancement criteria into the City stormwater management plans. 17. 17.1.2 The use of natural alternatives, the conservation of natural stormwater management systems, and the protection and improvement of the quality of receiving waters shall be a goal of the City's stormwater management plans. � � � ,� 22 � � � � � � � � � � CRS: Floodplain Management Plan — 2000 City of Clearwater 18. 17.1.3 Management plans shall continue to be developed on an ongoing basis for waterbodies with known or suspected water quality problems in the City to include Tampa Bay, Clearwater Harbor, Stevenson Creek, Allen's Creek, and Alligator Creek. 19. 17.1.4 The City shall systematically and timely prepare watershed or waterbody specific management plans for waterbodies within the City. Such plans shall include both water quality and flood control considerations and recommended funding sources. 20. 21 22. 17.1.5 The City shall implement all City-approved watershed management plans. 17.1.6 All City stormwater management plan projects within watersheds of The City shall comply with applicable SWIM Plans for that waterbody or watershed. 17.1.7 The City shall continue to coordinate with and supplement the County's surface water monitoring program. C. Coastal Management Element 19.1 Objective - Clearwater shall continue to protect beaches and dunes by use of the State Coastal Construction Control Line as the building and land alteration setback line for purposes of administering land development ordinances. The standard building code, and F.E.M.A. and City coastal construction regulations will continue to govern the structural integrity of new buildings. 2. 19.2 Objective - The coastal high hazard areas includes areas that have experienced severe damage or are scientifically predicted to experience damage from storm surge, waves and erosion. The City shall direct population concentrations away from known or predicted coastal high hazard areas consistent with the goals, objectives and policies of the Future Land Use Element in the Clearwater Comprehensive Plan. � 3. 19.2.1 Clearwater shall continue hazard mitigation by participation in the National Flood Insurance Program's (NFIP) Community Rating System, Pinellas County's Local Mitigation Strategy, administration of building and � rebuilding regulations consistent with City and F.E.M.A. regulations, prohibition of beach sand dune alteration, and restriction of development in flood plains. � � �J 4. 19.2.3 The City will encourage natural hazar� mitigation actions recommended by any interagency hazard report that the City deems appropriate. 23 CRS: Floodplain Management Plan — 2000 City of Clearwater 5. 19.2.4 General hazard mitigation will be encouraged to include the regulation of building practices, floodplains, beach and dune alteration, stormwater management, sanitary sewer and septic tanks, and land use to reduce the exposure of human life and public and private property to natural hazards; and appropriate recommendations frorn the Pinellas County Local Mitigation Strategy will be incorporated into the Clearwater Comprehensive Plan. 6. 19.6.2 Redevelopment proposals and plans shall be reviewed for compliance with the goals, objectives and policies of the Comprehensive Plan and other appropriate plans including the City's NFIP Community Rating System Floodplain Management Plan. 7. 20.3 Objective - The City shall continue to protect coastal wetlands and wildlife habitat to maintain or increase the acreage or threatened and endangered species population. 8. 20.1.3 Restoration and enhancement of disturbed or degraded estuaries identified by the S.W.I.M. program shall be accomplished by strict regulation of proposed impacts to wetlands and by controls on the operation and installation of marinas and other water-dependent uses. 9. 20.1.4 Development applications shall be reviewed to ensure that proposed new development or redevelopment will not encroach on or remove wetlands or beaches. New development and redevelopment shall be guided away from environmentally sensitive areas and into those most able to withstand impacts. 10. 20.1.5 Marina siting criteria shall restrict marinas and related activities from areas of environmental significance, which include but are not limited to the north end of Clearwater Beach, grassbeds in Clearwater Harbor, Cooper's Point, and Clearwater Harbor Spoil Islands 25, Sand Key Park, and the southern edge of Alligator Lake. Marinas shall only be allowed in these areas with appropriate and approved mitigation. 11. 20.1.6 The City shall work toward reducing the existing quantity and improving the quality of stormwater runoff to estuarine and surface water bodies by ensuring that development and redevelopment adheres to the treatment standards set forth in State Water Policy, and complies with the retention and treatment requirements of Chapter 62-25 F.A.C., the Environmental Resource Permitting Rules 40D-4, 40D-40, 40D-400, F.A.C. of the Southwest Florida Water Management District (SWFWMD) and with any more stringent local regulations. 24 � � � L� � � � � LI � � � � � CRS: Floodplain Management Plan — 2000 City of Clearwater 12. 20.1.5 The City shall proactively pursue and facilitate coordination and participation in the implementation of the Tampa Bay Estuary Comprehensive Conservation and Management Plan (CCMP), and related plans, as a means of achieving mutual local and regional resource management and restoration goals for Tampa Bay. 13. 20.1.6 The City shall permit passive recreation uses in appropriate coastal areas as identified in the Future Land Use Element of the Comprehensive Plan. 14. 20.1.7 The City shall coordinate with Pinellas County and other local governments for water quality monitoring and related program planning. 15. 201.8 Future land uses which are incompatible with the protection and Conservation of wetlands and wetland functions shall be directed away from wetlands. 16. 20.1.9 The type, intensity or density, extent, distribution and location of allowable land uses and the types, values, functions, sizes, conditions and locations of wetlands are land use factors, which shall be considered when directing incompatible land use away from wetlands. 17. 20.1.10 Land uses shall be distributed in a manner that minimizes the effect and impact on wetlands. The protection and conservation of wetlands by the direction of incompatible land uses away from wetlands shall occur in combination with other goals, objectives and policies in the comprehensive_plan. Where incompatible land uses are allowed to occur, mitigation shall be considered as one means to compensate for loss of wetlands functions. 18. 20.4 Objective - Clearwater's coastal barriers include both natural resources and a complex built environment. Shall be preserved from encroachment and development. 19. 20.2.1 Restoration and enhancement of disturbed or degraded dune and beach areas shall be implemented with the appropriate methods and quality of material necessary to enable successful reestablishment. 20. 20.2.2 The specific and cumulative impacts of development and redevelop- ment upon wetlands, water quality, water quantity, wildlife habitat, and beach and dune systems shall be limited by: strict maintenance of existing setback requirements, adherence to storm water detention requirements, retaining all publicly owned natural habitats in their undeveloped state and transfer of development rights. 21. 20.5 Objective - Clearwater Harbor and Tampa Bay are designated Outstanding Florida Waters and are under a non-degradation rule. � 25 CRS: Floodplain Management Plan — 2000 City of Clearwater Clearwater will continue to manage stormwater runoff and control erosion during construction to reduce waterborne sediments. As additional initiatives are approved under the SWIM program, they will be considered for inclusion in the Community Development Code. 22. 20.3.1 Restoration and enhancement of disturbed or degraded drainage systems shall be implemented by upstream detention of stormwater, maintenance of existing drainage channels, widening of bridges, culverts and other stormwater conveyance structures. 23. 20.4 Objective - Clearwater shall seek funding and approval to renourish eroded beaches on Sand Key and Clearwater Beach when necessary. Restored beach areas shall be considered public resources seaward of construction setback lines and shall not be counted as plan density or buildable lot area. 24. 20.4.1 The City shall seek State funding and approval to enable beach renourishment when necessary. 25. 21.6 Objective - Clearwater shall administer land development regulations to protect public and private property and human life from the effects of hurricane winds and flooding. 26. 21.1.1 The City shall grant building permits in compliance with the rules of F.E.M.A. 27. 21.1.2 Post-disaster redevelopment plans of coastal areas shall be designed to reduce the vulnerability of public and private property and include proper elevations. 28. 21.3.2 The City shall develop operating policies that address post-disaster redevelopment needs to facilitate permissible reconstruction in a timely manner, which includes participating in the Pinellas County Local Mitigation Strategy. 29. 21.5.3 To the maa{imum extent feasible, sanitary sewer facilities and lift stations shall be built to resist the infiltration by floodwaters. The hazard mitigation annex, which covers the wastewater treatment system, shall be followed in the event of a stonn; and hazard mitigation plans shall be updated as necessary. 30. 21.5.4 Immediate repair and clean-up actions after a storm shall be limited to removal of debris, and repair of existing primary structures to allow re- occupancy (repairs to allow re-occupancy shall be considered when damage is limited to less than fifty percent (50%) of the value of the structure prior to damage). Long-term repair and redevelopment shall consist of upgrading 26 � � � CRS: Floodplain Management Plan — 2000 City of Clearwater structures and accessory facilities to expand habitable space or repair of greater than fifty percent (50%) of the value of the structure prior to damage. Post-disaster redevelopment and long-term repair can only be permitted consistent with the requirements of F.E.M.A. and the Florida State Statutes. 31. 21.5.4 Damaged infrastructure shall be repaired or rebuilt to minimize the potential for future damage. Unless the facility is necessary to serve the population of the coastal zone, consideration shall be given to relocating public facilities outside the coastal zone. 32. 21.5.6 Repair and rebuilding of critical facilities such as water facilities, � sewage treatment plants and lift stations, and other utilities damaged in future storms shall be reconstructed to minimize hurricane vulnerability. � �� L....: � � l�� _ J � � � D. Conservation Element 22.7 Objective - The City shall continue to protect floodplains, drainage ways, and all other natural areas having functional hydrological characteristics. 2. 22.2.1 Any construction in the one hundred (100) year floodplain shall comply with all requirements and standards of the Federal Emergency Management Agency of the Federal Flood Insurance Administration, and the City's building codes. 3. 22.2.2 Construction and development activities in natural drainage channels shall be prohibited, except for public flood protection projects designed to correct specifically identified pre-existing flood conditions and for which no reasonable alternative flood control measures are available; such activities shall not increase the flood potential for areas outside the proj ect target area, nor shall the overall water quality of the affected drainage channels be reduced as a result of the activities. 4. 22.2.3 The City of Clearwater shall continue to prioritize receiving waters for the development of specific stormwater management plans in coordination with Pinellas County. 5. 22.2.4 Utilize design methods which will trap stormwater sediments before entering surface waters. 6. 22.2.5 Cooperate and coordinate activities with the Southwest Florida Water Management District (SWFWNID) and the Florida Department of Environmental Protection (FDEP) in the implementation of the Surface Water Improvement and Management (SWIM) Program. 27 CRS: Floodplain Management Plan — 2000 City of Clearwater 7. 22.2.6 Natural filtration techniques and methods such as grassy swales and natural wetland water storage should be implemented when appropriate to provide purification of runoffbefore entering any surface waters. 22.2.7 Transfer of development rights should be implemented to provide alternatives to development and degradation of wetlands and other natural resources. 9. 22.2.8 Protect all natural drainage channels from destruction or any restriction of their functional use and regulate protection through the Clearwater Community Development Code: this policy may be waived for any public flood conditions when it can be demonstrated that: (a) No reasonable alternative flood control measures are available; (b) The project will not increase the flood potential for areas outside the project target area; and (c) Overall water quality of the affected drainage channel will not be reduced as a result of the project. 10. 22.2.9 Continue to protect, Clearwater's bayfront area from undesirable land uses and/or further construction, encroachment and destruction of the "bluff' and the bayfront shoreline, through the Future Land Use Plan, the Community Development Code and in accordance with the City Charter. 11. 22.8.10 Pesticide dealers, auto paint and repair shops, salvage yards, and other small-quantity generators of hazardous waste identified as per Florida State Law shall provide storage of hazardous products and by products outside of the elevation of the 25-year flood plain, shall not cause the direct discharge of runoff from said storage areas into water of the State, and shall have containment/separation traps of adequate size to prevent any discharge in case of a spill or accident. 12. 23. Goal - Discharges of stormwater shall be managed to provide flood protection for the citizens of the city of Clearwater and to preserve, protect, and enhance the water quality of receiving waterbodies. 13. 14. 23.1 Objective - The City shall continue to protect, improve and enhance surface waters from stormwater runoff discharging into both interior and coastal surface waters. 23.1.1 The City shall incorporate water quality protection and enhancement criteria into all City stormwater management plans. � �. � � � 15. 23.1.2 The use of natural alternatives, the conservation of natural drainage "� systems, and the protection and improvement of the quality of receiving waters shall be a goal of the City stormwater management plans. � � 28 � � � � � � ,� CRS: Floodplain Management Plan — 2000 City of Clearwater 16. 23.1.3 A stormwater utility fee or other adequate funding mechanism shall be continued to provide the necessary funding mechanism to achieve this goal. 17. 23.1.4 The City shall continue to implement a stormwater ordinance requiring redeveloped sites other than single family residential areas, to in- corporate water quantity and quality controls consistent with new development regulations, recognizing that case by case limitations may call for partial controls, off site improvements or payments in lieu of improvements to achieve this goal. E. Recreation and Open Space Element 24.4.5 Preserve coastal and interior wetlands, floodways, floodplains, and other environmentally significant areas to protect their aesthetic and environmental qualities which benefit the City. 2. 24.4.6 Coordinate recreation planning with other plans concerning water quality, stormwater management, fish and wildlife management, and environmental education. � 3. 26.2 Objective - Clearwater shall participate on a technical and a policy level in the preparation, planning, funding, coordination, and implementation of a master stormwater management plan with other governmental entities, � SWFWMD, State Deparhnent of Environmental Protection (DEP) and other affected parties. � � � � � � � 5 C 7 26.5.1 The Public Works Department shall continue to coordinate and oversee preparation of stormwater management plans. 26.5.2 Clearwater shall participate in interlocal agreements to implement and fund stormwater management plan improvements. 26.3 Objective - Clearvvater shall coordinate with Pinellas County's Department of Environmental Management and with the Department of Environmental Protection to upgrade and maintain air quality. 26.6.1 Clearwater shall cooperate in air quality monitoring and modeling efforts of the Pinellas County D.E.M. 26.6.2 Clearwater shall continue and seek to expand, as necessary, joint use agreements for recreational facilities with the Pinellas County School Board and other recreation facility providers. � 29 CRS: Floodplain Management Plan — 2000 City of Clearwater F. Capital Improvements Element 28.2.3 Infrastructure damage in coastal high hazard areas during previous storms was limited to beach and water-dependent uses. Repairs and rebuilding of sewage treatment plants and lift stations damaged in future storms shall be conducted with such methods to minimize hurricane vulnerability. 9. Flooc! Management Activities The City of Clearwater has completed and will continue to implement flood management activities that are ongoing and proposes new proj ects. These fall into the CRS Floodplain Management Activities: preventive, property protection, natural resource protection, emergency services, structural projects. A. Preventive Preventive activities keep flood problems from getting worse by regulating land use and development through planning, land acquisition and/or regulation. Project A.1 The City will continue to participate in the Pinellas County Local Mitigation Strategy process to address reducing the impact of natural disasters. This group meets a minimum of once annually to reevaluate the Strategy which was originally adopted in 1999. Project A.2 The City will assist the Tampa Bay Regional Planning Council and Pinellas County with Project Impact implementation such as providing property information, data, and other general support activities. Project Impact is the FEMA mitigation initiative to reduce local vulnerability to natural disasters. Project A.3 The Planning Department will research amending the Comprehensive Plan to prohibit new construction of hospitals, nursing homes and convalescent homes in the Coastal High Hazard Area. Project A.4 The Planning Department will research amending the Comprehensive Plan to prohibit the siting of new mobile home paxks within the Coastal High Hazard Area, and limit expansion of existing sites to the boundaries of the currently developed lot. Project A.S The City will pursue the acquisition of the Friendly Village of Kapok Mobile Home Park. This area has a history of flooding and is an important component to alleviate flooding in other areas of the Alligator Creek basin. Project A. 6 The City will pursue the acquisition and construction of a site in the Downtown area of the coastal basin referred to as the Town Pond to act as a storm facility to resolve persistent flooding of streets and structures. 30 � � CRS: Floodpiain Management Plan — 2000 City of Clearwater Project A. 7 The City will continue to support implementation of the Tampa Bay � Estuary Program's Comprehensive Conservation and Management Plan for Tampa Bay through its action plan. � � B. Property Protection Property protection activities aze usually undertaken by property owners on a building-by-building or pazcel basis. Project B.1 The Planning Department should assist the Tampa Bay Regional Planning Council to help homeowners pursue flood and natural disaster mitigation grants made available through the Project Impact program. Project B.2 The City will continue to provide "Substantial Improvement" � information to property owners in the floodplain (Appendix J). This information will be updated to reflect changes in regulations as necessary. � � Project B.3 The Planning Department will provide information providing a general overview of residential flood protection construction methods to the public in the Building division. Project B.4 The Planning and Development Services Administration will assist homeowners in obtaining flood mitigation grants through the Florida Department of Community Affairs. These grants are available on an annual basis and are given priority to repetitive loss properties. Project B.S The City will continue to utilize ttie flood complaint handling process to better address flood issues (Appendix K). C. Natural Resource Protection Natural resource protection activities preserve or restore natural areas or the natural functions of floodplain and watershed areas (Map 8). Project C.1 The City should continue to pursue the creation and enhancement � of wetlands in the Alligator Creek basin to provide compensation for future unavoidable City-incurred wetland impacts. The potential impacts would be from roadway improvements, drainage improvements and public utility expansions. � � � � Project C.2 The Kapok wetlands restoration feasibility should be pursued to restore historic conditions while incorporating existing conditions to reduce design and construction costs. The comprehensive restoration plan includes expansion of the banks, plantings, change of grade, and upland buffer preservation. Project C.3 The Moccasin Lake Habitat improvement's feasibility should be pursued and may include the removal of sediments, exotic vegetation and trash. 31 CRS: Floodplain Management Plan — 2000 City of Clearwater Project C.4 The Stevenson Creek Estuary Restoration should be pursued with the U.S. Army Corps of Engineers, currently underway, will recommend specific improvements. Recommendations should be evaluated and implemented based on the U.S. Army Corps of Engineers' study. Project C.S Stevenson Creek drainage basin — Improve the water quality by implementing a stormwater retrofit in the North Greenwood community. D. Emergency Services Emergency services are measures taken during a flood to minimize its impact. Project D.1 The Emergency Management office in conjunction with the appropriate City departments will continue to update as needed the Emergency Operation Plan which includes flooding disasters. E. Structural Projects Structural projects are capital improvement projects constructed for flood control The Capital Improvements Stormwater Management Committee (CISMC) comprised of City staff have a master list of improvements and has created a ranking system (Appendix L). The following CISMC projects in the floodplain will be overseen by the Public Works Administration (Map 8). Project E.1 Stevenson Creek drainage basin — Continue to develop a watershed management plan and implement appropriate proj ects. Project E.2 Alligator Creek drainage basin — Improve drainage north of Drew Street and west of McMullen Booth Road (Kapok) through floodplain restoration and stormwater drainage system enhancements. Project E.3 Clearwater Beach — Replace outfall pipes and retrofit outfalls with Tideflex valves to reduce backflow. F. Public Information Public information activities advise property owners and residents about the hazards of the floodplain. Project F.1 The City should utilize Channel 15 ar Clear-view TV, the City of Clearwater television station to provide flood mitigation and procedures information to the public. Project F.2 The City should explore placing flood mitigation information inserts in mailouts such as utility bills. Project F.3 Information mailings should be targeted to repetitive loss properties. 32 CRS: Floodplain Management Plan — 2000 City of Clearwater Project F.4 City staff should continue to work with neighborhoods experiencing flooding to provide flood mitigation and procedures information. Project F.S The Clearwater Library system and Building division should continue to make floodplain information available to the public. Project F. 6 The City should provide information if necessary to the various hurricane guides regarding flood safety information. Project F. 7 The City should provide information if necessary to the GTE to provide natural hazard information including flood procedures in the phonebook. Project F.8 The City should provide additional flood information on the City's website clearwater-fl.com. 33 N N � Q 'v � �i _ @ � � N � UQ � Q � v .�_ �.Z � � � � Q � y � �, � � o C N � N a � O c o � E E � a E m � � E � � r O �i m a a � � � � E E € �' c Z �c d � � ' d m v m U � ° � € o O J C � C � u. 'y t�%i fn a� U � 8 > $_ c� r � � u� � z z° O O O O O O � � �A, � � � � � � � L U N , � RS O = � � � L O � � � � � � � (� � ■— � U N O Q tJ� Cn � � � � � � � � W � � : � � � � � � � �� L�..' � � CRS: Floodplain Management Plan — 2000 City of Ciearwater 10. Implementation Schedule The implementation schedule includes a projected timetable and proposed funding source. Many of these proj ects can be easily absorbed in the operating budget and implemented by City staf£ Capital improvements have designated funding sources. Project A. Preventive 1. Participate in the Pinellas County Local Mitigation Strategy 2. Assist with Project Impact 3. Comp. Plan amendment — hospitals, etc. 4. Comp. Plan amendment - mobile homes 5. Kapok land acquisition analysis 6. Town Pond land acquisition 7. Support implementation of TBEP CCNP B. Property Protection l. Assist with Project Impact homeowner's mitigation grant program 2. Provide substantial improvement information 3. Provide floodproofing information 4. Assist homeowners in obtaining State flood mitigation grants 5. Maintain flood complaint handling process C. Natural Resource Protection 1. Pursue the feasibility of a mitigation bank in the Alligator Creek drainage basin 2. Pursue Kapok floodplain restoration analysis 3. Pursue Moccasin Lake Habitat improvement feasibility analysis 4. Pursue Stevenson Creek Estuary Restoration proj ect 5. North Greenwood stormwater project D. Emergency Services 1. Update the Emergency Operations Plan Timetable Annually Ongoing 2001 2001 Underway Underway Ongoing Fundin� O O O V V V Ongoing O Ongoing O Ongoing O Ongoing O Ongoing O 2001 V Underway V 2000 V 2001 V 2001 V Ongoing E. Structural Projects � l. Stevenson Creek Watershed Management Plan Underway 2. Kapok stormwater system improvements 2003 3. Clearwater Beach outfall retroiit 2001 � � �7 V SU � 35 CRS: Floodplain Management Plan — 2000 � City of Clearwater Project Timetable F. Public Information 1. Utilize Channel 15 to provide information Ongoing 2. Placement of inserts in mailouts Annually 3. Distribute information to repetitive loss properties Annually 4. Provide information to neighborhoods As Needed 5. Distribute updated information to Library Ongoing 6. Provide information to disaster guides As Needed 7. Coordinate information with GTE As Needed 8. Provide additional flood information on website Ongoing Budget O O O O O O O O O — Operating Budget SB — Stormwater Bonds SU — Stormwater Utility Fee V— Various funding sources including the Stormwater Utility Fee, grants, bonds, etc 11. Plan Monitoring and Evaluation The City of Clearwater's Planning Department will annually review and provide a report to the City Commission, FEMA and CRS program administrators regarding the implementation status of the CRS Floodplain Management Plan. The annual review will be based on input from City departments and citizens. The Capital Improvements Stormwater Management Committee will discuss the status of the plan a minimum of once annually. 36 � � i�...J � � � � � �.J � � � � � � � L__1 � CRS: Floodplain Management Plan — 2000 City of Clearwater Bibliography City of Clearwater Watershed Action Plan, December 1997, Post, Buckley, Schuh & Jernigan, Inc. City of Clearwater NFIP CRS Repetitive Loss Plan, December 1991, King Engineering Associates, Inc. Florida Municipal Record, Special Clearwater Convention Edition, October, 1958, Florida League of Municipalities Comprehensive Watershed Management Plan for the Alligator Creek Watershed, June 1997, Parsons Engineering Science, Inc. City of Clearwater Comprehensive Plan, May 2000, Planning Department City of Clearwater Evaluation and Appraisal Report, October 1997, Planning Department Pinellas County Local Mitigation Strategy, July 1999, Pinellas County Emergency Management Department Charting the Course — The Comprehensive Conservation and Management Plan for the Tampa Bay, December 1996, Tampa Bay National Estuary Program 37 f-a �_ � � � � � i � � i� �� A endix A pp Clearwater Benchmarks � � �� L�_.,� � � � � � � � � � � � � �� ,:;;`:� �;,; », -. ,..,�T ' -' : �uno� �e��aa�d �` a � � � � a��U vi R� � � o �mv � � � m d ti � d G > � '� �C�� =W(n0 l6 m(n�r m CJp� II � w � � � 7 O�fn � R a�� o �o= ar QU3cQ� � � �� c U � O � �•L ` Q �� r°n a � � � � l._� � � � � � � � LJ � � � � i I �_..� �J n� � � fh N aD .-- (7 O N f'� O �i l'� In GO m O a0 ('� V� 10 N O� In OD ln aD � � N CV l'� � 1� (O I� lA �t t0 (O f� � O1 aD ti O a0 r e- O O IlI �j .- Of M h O t0 N O 1� �(O <O (O �A � �� c0 M � aO � 1� O <O O 1 J M O �p � C c� ('7 p� � <O (O (V !O (V (V �p � � �� .' 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X 0 c E m A end ix B pp Flood Insurance Claim Dates and Rainfall Events � � Flood Insurance Claim Dates and Rainfall Events National Weather Service Station � Rainfall Date(s) # Claims St. Petersburg Tarpon Springs 05/04/78 2 2.00 in. 2.15 in. .OS/08/79...,.';`-_._._._.._......_ _ - ___ .... . .....:..:.,. , __.__......,.. .._..... . ... _......__..__ ._ :'::>::::<::2<<:«<> ::::>;:;:::7>>�><;:::: < . 5 i n.... ".. 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:::.;;::.;;:>;:.;;::.;;:;;>;:.;:.:.;:.;:;. :: <:::.::;::>::::::>:.>:::>:>::. 10/31/97 1 1.00 in. 0.20 in. � >::.;:.:;:.:.;:::.:.:�-�.;:;;::;>:.;;:.::.:.:.:.;>;:.;;;:.;:.;;::.;;;;;�.;::.;�.>:.:.:.:.:. � s>:::>:<::;:;:;>:>: : :.1 /2/99-1 /3/99:.;<:.;:.; . ....... . .:::.>;;>:6 ,. . ..... ........ ... . . � � � � � 1/2/99 n/a n/a 1/3/99 1.30 in. 122 in. ::::::::::::::.::::::;;;;:::: ; ;:.;::.;:.;:.;;::.::: ;: ,:: : ::.;::>:.>:;:::>:::::: :::: ; TOTAL 209 � I_ J , ! 1 1 �l 1 � � r � � � � r� � � � � A endix C pp F E MA Re petitive Loss Properties � FEMA Repetitive Loss Properties: 2000 � Address Dates of Repetitive Losses 1586 GULF BLVD 03/13/1993 09/06/1988 � 1480 GULF BLVD 10/07/1996 03/13/1993 � 1430 GULF BLVD 10/07/1996 06/04/1995 03/13/1993 08/31/1985 333 S GULFVIEW BLVD 03/13/1993 08/31/1985 � 421 S GULFVIEW BLVD 03/13/1993 08/31/1985 450 S GULFVIEW BLVD 10/08/1996 10/07/1996 10/04/1995 03/13/1993 08/31/1985 08/18/1982 � 11 HEILWOOD ST 09/08/1988 07/21/1987 08/31/1985 � 63 IRIS ST 03/13/1993 08/31/1985 59 KIPLING PLZ 10/07/1996 03/13/1993 08/31/1985 ! 66 KIPLING PLZ 10/07/1996 03/13/1993 � 751 LANTANA AVE 10/07/1996 03/13/1993 08/31 /1985 851 LANTANA AVE 03/13/1993 08/31 /1985 ' 853 LANTANA AVE 03/13/1993 08/31/1985 858 LANTANA AVE 03/13/1993 08/31 /1985 � 881 LANTANA AVE 03/13/1993 08/31/1985 � 919 LANTANA AVE 03/13/1993 09/01 /1985 877 LANTANA AVE 03/13/1993 09/08/1988 08/31 /1985 � 917 MANDALAY AVE 03/13/1993 08/31/1985 � 1136 ANDALAY POINT R 03/13/1993 08/31/1985 920 NARCISSUS AVE 10/07/1996 03/12/1993 08/31/1985 � 924 NARCISSUS AVE 10/07/1996 03/13/1993 08/31/1985 928 NARCISSUS AVE 10/07/1996 03/13/1993 �, 991 NARCISSUS AVE 10/07/1996 03/13/1993 08/31/1985 � 934 NARCISSUS AVE 03/13/1993 08/31/1985 699 OBERLIN DR 06/24/1997 09/08/1988 i 1370 PINEBROOK DR 11/23/1988 09/08/1988 ! � � FEMA Repetitive Loss Properties: 2000 � Address Dates of Repetitive Losses 909 BRUCE AVE 03/13/1993 08/31/1985 1 865 BRUCE AVE 10/08/1996 10/07/1996 03/13/1993 08/31/1985 � 861 BRUCE AVE 10/08/1996 03/13/1993 08/31/1985 855 BRUCE AVE 10/07/1996 03/13/1993 08/31/1985 � 852 BRUCE AVE 10/07/1996 03l13/1993 08/31 /1985 � 850 BRUCE AVE 03/13/1993 08/31/1985 755 BRUCE AVE 03/13/1993 08/31/1985 � 705 BRUCE AVE 01/02l1999 03/13/1993 1460 BYRAM DR 09/07/1988 07/02/1987 08/21 /1981 08/29/1979 05/08/1979 05/04/1978 � 624 CHESTNUT ST 10/31/1997 07/05/1997 07/12/1995 07/20/1987 � 430 CORONADO DR 10/07/1996 03/13/1993 11/22/1988 08/31/1985 730 ELDORADO AVE 08/31/1985 06/18/1982 � 1091 ELDORADO AVE 03/13/1993 08/31/1985 828 ELDORADO AVE 03/13/1993 08/31/1985 � 848 ELDORADO AVE 08/31/1985 06/18/1982 � 816 ELDORADO AVE 08/31/1985 06/18/1982 1465 EVERGREEN AVE 07/27/1995 11/22/1988 � 2950 GLEN OAK AVE 09/08/1988 09/24/1979 09/23/1979 05/08/1979 1855 GREENLEA DR 11/22/1988 09/09/1988 � 1370 GULF BLVD 10/07/1996 10/04/1995 03/13/1993 08/31/1985 02/28/1993 06/18/1982 02/08/1981 � 1380 GULF BLVD 10/04/1995 03/13/1993 1400 GULF BLVD 10/07/1996 10/04/1995 03/13/1993 08/31/1985 � 1451 GULF BLVD 10/07/1996 03/13/1993 � 1460 GULF BLVD 10/07/1996 10/04/1995 03/13/1993 10/31/1985 1451 GULF BLVD, #101 10/07/1996 03/13/1993 � 1451 GULF BLVD, #102 10/07/1996 03/13/1993 � � FEMA Repetitive Loss Properties: 2000 � Address Dates of Repetitive Losses 58 ASTER ST 10/07/1996 03/13/1993 � 56 AUREL ST 10/08/1996 03/13/1993 08/31/1985 � 1414 BARRY ST 11 /22/1988 09/08/1988 1424 BARRY ST 09/08/1988 07/20/1987 � 1418 BARRY ST 09/08/1988 07/20/1987 � 1003 BAY ESPLANADE 10/07/1996 03/13/1993 08/31/1985 06/18/1982 1010 BAY ESPLANADE 01/03/1999 10/07/1996 03/13/1993 08/31/1985 � 1018 BAY ESPLANADE 01/02/1999 10/07/1996 03/13/1993 1021 BAY ESPLANADE 03/13/1993 08/31/1985 � 1039 BAY ESPLANADE 03/13/1993 08/31/1985 06/18/1982 � 701 BAY ESPLANADE 10/07/1996 03/13/1993 730 BAY ESPLANADE 03/13/1993 08/31/1985 � 915 BAY ESPLANADE 10/08/1996 03/13/1993 08/31 /1985 767 BAY ESPLANADE 03/13/1993 09/01/1985 � 994 BAY ESPLANADE 01/02/1999 10/07/1996 03/13/1993 � 981 BAY ESPLANADE 03/13/1993 08/31/1985 705 BAY ESPLANADE 03/13/1993 12/31/1986 08/31/1985 06/18/1982 � 673 BAY ESPLANADE 03/13/1993 09/01/1985 1012 BRUCE AVE 01/03/1999 10/07/1996 03/13/1993 � 1004 BRUCE AVE 01/03/1999 10/07/1996 � 844 BRUCE AVE 10/07/1996 03/13/1993 840 BRUCE AVE 03/13/1993 08/31/1985 � 974 BRUCE AVE 03/13/1993 08/31/1985 . � 965 BRUCE AVE 03/13/1993 08/31/1985 945 BRUCE AVE 03/13/1993 08/31/1985 � 929 BRUCE AVE 03/12/1993 08/31 /1985 � � FEMA Repetitive Loss Properties: 2000 � Address Dates of Repetitive Losses 402 N. RAILROAD AVE 07/26/1985 08/10/1982 05/04/1978 � 600 S BETTY LN 11 /22/1988 09/08/1988 07/20/1987 09/11 /1993 � 606 S BETTY LN 11/23/1988 09/08/1988 606 BETTY LN, #A1+B4 11/23/1988 09/08/1988 � 1850 ENETIAN POINT D 03/13/1993 09/28/1984 � 315 WINDWARD ISL 03/13/1993 09/01/1985 � � � � � � � � � � � � � � � � t � � � � � � .� � � � L� C� � A end ix D I� p Flood Prevention Ordinance � � � � � � � � � � � Chapter 51 FLOOD DAMAGE PREVENTION"` Article I. In General Sec. 51.01. Findings of fact. Sec. 51.02. Purpose of chapter. Sec. 51.03. Definitions. Sec. 51.04. Interpretation of chapter. Sec. 51.05. Warning and disclaimer of liability. Sec. 51.06. Penalties �or violation of chapter. Sec. 51.07. Landa to which this chapter applies. Sec. 51.08. Adoption of maps and study. Sec. 51.09. Development permit required. Sec. 51.10. Administration, permit procedures, duties of building offcial. Sec. 51.11. Variances from chapter. Article II. Flood Hazard Reduction 3ec. 51.31. General standards. Sec. 51.32. Spec�c atandards. Sec. 51.33. Streame without established base flood elevations or floodways. Sec. 51.34. Subdivieion proposals. 3ec. 51.35. Areas of ahallow flooding (AO zones). 'Croee references—Special assessmenta for storm system improvements, § 27.11; stormwater management, ch. 32, art. VI; �; zoning, ch. 40; subdivision and condominium platting, ch. 46; buildings and building regulations, ch. 47; minimum floor elevation for buildings constructed after February 3, 1975, § 47.011; restoration of electrical service to flooded structures, § 47.012; listing of franchiecs, app. B. � � CD51:1 � � �' � � � � � � � � � �' FLOOD DAMAGE PREVENTION § 51.03 AR.TICLE I. IN GENER.AL (5) Prevent or regulate the construction of flood barriers which may unnaturally divert Sec. 51.01. Findings of fact.. floodwaters or which may increase flood hazards to other lands. The city commission finds and declares that: (Code 1980, § 146.003) (1) The flood hazard azeas of the city are sub- ject to periodic inundation which results in loss of life and property, health and safety hazards, disruption of commerce and gov- ernmental services, extraordinary public ex- penditures for flood protection and relief, and impairment of the tax base, all of which adversely affect the public health, safety and general welfare; and (2) These flood losses aze caused by the cumu- lative effect of obstructions in floodplains causing increases in flood heights and ve- locities, and by the occupancy in flood hazard areas by uses vulnerable to floods or hazardous to other lands which are in- adequately elevated, floodproofed, or other- wise unprotected from flood damages. (Code 1980, § 146.002) Sec. 51.02. Purpose of chapter. It is the purpose of this chapter to promote the public health, safety and general welfare and to minimize public and private losses due to flood conditions in specific areas by provisions designed to: (1) R.estrict or prohibit uses which are dan- gerous to health, safety and property due to water or erosion hazards, or which result in damaging increases in erosion or in flood heights or velocities; (2) Require that uses vulnerable to floods, in- cluding facilities which serve such uses, be protected against flood damage at the time of initial construction; (3) Control the alteration of natural flood- plains, stream channels and natural protec- tive barriers which are involved in the ac- commodation of floodwaters; (4) Control filling, grading, dredging and other development which may increase erosion or flood damage; and Sec. 51.03. Definitions. The following words, terms and phrases, when used in this chapter, shall have the meanings as- cribed to them in this section, except where the context clearly indicates a different meaning: Addition (to an existing building) means any walled and roofed expansion to the perimeter of a building in which the addition is connected by a common loadbearing wall other than a firewall. Any walled and roofed addition which is connected by a�rewall or is separated by independent pe- rimeter loadbearing walls is new construction. Appe¢l means a request for a review of the building official's interpretation of any provision of this chapter or a request for a variance. Area of shallow flooding means a designated AO or VO zone on the flood insurance rate map (FIRM) with base flood depths from one to three feet where a clearly deiined channel does not exist, where the path of flooding is unpredictable and indeterminate, and where velocity flow may be evident. Area o f speci¢l f lood hazard means the land in the floodplain within the city subject to a one per- cent or greater chance of flooding in any given year. The area may be designated on the FHBM as zone A. After detailed ratemaking has been completed in preparation for publication of the FIRM, zone A is usually refined into zones A, AO, A1-99, VO and V1-30. Base flood means the flood having a one percent chance of being equaled or exceeded in any given year. Base flood eleuation and BFE mean the eleva- tion above mean sea level, as shown on the FIRM and FHBM. B�sement means that portion of a building having its floor subgrade, i.e., below ground level, on all sides. CD51:3 § 51.03 CLEARWATER CODE Breakaway wall means a wall that is not part of the structural support of the building and is in- tended through its design and construction to col- lapse under specific lateral loading forces without causing damage to the elevated portion of the building or the supporting foundation system. Building means any structure built for suppori, shelter or enclosure for any occupancy or storage. Building official means the building official of the city within the meaning of the building code adopted for enforcement within the city. City engineer means the city engineer of the city. Coastal high lza,zard area means the area sub- ject to high velocity waters, including but not lim- ited to hurricane wave wash. The area may be designated on a FIRM as zone V1-30, VE or V. Development means any manmade change to im- proved or unimproved real property, including but not limited to buildings or other structures, mining, dredging, �lling, grading, paving, exca- vating, drilling or permanent storage of mate- rials. Elevated building means a nonbasement building built to have the lowest floor elevated above the ground level by means of fill, solid foun- dation, perimeter walls, pilings, columns, posts, piers, shear walls or breakaway walls. Elevation means elevation in relation to mean sea level. Existing manufactured home p¢rk or subdivi- sion means a manufactured home park or subdi- vision for which the construction of facilities for servicing the lots on which the manufactured homes are to be aff`ixed, including at a minimum the installation of utilities, the construction of streets, and either final site grading or the pouring of concrete pads, was completed before December 31, 1974. Expansion to an existing mdnufactured home park or subdiaision means the preparation of ad- ditional sites by the construction of facilities for servicing the lots on which the manufactured homes are to be affixed, including the installation of utilities, the construction of streets, and either final site grading or the pouring of concrete pads. Flood and flooding mean a general and tempo- rary condition of partial or complete inundation of normally dry land areas from the overflow of inland or tidal waters or from the unusual and rapid accumulation or runoff of surface waters from any source. Flood hazard boundary map and FHBM mean an official map of the city, issued by the Federal Emergency Management Agency, where the boundaries of the areas of special flood hazard have been de�ned as zone A. Flood insurance rate map and FIRM mean an o�cial map of the city on which the Federal Emer- gency Management Agency has delineated both the areas of special flood hazard and the appli- cable risk premium zones. Flood insurance study means the of�cial report provided by the Federal Emergency Management Agency which contains profiles, the flood boundary floodway map and the water surface elevation of the base flood. Floodway means the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without increasing the water surface elevation. Floor means the top surface of an enclosed area in a building (including basement), e.g., top of slab in concrete slab construction or top of wood flooring in wood frame construction. The term does not include the floor of a garage used solely for parking vehicles. Functionally dependent facility means a facility which cannot be used for its intended purpose un- less it is located or carried out in close proximity to water, such as but not limited to a boat docking or port facility, or shipbuilding, ship repair or sea- food processing facilities. The term does not in- clude longterm storage, manufacture, sales or ser- vice facilities. H¢bitable f Zoor means any floor usable for living purposes, including working, eating, sleeping, cooking or recreation, or a combination thereof, such as but not limited to bedrooms, living rooms, laundry rooms, bathrooms, workshops, dens and CD51:4 � � � � � � �� FLOOD DAMAGE PREVENTION studies. The term does not include a floor used only for storage or vehicle parking purposes. Highest adjacent grade means the highest nat- ural elevation of the ground surface, prior to con- struction, ne� to the proposed walls of a struc- ture. Lowest f Zoor means the lowest floor of the lowest enclosed area (including a basement). An unfin- ished or flood resistant enclosure, usable solely for parking of vehicles, building access or storage in an azea other than a basement area is not con- sidered a building's lowest floor, provided that such enclosure is not built so as to render the structure in violation of the applicable noneleva- tion design requirements. Mangrove stand means an assemblage of man- grove trees which is mostly low trees noted for a copious development of interlacing adventitious roots above the ground and which contain one or more of the following species: black mangrove (Avi- cennia nitida); red mangrove (Rhizophora man- gle); white mangrove (Languncularia racemosa); and buttonwood (Conocarpus erecta). Manufactured home means a structure, trans- portable in one or more sections, which is built on a permanent chassis and designed to be used with or without a permanent foundation when con- nected to the required utilities. The term "man- ufactured home" does not include a recreational vehicle. Manufactured home park or subdivision means a parcel or contiguous parcels of land divided into two or more lots for rent or sale as manufactured home sites. Market value of the structure means the ap- praised value of the structure, not including land, driveways, sidewalks, landscaping, swimming pools and other similar improvements not related to the basic structure, prior to the start of repair or improvement or, in the case of damage, prior to the damage occurring. Mean sea leuel means the average height of the sea for all stages of the tide. It is used as reference for establishing various elevations within the floodplains. For purposes of this chapter, the term § 51.03 is synonymous with National Geodetic Vertical Datum (NGVD). National Geodetic Vertical Datum and NGVD, as corrected in 1929, mean a vertical control used as a reference for establishing varying elevations within the floodplain.. New construction means structures for which the start of construction commenced on or after December 31, 1974. New manufactured home park or subdiuision means a manufactured home park or subdivision for which the construction of facilities for ser- vicing the lots on which the manufactured homes are to be affixed, including at a minimum the installation of utilities, the site grading or the pouring of concrete pads, is completed on or after December 31, 1974. Nonconforming structure means a structure in any area of special flood hazard within the city which is not elevated or floodproofed to National Flood Insurance Program standards, as set forth in 44 CFR 59 and 60. Ready for highway use, as applied to a recre- ational vehicle, means that the recreational ve- hicle is on its wheels or jacking system, is at- tached to the site only by quick disconnect type of utilities and security devices, and has no perma- nently attached additions. Recreational uehicle means a vehicle which is built on a single chassis, 400 square feet or less when measured at the largest horizontal projec- tion, designed to be self-propelled or permanently towable by a light duty truck, and designed pri- marily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel or seasonal use. Sand dunes means naturally occurring accumu- lations of sand in ridges or mounds landward of the high-water line on the beach. Start of constructio�a, for other than new con- struction or substantial improvements under the Coastal Barrier Resources Act (P. L. 97-348), means substantial improvement, and means the date the building permit was issued, provided the actual start of construction, repair, reconstruc- tion or improvement was within 180 days of the CD51:5 § 61.03 CLEARWATER CODE permit date. The actual start of construction means the iirst placement of permanent construction of a structure on a site, such as the pouring of slabs or footings, installation of piles, construction of col- umns, or any work beyond the stage of excavation or the placement of a manufactured home on a foundation. Permanent construction does not in- clude land preparation, such as clearing, grading and filling; installation of streets or walkways; excavation for a basement, footings, piers or foun- dations or the erection of temporary forms; or the installation on the property of accessory build- ings, such as garages or sheds not occupied as dwelling units or not part of the main structure. Structure means a walled and roofed building that is principally above ground, a manufactured home, a gas or liquid storage tank, or other man- made facility or infrastructure. Substantial damage means damage of any or- igin sustained by a structure whereby the cost of restoring the structure to its before damaged con- dition would equal or ea�ceed 50 percent of .the market value of the structure before the damage occurred. Substantial improvement means: (1) With respect to any property located on Clearwater Beach or Sand Key, any repair, reconstruction, rehabilitation, addition or other improvement of a structure during a iive-year period, the cumulative cost of which equals or exceeds 50 percent of the mazket value of the structure before the start of construction of the improvement; or (2) With respect to any property located in an area of special flood hazard other than on Clearwater Beach or Sand Key, reconstruc- tion, rehabilitation, addition or other im- provement of a structure during a one-year period, the cost of which equals or exceeds 50 percent of the market value of the struc- ture before the start of construction of the improvernent. For the purposes of this definition, construction is considered to have started when the first al- teration of any wall, ceiling, floor or other struc- tural part of the building commences, whether or not that alteration affects the external di- mensions of the structure. The term includes structures which have incurred substantial damage, regardless of the actual repair work performed. The term does not, however, include any project for improvement of a structure to correct e�usting violations of health, sanitary or safety code specifications which have been iden- tified by the building official and which are the minimum necess�ry to ensure safe living con- ditions. The term does not include any alter- ation of a structure listed on the National Reg- ister of Historic Places or the state inventory of historic places, provided that the alteration will not preclude the structure's continued designa- tion as a historic structure on such National Register or state inventory. Variance means a grant of relief from the re- quirements of this chapter which permits construc- tion in a manner otherwise prohibited by this chapter where speci�c enforcement would result in unnecessary and exceptional hardship. (Code 1980, § 146.004; Ord. No. 5124, § 1, 9-5-91; Ord. No. 5265, § 1, 9-17-92) Croas references—Definitions, § 35.11; rules of construc- tion, § 35.12. Sec. 51.04. Interpretation of chapter. In the interpretation and application of this chapter all provisions shall be considered as min- imum requirements and deemed neither to limit nor repeal any other powers granted under state laws. (Code 1980, § 146.11) Sec. 51.05. Warning and disclaimer of lia- bility. The degree of flood protection required by this chapter is considered reasonable for regulatory purposes and is based upon scientific and engi- neering considerations. Larger floods can and will occur on rare occasions. Flood heights may be in- creased by manmade or natural causes. This chapter does not imply that land outside the areas of special flood hazard or uses permitted within such areas will be free from flooding or flood dam- ages. This chapter shall not be deemed to create liability on the part of the city or any officer or employee thereof for any flood damages that may CD51:6 � � FLOOD DAMAGE PREVENTION § 51.10 � result notwithstanding reliance on this chapter or Sec. 51.10. Administration, permit proce- any administrative decision made thereunder. dures, duties of building offcial. (Code 1980, § 146.12) (1) Designationofbuildingofficial. Thebuilding official is hereby appointed to administer and im- � Sec. 51.06. Penalties for violation of chapter. plement the provisions of this chapter. A failure to comply with the provisions of this chapter or any of its requirements, including con- ditions and safeguards established in connection with grants of variances, shall constitute a viola- tion. Any person who violates this chapter or fails to comply with any of its requirements shall, upon a finding of such violation, be fined not more than $500.00. Each day a violation continues shall be considered a separate offense. Nothing contained in this section shall prevent the city from taking such other lawful action as is necessary to pre- vent or remedy any violation. (Code 1980, § 146.13) � Sec. 51.07. Lands to which tlus chapter ap- plies. � This chapter shall apply to all areas of special flood hazard within the city. (Code 1980, § 146.005) Sec. 51.08. Adoption of maps and study. Federal Emergency Management Agency maps � entitled "Flood Insurance Rate Map and Floodway," dated June 1, 1983, and the accompa- nying study entitled "Flood Insurance Study— Clearwater," dated December 1, 1983, shall be � used to provide the database for this chapter. (Code 1980, § 146.001) � Sec. 51.09. Development permit required. � (1) A development permit shall be required in conformance with the provisions of this chapter prior to the commencement of any development activities. � (2) No structure or land shall be located, ex- tended, converted or structurally altered without � full compliance with the terms of this chapter and other applicable regulations. (Code 1980, § 146.006) � � (2) Permit procedures. An application for a de- velopment permit shall be made to the building official on forms furnished by him prior to any development activities, and shall include but not be limited to plans drawn to scale showing the nature, location, dimensions and elevations of the property; existing or proposed structures; fill; storage of materials; drainage facilities; and the location of the foregoing. Specifically, the following information is required: CD51:7 (a) Applic¢tion stage. 1. Elevation of the proposed lowest floor, including basement, of all structures. 2. Elevation to which any nonresidential structure will be floodproofed. 3. Certificate from a state registered pro- fessional engineer or architect that the nonresidential floodproofed structure will meet the floodproofing criteria in section 51.32(2). 4. Description of the extent to which any watercourse will be altered or relocated as a result of proposed development. 5. For all additions to or alterations of any structure, an appraisal of the market value of the structure from an MAI (Member, Appraisal Institute) or SRPA (Senior Real Estate Appraiser) designated appraiser may be provided, along with information showing all costs involved in tlie proposed work, in- cluding but not limited to materials and labor. If an appraisal is not provided, then the appraisal of the value of the structure as determined by the county property appraiser will be used. 6. For all additions to or alterations of any nonconforming structure, informa- tion showing all of the costs of the pro- posed work shall be provided to the building ofCicial. 7. Elevation certificate of the property showing lowest floor and grade eleva- § 51.10 CLEARWATER CODE tions duly certified by a state regis- tered land surveyor. (b) Construction stage. Provide a floor eleva- tion or floodprooiing certification after the lowest floor is completed, or, in instances where the structure is subject to the regu- lations applicable to coastal high hazard areas, after placement of the horizontal structural members of the lowest floor. Upon placement of the lowest floor or flood- proofing by whatever construction means, or upon placement of the horizontal struc- tural members of the lowest floor, which- ever is applicable, it shall be the duty of the permit holder to submit to the building of- ficial a certificate of the elevation of the lowest floor, floodproofed elevation, or the elevation of the lowest portion of the hori- zontal structural members of the lowest floor, whichever is applicable, as built, in relation to mean sea level. The certi�ca- tion shall be prepared by or under the su- pervision of a state register-ed land sur- veyor or, when floodproofing is utilized for a particular building, the certification shall be prepared by or under the supervision of a state registered professional engineer or architect, and shall be certified and sealed. Any work undertaken prior to submission of the certification shall be at the permit holder's risk. The building official shall re- view the floor elevation survey data sub- mitted. Deficiencies detected by such re- view shall be corrected by the permit holder immediately and prior to further progres- sive work being permitted to proceed. Failure to submit the certification or failure to make the corrections required hereby shall be cause to issue a stop work order for the project. (3) Duties of the building officiczl. The duties of the building official shall include but not be lim- ited to: (a) Reviewing all development permit applica- tions to ensure that the permit require- ments of this chapter have been satis�ed; (b) Advising applicants that additional federal or state permits may be required and, if CD51:8 speci�c federal or state permit requirements are known, requiring that copies of such permits are provided and maintained on file with the development permit; (c) Notifying adjacent communities and the state assistance office for the National Flood Insurance Program prior to any alteration or relocation of a watercourse, and submit- ting evidence of such notification to the Fed- eral Emergency Management Agency; (d) Ensuring that maintenance is provided within the altered or relocated portion of a watercourse so that the flood-carrying ca- pacity is not diminished; (e) Obtaining a certification of the actual ele- vation of the lowest floor, including the basement, of all new or substantially im- proved structures, when certification is re- quired; (fl Obtaining a certification of the actual ele- vation to which the new or substantially improved structures have been floodproofed, when certi�cation is required; (g) For coastal high hazard areas, obtaining a certification from a state registered profes- sional engineer or architect that the struc- ture is designed to be securely anchored to adequately anchored pilings or columns in order to withstand velocity waters and hur- ricane wave wash; (h) For coastal high hazard areas, reviewing plans for adequacy of breakaway walls in accordance with section 51.32(5); (i) When floodproofing is utilized for a partic- ular structure, obtaining a certification from a state registered professional engi- neer or architect, when certification is re- quired; (j) Making any interpretations which may be needed as to the exact location of bound- aries of the areas.of special flood hazard, for example, where there appears to be a conflict between a mapped boundary and actual field conditions; (k) Obtaining, reviewing and reasonably uti- lizing any base flood elevation and floodway � � � � � � � � � � � � � FLOOD DAMAGE PREVENTION § 51.11 data available from a federal, state or other (b) The danger to life and property due to source whenever base flood elevation data flooding or erosion damage; or floodway data have not been provided as �c) The susceptibility of the proposed facility required; and its contents to flood damage and the (1) Maintaining all records pertaining to the effect of such damage on the owner; administration of the provisions of this �d) The importance of the services provided by chapter; the proposed facility to the community; (m) Promulgating administrative policies and procedures for determining eligible and in- eligible costs for construction or renovation of a structure in the floodplain, consistent with this chapter and applicable state and federal law. Such administrative policies and procedures shall be issued before Feb- ruary 1, 1990, and may be amended from time to time thereafter as circumstances require. Copies thereof shall be provided without cost to all applicants for building permits in any area of special flood hazard within the city. A current copy shall be con- spicuously posted in a public azea of the building ofiicial's office and a current copy shall also be filed in the office of the city clerk. (Code 1980, § 146.007) Sec. b1.11. Variances from chapter. (1) The building/flood board of adjustment and appeals shall hear and decide appeals from deci- sions of the building of�cial pursuant to this chapter and requests for variances from the re- quirements of this chapter. A decision of the board shall be final, subject to judicial review by common law certiorazi in circuit court. (2) Variances may be granted for the reconstruc- tion, rehabilitation or restoration of structures listed on the National Register of Historic Places or the state inventory of historic places, if the proposed reconstruction, rehabilitation or restora- tion will not result in the structure losing its his- torical designation. (3) In passing upon such applications, the board shall consider all technical evaluations, all rele- vant factors, all standards specified in other sec- tions of this chapter; and: (a) The danger that materials may be swept onto other lands to the injury of others; CD51:9 (e) The necessity of the facility to a waterfront location, in the case of a functionally de- pendent facility; (fl The availability of alternative locations not subject to flooding or erosion damage for the proposed use; (g) The compatibility of the proposed use with existing and anticipated development; - (h) The relationship of the proposed use to the . comprehensive plan and floodplain manage- ment program for that area; (i) The safety of access to the property in times of flood for emergency and nonemergency vehicles; (j) The expected heights, velocity, duration, rate of rise and sediment transport of the floodwaters and the effects of wave action, if applicable, expected at the site; and (k) The costs of providing governmental ser- vices during and after flood conditions, in- cluding maintenance and repair of public utilities and facilities such as sewer, gas, electrical and water systems, and streets and bridges. (4) Conditions for variances: (a) Variances shall only be issued upon a de- termination that the variance is the min- imum necessary, considering the flood hazard, to afford relief; and, in the instance of a historical building, upon a determina- tion that the variance is the minimum nec- essary so.as not to destroy the historic char- acter and design of the building. (b) Variances shall only be issued upon a showing of good and sufficient cause, a de- termination that failure to grant the vari- ance would result in unnecessary and ex- § 61.11 CLEARWATER CODE ceptional hardship, and a determination that the granting of a variance will not re- sult in increased flood heights, additional threats to public safety, extraordinary public expense, the creation of a nuisance or a conflict with existing local laws or or- dinances. (c) Variances shall not be issued within any designated floodway if any increase in flood levels during the base flood discharge would result. (5) Upon consideration of the factors listed above, and the purposes of this chapter, the board may attach such conditions to the granting of vari- ances as it deems necessary to further the pur- poses of this chapter. (6) Any applicant to whom a variance is granted shall be given written notice specifying the differ- ence between the base flood elevation and the el- evation to which the structure is to be built and stating that the cost of flood insurance will be commensurate with the increased risk resulting from the reduced lowest floor elevation. (7) The building official shall maintain the records of all appeal actions and shall report any variances to the Federal Emergency Management Agency upon request. (Code 1980, § 146.10) Crose reference—Variances from land development code generally, ch. 45. ARTICLE II. FLOOD H�7.A►1�,D REDUCTION* Sec. 51.31. General standards. In all areas of special flood hazard, the fol- lowing standards are required, and compliance with those standards relating to structural sta- bility shall be certified by an engineer or archi- tect registered in this state: (1) New construction and substantial improve- ments shall be anchored to prevent flota- •Crosa referencea—Water generally, § 32.091 et seq.; wastewater collection, § 32.181 et seq.; buildings and building regulations generally, ch. 47; floodproofing certification for the coastal construction zones, § 47.010. tion, collapse or lateral movement of the structure. (2) Manufactured homes shall be anchored to prevent flotation, collapse or lateral move- ment. Methods of anchoring may include but are not limited to use of over-the-top or frame ties to ground anchors. This stan- dard shall be in addition to and consistent with applicable state requirements for re- sisting wind forces. (3) New construction and substantial improve- ments shall be constructed with materials and utility equipment resistant to flood damage. (4) New construction and substantial improve- ments shall be constructed by methods and practices that minimize flood damage. (5) Electrical, heating, ventilation, plumbing, air conditioning equipment, and other ser- vice facilities shall be located at or above the base flood elevation or shall be designed or located so as to prevent water from en- tering or accumulating within the compo- nents during conditions of flooding. (6) New and replacement water supply sys- tems shall be designed to minimize or elim- inate the infiltration of floodwaters into the system. (7) New and replacement sanitary sewage sys- tems shall be designed to minimize or elim- inate the in�ltration of floodwaters into the systems and discharges from the systems into floodwaters. (8) Onsite waste disposal systems shall be lo- cated and constructed to avoid impairment to them or contamination from them during flooding. (9) Any alteration, repair, reconstruction or im- provements to a structure which is in com- pliance with the provisions of this chapter shall meet the requirements of new con- struction as contained in this chapter. (Code 1980, § 146.008(a)) CD51:10 � � � FLOOD DAMAGE PREVENTION Sec. 51.32. Specific standards. In all areas of special flood hazard, the fol- lowing standards are required: (1) Residential construction (A zone). New con- struction or substantial improvement of any residential structure shall have the lowest floor, including the basement, elevated at or above the base flood elevation. Should solid foundation perimeter walls be used to � elevate a structure, openings suffcient to facilitate the unimpeded movement of flood- waters shall be provided in accordance with � the standards set forth in subsection (3) of this section. �.7 � � � � � � (2) Nonresidenti¢l construction (A zone). New construction or substantial improvement of any commercial, industrial or nonresiden- tial structure shall have the lowest floor, including the basement, elevated at or above the level of the base flood elevation. Structures located in all A zones may be floodproofed in lieu of being elevated, pro- vided that all areas of the structure below the required elevation are watertight,with walls substantially impermeable to the pas- sage of water and use structural compo- nents having the capability of resisting hy- drostatic and hydrodynamic loads and the effects of buoyance. A state registered pro- fessional engineer or architect shall certify that the standards of this subsection are satisfied. (3) Eleuated buildings (A zone). New construc- tion or substantial improvements of ele- vated buiidings that include fully enclosed areas formed by the foundation and other exterior walls below the base flood eleva- tion shall be designed to preclude finished living space and designed to allow for the entry and exit of floodwaters to automati- cally equalize hydrostatic flood forces on ex- terior walls. (a) Designs for complying with this re- quirement shall either be certified by a � Supp. No. 6 � CD51:i1 § 51.32 state registered professional engineer or architect or meet the following min- imum criteria: 1. Provide a minimum of two open- ings having a total net area of not less than one square inch for every square foot of enclosed area sub- ject to flooding; 2. The bottom of all openings shall be no higher than one foot above grade; and 3. Openings may be equipped with screens, louvers, valves or other coverings or devices provided they permit the automatic flow of flood- waters in both directions. (b) Electrical, plumbing and other utility connections are prohibited below the base flood elevation except as may be required by other codes, or where there is a more practical location consistent wit� the intent of another code, and approved by the building official. (c) Access to the enclosed area shall be the minimum necessary to allow for parking of vehicles (garage door), lim- ited storage of maintenance equipment used in connection with the premises (standard exterior door), and entry to the living area (stairway or elevator). (d) The interior portion of such enclosed area shail not be partitioned or fin- ished into separate rooms. (4) Manuf¢ctured homes ¢nd RV requirements. (a) New and existing manufactured home parks and subdivisions, new and ex- isting manufactured homes not located within a new or existing manufactured home park and subdivision, and recre- ational vehicles that are located or placed or substantially improved in ei- ther areas of special flood hazard or in coastal high hazard areas as de�ned in this chapter shall conform to all re- quirements of 44 CFR 59 and 60, effec- tive November i, 1989, and for the pur- pose of this chapter such deiinitions and requirements as are contained therein § 51.32 CLEARWATER CODE are adopted in this seetion by reference unless speci�cally set forth in this sec- tion. (b) No floodplain management regulations will apply to a recreational vehicle if the recreational vehicle was onsite for fewer than 180 consecutive days or was fully licensed as a motor vehicle and ready for i�ighway use. (5) Floodways. Located within areas of special flood hazard are areas designated as flood- ways. Because the floodway is an e�rtremely hazardous area due to the velocity of flood- waters and erosion potential, the following standards shall apply in any floodway: (a) Encroachments, including fill, new con- struction, substantial improvements and other developments, are prohib- ited unless certification, with sup- porting technicai data, by a state reg- istered professional engineer is provided demonstrating that the en- croachments shall not result in any in- crease in flood levels during the occur- rence of the base flood discharge.� (b) All new construction and substantial improvements shall comply with all ap- plicabie #lood hazard reduction provi- sions of this section. (c) The placement of manufactured homes is prohibited except in an existing man- ufactured home park or subdivision; however, a replacement manufactured home may be placed on a lot in an ex- isting manufactured home park or sub- division provided the anchoring stan- dards and the elevation standards set forth in this section are met. (6) Coastal higlz h,azard areas (V zones). Lo- cated within the areas of special flood hazard are areas designated as coastal high hazard areas. Because these areas have spe- cial flood hazards associated with wave wash, the following standards are required: (a) All buildings or structures shall be lo- cated landward of the coastal construc- tion control line. Supp. iVo. 6 G'1D51:12 (b) All builclings or structures shall be el- evated so that the bottom of the lowest supporting horizontal member, ex- cluding pilings or columns, is located at or above the base flood elevation level, with all space below the lowest supporting member open so as not to iinpede the flow of water. Breakaway walls may be permitted i£ designed to wash away in the event of abnormally high tides or wave action and in accor- dance with subsection (6)(h) of this sec- tion. (c) All buildings or structures shali be se- curely anchored on pilings or columns. (d) All pilings and coiumns and the at- tached structures shall be anchored to resist flotation, collapse and lateral movement due to the effect of wind and water loads acting simultaneously on all buiiding components. The anchoring and support system shall be designed with wind and water loading values which equal or exceed the 100-year mean recurrence interval or one per- cent annual chance flood. (e) A state registered professional engi- neer or architect shall certify that the design, specifications and plans for con- struction are in compliance with the provisions of subsections (6)(�), (c) and (d) of this section. (� There shall be no fill used as struc- tural support. Noncompacted �11 may be used around the perimeter of a building for landscaping or aesthetic purposes provided the fill wiil wash out from storm surge, thereby rendering the building free of obstruction, prior to generating excessive loading forces, ramping effects or wave deflection. The building of�cial shall approve design plans for landscaping/aesthetic �il only after the applicant has provided an analysis by an engineer, architect or � � FLOOD DAMA�E PREVENTION soil scientist which demonstrates that the following factors have been fully considered: 1. Particle composition of fill mate- rial does not have a tendency for excessive natural compaction. 2. Volume and distribution of fill will not cause wave deflection to adja- cent properties. 3. Slope of fill will not cause wave runup or ramping. (g) There shall be no alteration of sand dunes or mangrove stands which would increase potential flood damage. (h3 Nonsupporting breakaway walls, open latticework or mesh screening shall be allowed below the base flood elevation �rovided they are not part of the struc- tural support of the building and are designed so as to break away, under abnormally high tides or wave action, without damage to the structural in- tegrity of the building on which they are to be used and provided the fol- lowing design specifications are met: 1. Design safe loading resistance of � each wall shall be not less �than ten nor more than 20 pounds per square foot; or 2. If more than 20 pounds per square � foot, a state registered professional engineer or architect shall certify that the design wall collapse would � result from a water load less than that which would occur during the base flood event, and the elevated portion of the building and sup- � porting foundation system shall not be subject to collapse, displace- ment or other structural damage due to the effects of wind and water loads acting simultaneously on all building components during the � base flood event. Maximum wind and water loading values to be used in this determination shall each have a one percent chance of � being equalled or exceeded in any given year or 100-year mean recur- rence interval. § 51.33 (i) If breakaway walls are utilized, such enclosed space shall not be designed to be usable for human habitation but shall be designed to be usable only for parking of vehicles, building access or limited storage of maintenance equip- ment used in connection with the prem- ises. (j) Prior to construction, plans for any structures that wi�l have breakaway walls shall be submitted to the building ofiicial for approval. (k) Any alteration, repair, reconstruction or improvement to a structure shall not enclose the space beiow the lowest floor except with breakaway walls. (1) The placement of manufactured homes is prohibited except in an existing man- ufactured home park or subdivision; however, a replacement manufactured home may be placed on a lot in an ex- isting manufactured home park or sub- division provided the anchoring stan- dards and the elevation standards set forth in this section are met. (Code 1980, § 146.008(b3; Ord. No. 5558-94, § 1, 5-5-94) Sec. 51.33. Streams without established base flood elevations or floodways. Within the areas of special flood hazard where small streams exist but where no base flood data have been provided or where no floodways have been provided, the following standards apply: (1) No encroachments, including �11 material or structures, shall be located less than 20 feet from the top of the stream bank unless certification by a state registered profes- sional engineer is provided demonstrating that such encroachments shall not result in any increase in flood levels during the oc- currence of the base flood discharge. (2) New consiruction or substantial improve- ments of structures shall be elevated or fioodproofed to elevations established by the building official utilizing data available from a federal, state or other source. (Code 1980, § 146.008(c)) � Supp. �vo. s CD51:13 � § 51.34 CLEAR,WATER CODE Sec. 5i.34. Subdivision proposals. AIl proposed subdivisions, including but not lim- ited to manufactured home parks and subdivi- sions and other proposed developments consisting of at least 50 lots or five acres, or both, shall be reviewed by the city engineer to determine that the following requirements have been or will be satisfied: (1) All subdivision proposals sha11 be consis- tent with the need to minimize flood damage. (2) All subdivision proposals shall have public utilities and facilities, such as sewer, gas, eiectrical and water syste�ns, located and constructed so as to minimize flood damage. (3) All subdivision proposals shall have ade- quate drainage provided so as to reduce ex- posure to flood hazards. (4) Base flood elevation data shall be provided. (Code 1980, § 146.008(d)) Cross reference—Subdivision and condominium p3atting generally, ch. 46. Sec. 5i.35. Areas of shallow flooding (AO zonesj. Located within the areas of special flood hazard are areas designated as shallow flooding a�eas. Beeause these areas have special flood hazards associated with base flood depths of one to three feet, where a clearly defined channei does not exist and where the path of flooding is unpredictable and indeterminate, the following standards are required: (1) All new construction and substantial im- provements of residential structures shall have the lowest floor, including the base- ment, eievated to the depth number speci- fied on the flood insurance rate map, in feet, above the highest adjacent grade. If no depth number is specified, the lowest floor, including the basement, shall be elevated at least two feet above the highest adjacent grade. (2) All new construction and substantial im- provements of nonresidential structures shall: (a) Have the lowest floor, including the basement, elevated to the depth number specified on the flood insur- ance rate map, in feet, above the highest adjacent grade. If no depth number is speci�ed, the lowest floor, including the basement, shall be ele- vated at least two feet above the highest adjacent grade; or (b) Together with attendant utility and sanitary facilities, be completely flood- proofed to or a�ove that level so that any space below that level is water- tight with walls substantially imper- meable to the passage of water and with structural components having the ca- pability of resisting hydrostatic and hy- drodynamic ioads and effects of buoy- ancy. (Code 1980, § 146.008(e)) Snpp. No. 6 CD5i:14 � � . � .` � �,�' -- �. � - . r - -- t� - - � '�A = � � �� ,0� �� . � C[T1f OF CLFQRWATER- FLQRIDA MAY - 1996 EROSION AND SILTATION CONTROL POLICY The following Erosion and Siltation Control Standards and procedures shall apply to all physical improvement projects which are subject to the rules and regulations of the City of Clearwater Engineering Department. 1. SITE PLAN REVIEW: All erosion and siltation control methods to be employed during construction shall be shown on the final construction plans submitted for approval to the Engineering Department. 2. LAND CLEARING AND GRIIHBING: All projects that will denude soil (i.e., one that requires grass and brush removal or asphalt, concrete and building removal prior to actual construction) or that will involve ground alteration such as excavation shall be required to have a grubbing and clearing permit prior to any such work (per Article I, Chapter 50, City Code). 3. STABILIZATION OF DENIIDED AREAS: No disturbed area may be denuded for more than thirty (30) calendar days unless otherwise authorized by the City Engineer. During construction, denuded areas shall be covered by mulches such as straw, hay, filter fabric, seed and mulch, sod, or some other permanent vegetation. Within sixty (60) calendar days after final grade is established on any portion of a project site, that portion of the site shall be provided with established permanent soil stabilization measures per the original site plan, whether by impervious surface or landscaping. - 1 - 04/96 4. PROTECTION AND STABILIZATION OF SOIL STOCRPILES: Fill material � stockpiles shall be protected at all times by on-site drainage controls which prevent erosion of the stockpiled material. Control �', of dust from such stockpiles may be required, depending upon their location and the expected length of time the stockpiles will be present. In no case shall an unstabilized stockpile remain after thirty (30) calendar days. 5. PROTECTION OF E%ISTING STORM 6EWER BYSTEMB: During construction all storm sewer inlets in the vicinity of the proj ect �' , shall be protected by sediment traps such as secured hay bales, � sod, stone, etc., which shall be maintained and modified as required by construction progress, and which must be approved by the City Engineer before installation. 6. SEDIMENT TRAPPING MEASIIRES: Sediment basins and traps, perimeter berms, filter fences, berms, sediment barriers, vegetative buffers and other measures intended to trap sediment and/or prevent the transport of sediment onto adjacent properties, or into existing water bodies, must be installed, constructed or, in the case of vegetative buffers, protected from disturbance, as a f irst step in the land alteration process. Such systems shall be fully operative and inspected by the Citv before anv other disturbance of the site beQins. Earthen structures including but not limited to berms, earth filters, dams or dikes shall be stabilized and protected from drainage damage or erosion within one week of installation. - 2 - 04/96 � � � 7. BEDIMENTATION BASINB: Areas of 3 acres or more shall be required to have temporary sedimentation basins as a positive � remedy against downstream siltation and will be shown and detailed on construction plans. During development, permanent detention � areas ma be used in lace of silt basins, provided they are Y P � maintained to the satisfaction of the City. The contractor will be required to prohibit discharge of silt through the outfall � structure during construction of any detention area and will be � � � � � � � required to clean out the detention area before installing any permanent subdrain pipe. In addition, permanent detention areas must be totally cleaned out and operating properly at final inspection and at the end of the one year warranty period. When temporary sedimentation basins are used, they shall be capable at all times of containing at least one (1) cubic foot of sediment for each one hundred (100) square feet of area tributary to the basin. Such capacity shall be maintained throughout the project by regular removal of sediment from the basin. 8. WORRING IN OR CROSSING WATERWAYS OR AATERBODIES: Land alteration and construction shall be minimized in both permanent and intermittent waterways and the immediately adjacent buffer of 25 feet from top of bank of the waterway. Construction equipment and vehicles shall be kept out of waterways and the buffer area whenever possible, and barriers shall be used to prevent access. Where in-channel work cannot be avoided, precautions must be taken to stabilize the work area during land alteration, development and/or construction to minimize erosion. If the channel and buffer area are disturbed during land alteration, they must be stabilized within three (3) calendar days after the in-channel work is completed. - 3 - 04/96 Silt curtains or other filter/siltation reduction devices must be j installed on the downstream side of the in-channel alteration activity to eliminate impacts due to increased turbidity. Wherever � stream crossings are required, properly sized temporary culverts shall be provided by the contractor and removed when construction is completed. The area of the crossing shall be restored to a condition as nearly as possible equal to that which existed prior to any construction activity. 9. SAALES, DITC�ES AND CHANNELB: All swales, ditches and channels leading from the site shall be sodded within three (3) days of excavation. All other interior swales, etc., including detention areas will be sodded prior to issuance of a Certificate of Occupancy. 10. IINDERGROIIND IITILITY CONSTRUCTION: The construction of underground utility lines and other structures shall be done in accordance with the following standards: a. No more than 500 lineal feet of trench shall be open at any one time; b. Wherever consistent with safety and space consideration, excavated material shall be cast to the uphill side of trenches. Trench material shall not be cast into or onto the Mj slopes of any stream, channel, road ditch or waterway. c. Stormsewer inlets in the vicinity shall be protected. 11. MAINTENANCE: Al1 erosion and siltation control devices shall be checked regularly, especially after each rainfall and will be cleaned out and/or repaired as required. - 4 - 04/96 � � 12. COMPLIANCE: Failure to comply with the aforementioned requirements may result in a fine and/or more stringent enforcement procedures such as (but not limited to) issuance of a"Stop Work Order". City of Clearwater Standard Detail Drawings No. 601-607 are examples of accepted methods that may be used or required to control erosion and siltation. - 5 - 04/96 �� .;;. 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'-.� �%9 : � � -„�.�""`'�. . r r< < ';I,.2' . ` �� r �� -- �W��`'"�� ,F' �, , �"��,; `' k��^� � , ,� : �" �` � x � �' j� .� ;• f` Y< ,;. "f � ; • . . , •��a. i�.l � �� C� � � � � � � LJ � � � CITY OF CLEARWATER DEPART'MENT OF PUBLIC WORKS STORM DRAINAGE DESIGN CRITERIA INTRODUCTION This manual is a guide to assist Engineers in the design of stormwater systems in the City of Clearwater. In general these standards are a combination of requirements set by the Southwest Florida Water Management District, and requirements set by the City of Clearwater, Public Works Department. This manual does not propose to itemize the requirements of the Southwest Florida Water Management District, but to highlight and detail the requirements of the City of Clearwater. Where design standards of applicable regulatory agency's vary, the more restrictive or higher standard will apply. The Designer is required to be familiar with the current design requirements of the Southwest Florida Water Management District. The appropriate Southwest Florida Water Management District storm water permit and other applicable regulatory agency permits will be required prior to any final construction permit approval by the City of Clearwater. The Designers attention is called to the City of Clearwater requirement that all development and redevelopment will require provisions for storm water management. In particular, redevelopment will be required to provide storm water management facilities in accordance with the regulations herein. For the purpose of administering these stormwater management regulations, redevelopment is defined as the alteration of buildings, parking, or other landform features of a property which necessitates the Community Development Code review process. Redevelopment of property for which no stormwater management facilities exists will be required to provide such facilities in accordance with the methodology contained herein, notwithstanding that the circumstances of the redevelopment may not result in an increase of stormwater runoff. STOFZMWATER MANAGEMENT DESIGN CRITERIA 1. GENERAL: All construction shall comply with the City of Clearwater Contract Specifications and Standards. All stormwater facility designs must be designed and certified by a Florida Registered Engineer. Record drawings shall be submitted and certified by a Florida Registered Engineer before final acceptance of project. Desicm Frec�uency (a) - 10 Year - storm systems, culverts (b) - 25 Year - channels and detention areas with outfalls (c) - 50 Year - detention areas without outfalls (d) - 100 Year - detention areas without outfalls which when capacity is exceeded overflow onto private property Runoff Coefficients: Ponds, lakes and detention area (wet or dry) Buildings, paved areas, and other impervious areas Turfblock Green or pervious areas 1.00 .95 .45 .20 Design coefficients shall be obtained by using the above coefficients on a weighted run off inethod for both pre-development and post-development. 2. STORM DRAINAGE: Detention areas must be built before storm sewers are installed. Slopes shall not be steeper than four to one (4 . 1) and shall be protected from erosion by sod. Time of Concentration Time of concentration to first inlet on a system shall be determined by using velocity of runoff chart. (Chart attached). A minimum time of 15 minutes to first inlet shall be used. 1 July - 2000 �. 3. STORM SEWERS, INLETS, AND STREET DESIGN PERTAINING TO WATER FLOW � Unless specifically approved by the City Engineer, reinforced concrete pipe shall be used in all easements and street rights-of- way. Minimum size shall be 15" diameter. Design frequency - 10 � year storm. Mannings Roughness coefficient for storm pipe: (a) RCP N � 15" - 30" inclusive .013 36" - 48" " .012 54" - up .011 ��'� (b) CMP or Aluminum .023 Asphalt coated .018 (c) PVC Storm Drain Pipe .009 The slopes for culverts used as storm sewers shall produce a velocity within the following limits: Maximum Minimum CMP 10 f.p.s. 2 f.p.s. RCP 12 f.p.s. 2 f.p.s. � Standard hydraulic gradient elevation shall be minimum of 1.0 foot below throat of inlet or manhole. � Minimum Culvert Size: (a) - Pipe - 15" � (b) - Box Culvert - 3' x 3' Maximum length of pipe without access structure: � (a) - (15" - 18") Pipe - 350 ft. (b) - (24" - 36") Pipe - 400 ft. � (c) -(42" & cover & all box culverts) - 500 ft, 4. INLETS AND MANHOLES: � Vertical throat opening for inlets shall be 5". Inlets and manholes will be designed so as not to have standing ' water when not functioning. All inlets to have manhole lids in accordance with City standards. �, 2 July - 2000 � � Inlets are not to be placed in curb return. Pipes are to be cut flush with inside wall of inlet. Subdrain shall enter structure a minimum of one foot above invert and 2' 6" below top of structure. When pipe diameter exceeds 30", inlets shall not be used as junction boxes, limit 3 pipes per inlet. For design purposes inlet capacity should be assumed as follows: 5" Throat Grate Inlet * (No Wing Type * (Single Wing Type (Double Wing Type - 4 CFS - 4 CFS - Ei C FS - 8 C FS *- Subject to City Engineer's approval only. Standard inlet wings shall be a minimum of four feet in length as per City Standards. 5. STREET DESIGN: Generally gutter water should not be carried for distances exceeding 600 feet. Except as where impractical, channeling water across intersections will not be allowed. Inlet Spacing Normal Grades -.5o up to 20 - 600 ft. Steep Grades - greater than 2� - 400 ft. Where grades exceed 20, a 6' wing will be required on the inlet. Grades less than O.So are subject to City Engineer's approval only. A minimum of 0.5o grade shall be required for asphalt drives and parking lots. Right-of-way shoulders shall be sodded three feet behind curb and remainder, graded, seeded, and mulched. Mulch to be dry or green per F.D.O.T. current standard. 3 July - 2000 6. HEADWALLS: All inlet and outlet pipes shall be provided with a headwall, mitred end section, or flared end section. Headwalls shall be reinforced concrete. Pinned Sand/Cement bag structures built in accordance with City of Clearwater specifications may be permitted only for temporary use. Al1 outlets shall have an appropriate apron to prevent erosion. 7. CHANNELS AND SWALES• Rouqhness Coefficient - for a channel with maintained vegetation is .030 to .035. Normal channel depth shall not be within 10% of critical depth. When velocities exceed maximum allowable values energy dissipators shall be provided. Plans shall include undeveloped areas, pre- development drainage, and pre-development discharge at key design points such as channels, existinq ponds, sloughs, etc. Also post- development calculations for storm runoff and proper detention shall be determined. Type of Soil in Flow Line Fine Sand Sandy Loam Silt Loam Firm Loam Fine Gravel Stiff Clay Coarse Gravel Hardpan Maximum Allowable Velocity (f.p.s.) 1.5 1.8 2.0 2.5 2.5 3.8 4.0 6.0 Major channels (Q greater than 30 CFS) shall have a five foot bottom width. Drainage swales normally will not be permitted along rear lot lines. Swales shall be vegetated and designed for a 50 year storm. LJ July - 2000 � � 8. STORM WATER DETENTION: � This policy is to insure that runoff will not be increased beyond its present state by development. It is also inter�ded to protect the quality of receiving waters in the City from additional pollution resulting from new development. The design frequency � shall be a 25 year storm based on rainfall intensity graph for the Clearwater area. The duration may be obtained from the Rational method for areas up to 10 acres. Design variations may be � considered for areas less than one acre. The runoff coefficient differential DELTA C is obtained by subtracting pre-development coefficient from post-development coefficient. � For projects greater than 10 acres, systems design must incorporate the U.S. Department of Agriculture Soil Conservation Service Modified Unit Hydrograph, or equivalent as determined by the City � Engineer, in conjunction with a SCS Type II Florida Modified rainfall distribution curve. � In the case of redevelopment of land upon which no stormwater attenuation or water quality feature exists, or upon which the existence of such features do not meet the standards applicable at the time of redevelopment, the redeveloper will }�e required to � provide facilities in a manner similar to an original developer and in proportion to the extent to which the site plan of the property is affected or disturbed by the redevelopment. In the methodology � for calculating stormflow from property undergoing redevelopment, the pre-development volume of runoff will be calculated by the use of a Weiqhted Runoff Coefficient taken � from the following table: � � � � � ' I L� � � PROPERTY DESCRIPTION* WEIGHTED COEFFICZENT OF RUNOFF** Undergoing redevelopment and not contributing to an existing flooding 1/2 Actual problem *** Undergoing redevelopment and contributing to an existing flooding .20 problem Undergoing redevelopment and contributing to an existing flooding problem for which an attenuating stormwater manage-ment project is under 1/2 Act�ual construction * City Engineer shall be the determining authority of the Property Description ** In no case shall the coefficient be less than .20 ** To be applied only to area of property undergoing alteration *** Situation wherein property damage occurs in a 25 year - 24 hour storm July - 2Q00 The City of Clearwater standards relative to the provision of water- quality features are, by this reference, the same as the Southwest Florida Water Management District's, excepting that where SWFWMD may rule that no water quality features are required, the City's standard shall require the provision of treatment of 1/2 inch of rainfall as applied over the entire area of a development project and 1/2 inch as applied over the portion of the site plan undergoing alteration in the case of redevelopment. 0 � /�� : nere The design hydrograph is an isosceles triangle with a time of concentration equal to one half of the duration. Detention design shall incorporate a minimum time of concentration of one hour & a 25 year storm intensity. The outfall shall be restricted to accommodate the pre-development flow with appropriate overflow facilities -i�E of t(Sec.) for larger volumes . Detention ponds CONCENT1teT10N � will require 0. S of freeboard. ou��r�ow -� Volume of detention may be established by multiplying time of concentration times DELTA Q providing the outlet control structure (weir, pipe, etc.) is designed to restrict other than pre- development Q. An outfall design allowing less than the pre- developed Q to pass is acceptable if storage is provided. Discharge to Lake or Wetland Zn situations where the pre-developed Q abuts a lake or wetland, the developer may store additional runoff above that required for water quality treatment in the wetland subject provided that the following conditions are met: Wetland with positive outfall has the capacity to store a 25 year design storm. Wetland with no outfall has the capacity to store a 50 year design storm. Wetland has sufficient capacity to absorb additional runoff. Al1 areas on or off site contributing to a wetland shall be included in the design. Runoff discharging directly to the wetland shall be transmitted via grassed swales. Runoff from lots abutting a wetland shall be collected in an interceptor swale designed to drain dry in less than 24 hours. 0 July - 2000 � � �' � � � � � The maximum design high water elevation of the wetland shall be one foot below the lowest floor elevation around the wetland or one foot below the flow line of the nearest adjacent road, whichever is � lower. The design wetland elevation shall be determined by the inflow and outflow hydrograph method. The impact to the wetland system will be taken into consideration � when reviewing these applications. Those areas directly outfalling tidal salt water basins will be reviewed for water quality impacts only. � � �� Dry Detention Systems Dry detention systems are those that under non storm conditions are dry, ie., has a grassed bottom and side slopes that can be mowed. These systems shall be designed with no steeper than 4:1 side slopes, preferably no deeper than three feet deep and drain dry within 24 hours or less. The side slopes and bottom shall be sodded. Drawdown may be accomplished by the use of underdrain according to City specifications or by percolation if the soil conditions permit. At least one soil boring showing soil profile and the seasonal high water table shall be provided with the site plan. The soil boring shall be located at the center of the proposed detention area. Wet Detention Systems Wet detention/retention systems are those that under non storm conditions are designed to have a standing pool of water. The design shall be in accordance with City Details. All wet systems shall incorporate a vegetated littoral shelf over 350 of the areal cover of the pond under normal conditions. Drawdown may include an underdrain system, natural percolation or slow bleed down system. Underground vaults are not allowed as water quality facilities and are permitable for water quantity storage only as specifically allowed by the City Engineer. Detention Pond Walls The use of vertical walls on the sides of detention ponds or side slopes steeper than 4:1 are discouraged and'will not be permitted except as may be specifically approved due to reason of undue hardship to the developer. In no circumstance will vertical walls on detention ponds be permitted adjacent to rights-of-ways, along the boundaries of adjacent parcels of land, on more than two sides of a detention pond, or any side of a pond serving c�nly as a water quality facility. 7 July - 2000 9. SUBMITTALS In addition to submitting complete plans and specifications, the Engineer shall also submit the following: A. - Drainage calculations or computations including hydro- graphs for any detention areas, retention ponds, complete with cross sections. B. - A scale map or plat showing each subdivision drainage basin, as an aid for review of the proposed work. A minimum of 50 feet of topographical survey shall be required adjacent to the perimeter of the proposed site. C. - Profile of hydraulic gradient for storm pipe system. D. - All pertinent information of adjoining properties affected by stormwater from site such as finish floor elevations of buildings, streets, channel or receiving waters to the final outfall. All adjacent property draining onto the proposed site is to be shown on the site plan. Before project is accepted by the Public Works Department, a Registered Engineer must submit written verification that the project was constructed in accordance with approved construction plans. 10. ATTACHMENTS• Rainfall - Intensity/Duration - Clearwater. This Rainfall Intensity Graph shall be used for 10, 25, and 50 year storms. VelocitY of Runoff - for use in determining intensity for above grade runoff. 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This manual is intended to provide water policy guidance for the development and implementation of programs. projects, rules and plans relating to City water resources. This document shall not constitute "standards" or "criteria" for which resource decisions on individual programs or projects must be made; rather this document is intended only to be a reference guide. Specific storm drainage design shall continue to be developed in accordance with the City Design Cnteria, codified by City ordinance. Specific goals, objectives, and policies that guide project implementation are clearly defined b�� the Cih��s National Pollutant Discharge Elimination System (NPDES) permit, the City Comprehensive Plan Drainage Policies (Goals No. 16 and 17), and State Water Policy and La�v. Policy Guidelines: It shall be the polic}• of tl�e Public Works Administration Department that: I. General Surtace Water Protection and ManaQement - The Public Works Administration (PWA) Department shall provide an effective stormwater management program to minimize adverse impacts on the City natural systems, property and public health, safety and welfare for the citizens of Clearwater. Inndeqr�ote mancrgemcnl o�� stormwater increases stormwater �lows and velocities, contrib��tes to erosron nnd sedimen�ntion, overinxes th� carrying capaciry of streams and other conveyances, disrupls Ihe r�nctions o��nah�rnl syslems, undermines,floodplain managemenl and �lood conlrol c frorls in dox•ns�renm cnmmr�nities•, rcduces ground water recharge, threatens pu6lic hcallh and snretl�, and i.s the primarl� sar�rce or pollr�[nnt load to Clearwnler's nnt��ral cons•1a! wn�cr rc.sor�rccs. As a resr�li. wa�er y:ralih� is• degraded nnd beneTcial r�sc o��the resor�rce is los�. ♦ PWA surface �vater management programs shall protect. preserve and restore the quality, quantit�� and envirorunental values for e�isting and ne�� ater resource drainage systems to the maximum extent practicable. ♦ PWA stonmvater management projects shall maintain, to the mazimum extent practicable, during and after construction, the pre-development storn��ater charactenstics of the site; to reduce stream channel erosion, pollution, siltation, sedimentation, and flooding; to reduce pollutant loading that diminish beneficial uses; to reduce the loss of freshwater by encouraging storm�ti�ater reuse, and to address storn�water management on a�vatershed basis, thereby providing cost effective water quality and quantity solutions to specific �z�atershed problems. C ♦ ♦ ♦ All operation and maintenance activities w�dcrtaken b�� PWA in City storm��ater systems, all capital improvement projects developed b�� PWA, and private development projects which are reviewed in PWA within City stom��vater s��stems shall conform to the requirements of State Water Policy as required by the City NPDES MS4 Pern�it. All stormwater related maintenance and capital improvements shall conform to the specific goals, objectives, and policies contained ��ithin the City Comprehensive Plan, �vith particular attention being given to compliance ��th prescribed Levels of Service which have been established to determine the availability of facility capacity and demand created by new or redevelopment. When determining the impact on water resources of the City in the development of all stormwater related projects by PWA, staff shall consider the impact of the facilities on water quality, fish and wildlife, environmentally sensitive lands, reasonable-beneficial uses of water, recreation, navigation, salt�vater or pollution intrusion, and factors related to erosion and sedimentation, public health, safety, and �ti�elfare to minimize adverse impacts. Storm��ater facilit�� project development shall encourage interagenc�� cooperation and alternate funding sources for implementation ��henever feasibl�. II. Stormwater ManaQement Implementation - The Public VVorks Administration Department shall fully develop stormwater programs and capital improvement projects with implementation success in mind. Innpproprinle implementntion of stormwater management programs and projects, nnd the mannge�menl of projec! cons�ruction, monrloring, reporting and rela�ed permrt or ngreemenl conditions cnn lend to inefrective and costiv project delays or imposed penalties. ♦ ❑ ❑ ♦ ♦ ♦ The construction and operation of Cih� storn��ti�ater facilities ��hich manage or store surface waters, or other facilities ��hich drain, divert. impound. discharge into, or othenvise impact ��aters in the State, and the improvements served b� such facilities, shall be consistent ��th all State and regional pern�itting requirements. All storn��ater facilities project development shall mc;et applicable design or performance standards, ��ith particular attention bein� given to �rhether adequate provisions exist for the continued satisfactory operation and maintenance of the planned facilities after construction has been completed. All storni��ater facilities and related improvemcnts must provide adequate provision to avoid increased damage to off-site properties. ��ater resources. natural systems or the public caused by: (1) floodplain development. encroachment or other alteration; (2) retardant_ acceleration or diversion of flo�ring ��ater. (3) reduced natural attenuation: (4) lack of adequate maintenance access; (5) facilit� failure: or (6) other actions that could adverselv affect off-site ��ater flows or levels. All stonm�•ater facilit� repair shall be perforn�ed in a manner that da;s not exacerbate existing stor►m��ater problems Erosion and sediment control plans detailing appropriate methods to retain sediment on-site shall be required for all land disturbing activities. Sediment control plans shall be fully implemented and maintained during construction. Wl�ere conflicts ma�� reasonablv be expected to exist bet�veen public and private stormwater facilities during commercial site plan revie��, resolution of those conflicts shall be resolved by the Capital Improvements Storm��ater Management Committee. 2 � � � � � � � � � ♦ 7liere shall be ��thin PWA, a Capital Improvements Storn�H�ater Management Conunittee that shall meet at least quarterly and be made up of at least two representatives from PD&E, Production, Transportation and Drainage, Construction Inspection, and the Public Works Administration Controller. The purpose of this Committee is to consider significant operational issues, address policy changes needed to facilitate stormwater management for the City that need to be recommended to the Public Works Administrator, and to establish capital project reconunendations to the Public Works Administrator annually, by January, each }�ear, to be included into the department operating budget. ♦ Stormwater system management in Clean�•ater shall be categorized as either Storm�ti�ater Maintenance Operation or Storm�cater Capital Improvements. Stormwater Maintenance Operation shall be funded as a line item ��•hile Stormwater Capital lmprovements shall be funded as discrete projects based on annual prioritization through the annual watershed management planning and evaluation process, subject to recommendation by the Capital Improvements Stormwater Management Committee annually, and approved by the Public Works Administrator. ♦ Administration of the Storn��vater Svstem shall be facilitated b�� a geographic information system database that shall be cre.ated and maintained by Engineering with direct input by Transportation and Drainage. ♦ A rainfall, ��ater quality, and flo��' monitoring net�� ork shall be installed and maintained by Engineering for the purposes of model calibration, monitoring system response, and permit program compliance (NPDES & Tampa Ba�• Estuan� Program). ♦ Engineenng shall maintain a current and calibrated hydrologic/h}•draulic model for the monitoring of e�isting conditions the evaluation of proposed alternative solutions to storn��ater problems. III. Stormwater t1'laintenance Operation - The establishment of these maintenance policies for the � Transportation and Drainage Bureau is critical to the overall effectiveness of unit operation and accountability, and will serve as a guide to meeting the compliance requirements of NPDES to further enhance the present MS4 system operation and maintenance programs. � � � � � I, � � ♦ NPDES Permit Compliance: Procedures for maintenance of road�vays and storm�ti-ater runoffshall operate in compliance ��ith NPDES, MS4 Pern�itting. ♦ Stormwater Ponds: Lake/Pond maintenance operation shal) be restricted to City o�ti�ned s}�stems or those portions of systems o��lied br the City onlr�, and shall be limited to onl}� those controls needed to satisfy an immediate problem, svstem operation, or to comply with provisions of agreement to remove silt and/or nuisance or exotic plant species where all appropriate licenses. pern�its. or exemptions have first been obtained. PWA shall not be responsible for maintenance of pri��ate lakes or ponds. All repair ��ork shall be recorded on appropriate fornis. ♦ Conveyance Systems: Shall not be enlarged or enhanced from the existing condition Hithout pnor approval from En�ineering. Repairs and installation of equivalent pipe(s) shall be limited to a maximum of 200 feet in length and up to 24 inches in maximum diameter, no deeper than � feet (Sub-drain and storn� pipes). Ditches, s��ales_ and charu�el creeks shall be maintained ��ithin their original design parameters through silt removal and ditch bank grading on a frequency of no less than once ever�� five years. Ditch cleaning and cutting shall occur htiice a ��ear. �-� • '� '�� a°�'' � ��'� � � "_ � ° ��. Erosion problems fall within two categories, within the City's easements or outside ot the City's easements. Erosion that is contained within the easement will be evaluated for tlow restrictions and addressed if 3 � � � � � � � � L .J � � � L_I � � � necessary. Erosion that is not contained within the easement will be further evaluated to determine the source ot the erosion. The City will be responsible if the erosion is caused by our conveyance element. The Citizen will be responsible it the erosion is caused by runoff trom their property. Stormw�ater pipe cleaning b�� machine such as Vactor and hand rods shall be on a continuous basis. ♦ Inlets, Curbs and Gutters: Street s�veeping operations shall occur on all residential streets twice a year. Some areas of the Citv may be addressed more frequently than others at the discretion of the Public Works Administrator. Street s��eeping all City° main artenals shall occur on a continuous basis. Curbs and gutters shall be maintained in accordance with "As- Built" conditions with replacement being completed as maintenance b�� Transportation and Drainage cre�vs for run-lengths less [han 200 feet. All ADA ramps are to be maintained throughout the Cit}� with proper grade slope and landing. Design of inlets, catch basin boxes, and silt boxes shall be within these established maintenance guidelines. Whenever possible, inlets and catch basins shall not be installed within sidewalks. ♦ Paved and Unpaved Streets: Maintenance and operational reporting shall be reported, as defined under Storm�vater Management Implementation guidelines. Litter control shall be provided b� Transportation and Drainage on onl� those streets ��hich maintain an active "Adopt-A-Street" or an "Adopt-A- Pond�' Program. ♦ Drainage Easements: Maintenance and operation of Cit�� lakes and streams rights-of-way and easements and associated Cih� storn��vater facilities shall be the responsibilit�� of Transportation and Drainage. ♦ Citizen Support: Transportation and Drainage shall be the point of first contact by citizen response requests to investigate storn��ater problems in Cleanvater. Transportation and Drainage shall record and respond to all citizen requests for inspection of a problem within 48 hours of receipt (Attachment A: Form). Response shall either include a maintenance resolution or follo��-up request in writing to PD&:E for further im�estigation as a potential candidate to capital improvement. ♦ Stormwater Certification: . All PWA emplo��ees ��°orking �� ith storn�water and drainage shall be certified in sedimentation and erosion control. Furthem�ore, it shall be a requirement that all Transportation and Drainage storn��ater personnel be "C" licensed and/or sedimentation erosion control certified storn��ater technicians �� ithin h�o ��ears of hire. IV. Stormwater Capital Improvements - The City Comprehensive Plan requires that stormwater management be implemented in the most cost effective and efficient manner possible. For that reason, the City has developed a Watershed 1�1anagement Action Plan, intended to not only prevent existing water resource problems (Quantity & Quality) from becoming worse, but also to reduce existing tlooding problems, to improve existing water qoality, and to preserve or restore the values of City natural ecosystems. Therefore, all stormwater related problems which are not defined as Storm�+•ater Maintenance and Operation shall be considered as a Stormwater Capital Improvement and shall be prioritized (Attachment B: Priority) and funded in accordance with tlie City Watershed 119anagement Action Plan annually. This shall be accomplished upon recommendation by the Capital Improvements Stormwater �lanagement Committee and approved by the Public Works Administrator, City Manager and City Commission. ♦ All projects received by PD&E shall be evaluated and ranked according to the problem classification established by the Citv Watershed Management Action Plan and included in the project database for quarterl}� revie�v by the Capital Improvements Storm�vater Management 4 � � � � � � � � � �.J � � � Convnittee. All projects provided to the Committee shall be sorted by Category Code and Watershed Basin for their revie�s and approval. ♦ Implement project development and construction in accordance with Committee recommendations and appropriate City approvals. V. EMERGENCY PROVISIONS - There shall come from time to time, those situations which result from untoreseen circumstances that shall require PWA staff the flexibility to accommodate resolution of an immediate probiem. Implementation of any project relative to this section shall be recommended by the Capital Improvements Stormwater Management Committee and approved by the Public Works Administrator, whenever: ♦ A shoreline emergency has been declared by the Florida Department of Environmental Protection, consistent with Chapters 62B-33.014 or 62B-49.009. ♦ A project requires immediate action to protect life and propert��. provided that EITHER condition e�ists: � The condition of am- storn��ater management s��stem. dam, impoundment, reservoir, appurtenant work. or ��orks is so dangerous to die safety of life or property as not to pern�it time for the issuance and enforcement of an order relative to maintenance or operation; OR � The condition of passing or imminent floods that threaten the safet� of any stormwater management svstem, dam. impoundment. reservoir. appurtenant work. or works; AND THE FOLLOWING GUIDELINES ARE ALSO TRUE: ♦ ♦ ♦ ♦ There are no operational changes appropriate or available to alleviate the emergencv. The project will not result in the creation of am� ne�� lands or pern�anent structures that did not e�ist before the emergency. Project construction is minimized to onl� that ��hich is absolutel� necessarv to prevent the inUninent collapse of a structure or ameliorate circumstances �vhich threaten human safety or life. An after-the-fact pern�it shall be rcquired for all ��ork completed that clearh�, is not temporary in nature. � Public Works Administrator � � Cit� Engineer Asst. Dir. of Eng/PD&E r ; � � � � � � � � I � � � � � � � � � � Staff Ranking of Problem Classifications Priority Pro6lem Classisfication 1 F-1 Water in Structure 2 F-2 Street Flooding to the Degree of Impassability (10- Year Storm Event; Pipe Collapse) 3 C-1 Regulatory Compliance with Permits Having Significant Fines 4 F-3 Bridge Overtopping (25-Year Storm Event) 5 E-1 Major Loss ofBank (Outside Easement) 6 C-2 Regulatory Compliance with Permits 7 WQ-1 Water Quality Degradation 8 O-1 All Other Categories � � � � � � � � � �`l C� � � C� � � � �� A endix H pp CCMP - Clearwater Action Plan �' , � City of Clearwater Action Plan 1995-1999 Year 2000 Supplement � In accordance with the TBEP participants' commitment to implement specific projects or actions which will help to meet the goals of the CCMP, the City of Clearwater submitted an Action Plan in summer 1998, identifying specific projects to be implemented between 1995 and 1999. Following � are the updated, revised and new planned and completed actions submitted by the City of Clearwater to address each issue identified in the CCMP. � WQ-1 Implement the Nitrogen Management Strategy for Tampa Bay Public and private partners in the Tampa Bay Nitrogen Management Consortium, including all � members of the TBEP Management Board and key industries, electric utilities, fertilizer manufacturers and agriculture, have pledged to implement over 100 projects which will reduce nitrogen to the bay between 1995 and 1999. The Crty of Clearwater's pro�ects are as follows: � � � � � � � � � � � Project Name: Del Oro Phase I Project Description: stormwater retrofit Location (drainage basin): Old Tampa Bay Implementation Schedule: Phase I construction is complete Likelihood of Completion: High How financed: City Acres treated: 63 acres Land uses treated: residential Estimated current load: 6041bs/yr (63 acre watershed; 20.8 inches of annual runoi� (52 inches annual rainfall based on City data and a runoff coefficient of 0.4; rounded to 35.5 million gallons of runoff/year); medium residential = 2.04 mg/L TN concentration) Treatment method: Wet Pond Percent TN removal: 27% (conservative assumption of slightly less than average efficiency) Annual TN removed: 1631bs/yr Year 2000 updates/revisions: Project complete Estimated project costs: $374,000 Financial partners: Clearwater, Florida Department of Community Af�airs Project Name: Coopers Point Restoration Project Description: Habitat restoration on the shore of Old Tampa Bay. Removal of exotic vegetation in an area scheduled for development as a passive park. Location (drainage basin): Old Tampa Bay Implementation Schedule: Property purchased, improvements under construction Likelihood of Completion: High How financed: Joint City/County Acres treated: 37 acres Land uses treated: Undeveloped Estimated current load: Treatment method: Percent TN removal: Annual TN removed: Preclusion of additional loading from residential land use (37 acres x (4.521bs/ac/yr - 1.15 Ibs/ac/yr) = 125 lbs/yr (Taken verbatim from "Guidelines for Calculating Nitrogen Load Reduction Credits" , March 1997, by Zarbock & Janicki (Page 14 - Example 2). Year 2000 updates/revisions: Project 95% complete, will be 100% complete by the end of 2000 Estimated project costs: $320,000 Financial partners: Clearwater, Southwest Florida Water Management District, Florida Department of Environmental Protection Project Name: Allens Creek Rehabilitation at Lake View and Hercules (Red Maple Swamp) Project Description: Habitat floodplain restoration and stormwater treatment Location (drainage basin): Old Tampa Bay Implementation Schedule: 90% design phase complete; construction in 1998 Likelihood of Completion: High How financed: Joint City/County/SWFWMD Acres treated: 1,126 Land uses treated: Residential/Commercial Estimated current load: 1280 lb/yr (Dames and Moore report, 1997) Treatment method: Wet pond Percent TN removal: 15% (TBNEP Guidelines) Annual TN removed: 191 lbs/yr (All loading estimates calculated by Scott Stephens, (SWFWNID), in cooperation with Pinellas County and Tampa Bay Engineering as part of SWIM project). Year 2000 updates/revisions: Project construction completed in July of 1999. Maintenance and monitoring of wetland plantings to continue through 2000. Estimated project costs: $1,879,000 Financial partners: SWFWMD $935,000 (50%), Pinellas County $308,550 (16.5%), Cleartwater 626,450 (33.5%) Project Name: Stormwater Reinspection Project Description: Restore treatment capacity to 100% efficiency in seven coastal basins: Allens Creek, Alligator Creek, Mullet Geek, Bishop Creek, Possum Branch, and Coastal Zone Basin #2 and #3. Reinspection program included inspection of 175 individual treatment facilities for commercial (90%) and residential (10%) developments. Location (drainage basin): Old Tampa Bay Implementation Schedule: Completed (City to perform reinspection every 5 years). Likelihood of Completion: High �. � � � � � � � � � � � � How financed: City Acres treated: 120 acres (90%commerciaUlO% residential); (Program involved the reinspection of approximately 175 facilities treating runoff from approximately 120 acres of developed land (108 acres of commercial and 12 acres of residential). The reinspection program restored a11 facilities to original `design' and recovered over 200,000 cubic feet of treatment volume). Land uses treated: Residential (10%)/Commercial (90%) Estimated current load: 950 lbs/yr (185,049 cubic feet @ 1.83mg/L concentration + 20,561 cubic feet @ 2.04mg/L concentration) Treatment method: Detention/Dry Pond Annual TN removed: Because the future modeled estimates assume that facilities are working at design removal efficiency, restoration to this capacity will not result in additional TN removal. However, it is recognized that an estimated 258 lbs/yr would be delivered to the receiving waters if this action had not been implemented. (recovery of 205,610 cubic feet of treatment volume from 175 treatment facilities. Recovered treatment volume multiplied by 40 events annually of 0.6 inches or greater rainfall, assuming 1.83 mg/L of concentration for 90% and 2.04mg/L of concentration for 10%, and a 27% treatment efficiency). Year 2000 updates/revisions: Program currently on-hold due to personnel and funding constraints. Estimated project costs: Financial partners: Project Name: Development and implementation of a City-wide plan for expansion of reclaimed water service Description: Clearwater is currently developing a city-wide plan for its reclaimed water system which will ultimately redirect 16.1 mgd of ef�luent currently entering Tampa Bay. Implementation schedule: Plan completed by 9/98. How financed: Joint City/SWFWMD Estimated current load: 16.1 mgd x 3 mg/1 = 73.5 tons/yr Treatment methods: Reuse of treated e�luent Percent removal (TN): 95% TN load reduction/yr: l.l tons/yr **(assuming full financing and implementation of 0.25 mgd service by 2002). Year 2000 updates/revisions: Reclaimed Water 20 Year Master Plan completed in October 1998. Redirection of ei�luent currently discharging to Tampa Bay scheduled for 2001- 2005. Estimated project costs: Financial partners: City, Southwest Florida Water Management District Project Name: Improve business and homeowner opportunities for hazardous waste disposal Description: Clearwater is coordinating with Pinellas County in conducting Amnesty Days. Clearwater is also implementing stormwater treatment at their solid waste transfer station, which will capture and treat waste leachate from garbage trucks. Implementation schedule: Planning compieted by 1/98. Construction completed by 1/99. How financed: City *** As a rule assumptions were made on the conservative side (e.g. less efficient, less volume) rather than assuming best case treatment. *** Year 2000 updates/revisions: Cooperation with Pinellas County Amnesty Days ongoing. Construction of leachate collection system at the Solid Waste Transfer Station completed in 1998 at a cost of approximately $40,000. Estimated project costs: Financial partners: Project Name: Clearwater Mall Retrofit Project Project Description: Stormwater retrofit of a portion of Clearwater Mall property in accordance with current regulatory criteria (0.75" of ef�ective treatment) Location (drainage basin): Old Tampa Bay Implementation Schedule: construction in 1998 Financed: SWFWNID; City of Clearwater Acres Treated: 24.6 Land Use: 100% commercial Estimated Untreated Load: 733 lbs/yr Treatment Methods: detention with infiltration Treatment Efiiciency: 64% (based on captured and retained runoff using 1995 rainfall amounts) TN Load Reduction/yr: 471 ]bs/yr Year 2000 updates/revisions: Delete, project determined to be not feasible. SW-1 Continue support for Florida Yards & Neighborhoods and similar pollution prevention programs. Florida Yards & Neighborhoods Program (FY&N) is an educational outreach program of the University of Florida Cooperative Extension Service. • The City of Clearwater will continue to seek opportunities to promote FY&N concepts through public education, including brochures and handout information, promotion of the program during routine site visits and public interaction, promotion of the program during various public meetings related to City projects, and occasional public workshops or forums. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: 4 �. � SW-2 Assist businesses in implementing site management practices to reduce stormwater runoff. � . The City of Clearwater will continue to review all commercial projects to ensure that new development and redevelopment provide required stormwater attenuation and treatment. � Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: � � SW-3 Encourage local governments to adopt integrated pest management policies and use environmentally beneficial landscape practices on public properties. � �� [�_� � LJ � � � � • The City of Clearwater will promote the practices of applying least-toxic pesticides and slow- release fertilizer on all properties of City facilities. These practices are also a contractual requirement for firms which perform maintenance on City-owned water bodies. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: SW-4 Reduce Impervious Paved Surface • The City of Clearwater promotes the use of turf block and grass parking when applica.ble by ordinance. The City is in the process of changing its land development code to require � impervious areas for redeveloped sites and increase green space for new and redeveloped sites. The new land development code will take effect in early 1999. Year 2000 updates/revisions: The land Development Code was adopted August 1 l, 1999.' City allows the use of turf block and grass parking on church and recreational facilities when approved by Planning and Development Services Estimated project costs: SW-5 Require older properties being redeveloped to meet current stormwater treatment standards or provide equivalent compensation • The City of Clearwater will continue to require all site redevelopment to provide attenuation for 50% of the peak intensity of the 25-year storm event. The City encourages alternative stormwater treatment methods at every opportunity, such as in-line stormwater retrofit structures for the removal of floating trash and organic debris, and regional stormwater facilities which employ `treatment train' designs. Year 2000 updates/revisions: Ongoing Estimated project costs: 5 Financial partners: SW-6 Promote urban compact development • The City of Clearwater promotes Brownfields development and was the first in Florida to receive legislative designation for a Brownfields project in downtown Clearwater. The City's Brownfields project covers 1,842 acres within the downtown core and approximately 100 potential contamination sites. The program is designed to stimulate redevelopment of this area by providing limits of liability for contamination issues, economic incentives to developers and financial assistance for site remediation. One of the program objectives is to retain business and industrial activities within already developed areas as opposed to encouraging new development in green areas. Year 2000 updates/revisions: Projects completed in the designated Brownfields area include the South Greenwood Police Substation and IMR Global. Work has begun on the North Greenwood Health Center and the Town Pond. Estimated project costs: Financial partners: AD-1 Continue to investigate the sources and effects of atmospheric deposition, and develop an action plan to address the issue. TBEP, in conjunction with FDEP, EPA, and EPCHC will continue to coordinate the ongoing research activities addressing atmospheric deposition in Tampa Bay and its watershed, including eight separate but related projects addressing the characterization, sources and impacts of atmospheric deposition to Tampa Bay and its watershed. • The City of Clearwater will continue to collect water quality and storm event data to support the TBEP Great Water Program. Clearwater is also planning the addition of rainfall gauges at select locations to assist with stormwater modeling progress and could support the TBEP network of rainfall collectors. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: AD-2 Promote public and business energy conservation • The City of Clearwater will be willing to provide literature describing the Green Lights program through its Central Permitting/I.,and Development Office. Year 2000 updates/revisions: No Green Light Program literature has been received to disseminate by the City. Estimated project costs: Financial partners: <, � � L�J WW-1 Expand and encourage the reuse of highly treated domestic and industrial wastewater where reuse produces a net benefit for Tampa Bay. • The City of Clearwater is currently developing a city-wide plan for its reclaimed water system which will ultimately redirect 16.1 mgd of ef�luent currently entering 7'ampa Bay. Year 2000 updates/revisions: See WQ-1 Redirection of efiluent currently discharging to Tampa Bay scheduled for 2001- 2005. Estimated project costs: Financial partners: WW-2 Extend central sewer service to priority areas now served by septic systems � • The City of Clearwater continues to implement a program for the expansion of central sewer collection. The City is finalizing plans to expand sewer service into a portion of the Allen's Creek basin where a large subdivision has agreed to annex into the City from Pinellas County. � � � � � �. � � � � � .i Year 2000 updates/revisions: Feasibility study scheduled for 2001 Estimated project costs: Financial partners: WW-3 Require standardized monitoring of wastewater discharges • The City of Clearwater continues to work with FDEP to implement reporting reyuirements under existing facility operations permits. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: WW-4 Revise HRS rules to incorporate environmental performance or design standards for septic systems This action will be revisited following the Healthy Beaches Tampa Bay project (initiated in February 1999) which will evaluate alternative public health indicators. Results from the Healthy Beaches project will be necessary to help define environmental performance or design standards. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: TX-1 Address hot spots of contamination • The City of Clearwater will support TBEP in assessing sediment contamination clean up and rnonitoring sediment chemistry and benthic communities in the bay. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: TX-2 Improve opportunities for Proper Hazardous Waste Disposal � The City of Clearwater continues to promote an amnesty day for the handling and disposal of hazardous materials for small business and residential hazardous materials, and will establish uniform procedures for the handling and disposal for hazardous materials by City departments by June 1999. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: TX-3 Reduce toxic contamination from ports and marinas • The City of Clearwater, although having no marinas in Tampa Bay, will promote the P2 program for the City Marina through the use of uniform procedures for materials management. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: TX-4 Promote IPM on farms to reduce runof�' Because the amount of IPM information provided to pesticide license applicants has been expanded, and because use of IPM is increasingly gaining acceptance among area farmers because of its cost- effectiveness, no further action is recommended at this time. However, TBEP will promote nutrient/pesticide management and IPM as essential components of FDEP's Whole Farm Planning effort. Updates/revisions: N/A Estimated project costs: Financial partners: PI3-1 Prepare maintenance plans identifying overflow areas within their sewage collection systems, and address those areas in their maintenance program • The City of Clearwater will be implementing a capital improvement plan to improve its wastewater collection system by reducing infiltration of water into the system. Line infiltration, which results in flows that exceed system capacity, is the primary cause of wastewater discharges from treatment facilities. Year 2000 updates/revisions: Phase 1 of the Sewer System Evaluation Study and Self Audit Program completed at a cost of $2.3 million dollars with recommendations for manhole renovation, upgrading pump stations and sewer lining. Manhole replacement and renovation 8 � � � � � � � �� ' � � scheduled over five year period; cost of effort through 2000 $500,000. Estimated project costs: $2,800,000 through 2000 Financial partners: PH-2 Establish water quality standards for saltwater beaches • The SWFWNID, Pinellas County Tourism Board, Florida Department of Health and TBEP are jointly funding a project to provide baseline information on potential sources and loadings of microbial pathogens within the Tampa Bay watershed and Gulf beaches, and to evaluate the use of a variety of human health indicators for the Tampa Bay region. This project, entitled "Healthy Beaches Tampa Bay", was initiated in March 1999. EPCHC, the City of Tampa, the City of Clearwater, Pinellas County, will take part in a committee to review standards, parameters and sampling techniques. In addition, EPCHC's monitoring program may be modified to accommodate recommendations of the committee, provided that funding or logistics do not become a problem. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: PH-3 Install additional pump-out facilities for recreational boaters and live-aboard vessels • The City of Clearwater has constructed and will continue to maintain sewage pump-out facilities at its Marina. Clearwater's marina has 210 boat slips and approximately 70 sewage pump-out stations. All boats which use the marina either have a dedicated pump-out line or access to one. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: BH-1 Implement the Tampa Bay Master Plan for Habitat Restoration and Protection • The City of Clearwater will complete the restoration of Coopers Point Park in cooperation with the State and by agreement with Pinellas County. Year 2000 updates/revisions: See WQ-1 Cooper's Point Restoration Estimated project costs: Financial partners: BH-2 Establish and Implement Mitigation Criteria for Tampa Bay • At the request of TBNEP, the Tampa Bay RPC's Agency on Bay Management established a Task Force to investigate the standards and guidelines currently used by permitting agencies for approving mitigation banks. After approximately ei�ht months of discussion and evaluation, the Task Force adopted criteria for accomplishing the restoration goals of the CCMP for mitigation in the Tampa Bay area. The recommended criteria, following clarification by the TBEP TAC, was approved by the TBEP Management and Policy Board potential adoption into local regulation in March 1999. Because these criteria are specific for the Tampa Bay area, and are in addition to statewide requirements, local governments will need to consider how to best implement the recommendations. The City of Clearwater will continue to support the TBEP's efforts to establish mitigation criteria for Tampa Bay and to identify potential priority sites for investigation. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: BH-3 Reduce propeller scarring of seagrass Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: BH-4 Restrict impacts to hard-bottom communities in Tampa Bay Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: BH-5 Improve management of parking and vehicle access along causeways and coastal areas Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: BH-6 Encourage waterfront homeowners to enhance shorelines and limit runoff Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: BH-7 Improve compliance with and enforcement of wetland permits • The City of Clearwater has reorganized the Public Works Department to provide better service delivery and improved compliance related to environmental permitting. The City is currently working with FDEP on wetland compliance strategies, and does not have a specific completion or implementation date. Year 2000 upd�tes/revisions: On�oing Estimated project costs: Financial parh�ers: lU BH-8 Expand habitat mapping and monitoring programs Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: FI-1 Establish and maintain minimum seasonal freshwater inflow Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: FW-1 Increase on-water enforcement of environmental regulations on the bay • Consultation with TBEP partners, regulators and marine enforcement officials dictates that attempting to re-allocate revenues from the Salt Water Fishing License to increase the law enforcement allotment is not advisable at this time. Therefore, TBEP staff is proposing to explore the potential of creating a volunteer force of boaters who will patrol the bay and provide educationa) information to boaters potentially violating regulations or harming natural resources. This volunteer corps could be similar to, or part of, the Florida Marine Patrol's "Coastwatch" program. Tampa BayWatch is proposed as a potential leader for this program, if accepted by the Management Board. Year 2000 updates/revisions: N/A Estimated project costs: Financial partners: FW-2 Manatee Protection Zones • The City of Clearwater has posted manatee protection zones and citizen education displays at selected Marina locations. Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: FW-3 Support Bay Scallop Restoration Year 2000 updates/revisions: Ongoing Estimated project costs: Financial partners: FW-4 Assess the need to investigate the cumulative impacts of power plant entrainment on fisheries • Step 1 of this action calls for TBEP participation in a national effort to address power plant entrainment issues. An EPA workgroup is assessing environmental impacts associated with power plants preparatory to re�ulatory action. EPA will propose a rule to address this matter. � � A portion of the proposed regulations will address the cumulative impacts of multiple facilities � in adjoining areas. EPA Region IV has proposed that Tampa Bay be considered as a case study on the � cumulative impacts of power plants. If this study is approved, a locally financed study will not be necessary. Therefore, TBEP will forego further discussion of this step pending a decision � on a federal study. N/A FW-5 Continue and expand the Critical Fisheries Monitoring Program N/A � DR-1 Develop a long-term dredging and dredged material management plan for Tampa Bay N/A � SP-1 Establish an integrated ship tracking system for the bay and permanently fund the PORTS system N/A SP-2 Develop detailed spill response plans for priority areas Updates/revisions: N/A Estimated project costs: Financial partners: SP-3 Improve fueling and bilge-pumping practices among recreational boaters Updates/revisions: N/A Estimated project costs: Financial partners: Public Involvement and Education Updates/revisions: Estimated project costs: Financial partners: 12 � � A endix i pp Stormwater Subelement - Clearwater Com prehensive Plan � Goals. Obiectives and Policies Utilities � Stormwater Management Needs Summary L_.] The following summarizes the Stornlwater Management Sub-Element: � • The City of Clearwater needs to continue to monitor the stormwater management utility fee rate structure and amend it as required to remain competitive and maintain an adequate funding source to � provide revenue for flood control, maintenance, retrofitting, and treatment of stormwater. In addition to the hydraulic improvements, this would improve the quality of stormwater discharging into surface waters, and will complement the measures proposed in the Surface Water Improvement and � Management (SWIM) program and the Tampa Bay National Estuary Program to improve surface water quality standards. � • The City of Clearwater needs to take advantage of any alternative funding opportunities that may become available from any State agency with regard to watershed management and/or general stormwater improvements. � • The City of Clearwater needs to continue to reduce flooding problems and strive for abatement of flood damage to houses and streets. � • The City of Clearwater needs to continue to coordinate stormwater management improvement efforts with Pinellas County and other incorporated areas adjacent to Clearwater City limits for both water ,,,,, quality and attenuation. • The City of Clearwater needs to continue to maintain, correct deficiencies and improve, where necessary, current levels of service. Maintenance and improvement of the City stormwater management system must be recognized as a service provided by the City on a regular and continuous basis. • The City of Clearwater needs to continue to prepare stormwater management plans which will identify � and pnoritize the implementation of programs to improve and enhance stormwater quality and quantity. • Natural and man-made wetlands need to be utilized for stormwater storage and protected as natural � resources. Wetlands provide a natural wildlife habitat and groundwater recharge functions which are pivota.l characteristics of the natural and urbanized environment. Such features are firmly established � within Clearwater's quality of life values. • The City of Clearwater must continue to obtain appropnate permits from all environmental regulatory agencies prior to implementation of water resource projects. � The City of Clearwater needs to research and develop new methods that are technically, environmentally, and economically viable of treating stormwater runoff before final discharge to improve and enhance local surface waters. � � D-13 Goals, Objectives and Policies Utilities � � • The city needs to proceed forward in its plannuig, design and engineering of the proposed downtown lake which has been included in the City's twenty year powntown Redevelopment Plan. The proposed lake will serve as a basin for stormwater attenuation and water quality management, as well as enhancing the aesthetic beauty of the downtown area. • The City of Clearwater needs to continue to participate in the National Flood Insurance Program's � Community Ra.ting System (NFIP/CRS). Clearwater has been an active participant since 1990. � � � �� I � D-14 � � Goals, Objectives and Policies Utilities GOALS, OBJECTIVES AND POLICIES � 16. GOAL - PROVIDE THE MOST COST EFFECTIVE AND EFFICIENT PROVISION OF STORMWATER MANAGEMENT INCLUDING THE IMPROVEMENT AND � ENHANCEMENT OF STORMWATER QUALITY DISCHARGING INTO LOCAL RECEIVING WATERS, AND PROVIDE MAXIMUM PRACTICAL PROTECTION TO PERSONS, PROPERTY, AND THE NATURAL ENVIRONMENT. � � �� I 16.1 Policies Objective - To maintain adequate levels of service for ezisting and future populations through the year 2010. 16.1.1 The following Level of Service standards have been established for the City of Clea.rwater and shall be used in determining the availability of facility capacity and the demand created by new development and shall be applied to all new development, redevelopment, and for all City facilities through 2010. Service Level of Service Standards Stormwater Management Design storm facilities 10 - year storm frequency for all new street development using the rational design method. 25 - year storm frequency with positive outfall for major storm systems with basin time of intensities controlling the duration. * 50 - year storm frequency when no outfall and discharge is to street right-of-way. * 100 - year storm frequency when no outfall and discharge is across private property.* * Design standards for stormwater quality treatmenUstorage quantity shall conform to the current SWFWMD requirement [Presently being tlie SCS Unit Hydrograph design method, using the design storm frequency and a twenty-four (24) hour duration for sites ten (10) acres or more, and the rational design method for sites under ten (10) acres]. 16.2. Objective -The City of Clearwater shall continue to develop watershed management plans which should seek to identify, evaluate and implement the most cost effective and cost efficient programs for stormwater management, including stormwater quantity and quality. These plans should also address any projects included in the Pinellas County Stormwater Management Plan (SWMP) for the implementatio� of all stormwater management, as weli as recommended funding sources. D-15 Goals, Obiectives and Policies Utilities Policies 16.2.1 Coordinate and cooperate with appropriate local, State, regional, and Federal agencies implementing the Pinellas County and City of Clearwater stormwater management plans. 16.2.2 Continue to Provide a stormwater management system throughout the City that will afford the most economically feasible protection to residents and property. 16.2.3 All stormwater management improvements should seek to meet applicable goals, guidelines, and regulations established to provide flood protection and pollution abatement. 16.2.4 Participate in interlocal agreements to study and evaluate stormwater quality and stormwater runoff management issues. 16.2.5 Coordinate and cooperate with Southwest Florida Water Management District policies and regulations. 16.2.6 Continue to require new development to detain water on site and control quantity, quality, and rate of flow being released into the receiving drainage systems. 16.3 Objective - Lower highwater profiles during storm events, as necessary, to reduce house flooding occurrences and to lessen the resulting adverse effects on public health, the natural environment, public and private property. Policies 163.1 Continue to provide a program of regular maintenance to the stormwater management system to ensure maximum efficiency and performance. Ensure that stormwater management plans include measures to remove trash, sedimenta.tion and other debris which impede flow and incorporate structural and non-structural measures to reduce or eliminate the discharge of oil, grease, heavy metals, and other suspended particles into the stormwater management systems. 16.3.2 Natural and man-made wetlands shall be considered as a means to provide stormwater management wherever possible and shall be maintained for hydrologic purposes. The efficiency of natural and man-made systems to convey stormwater runoff shall be protected through the provision of routine water quality maintenance schedules overseen by city inspections. 16.3.3 Continue to provide multiple use facilities, such as recreational open space uses, with open channel stormwater management systems, when appropriate. 16.3.4 Development and redevelopment activities shall comply with all stormwater management design standards and criteria. D-16 � Goals, Obiectives and Policies Utilities � 16.3.5 Structural Development shall be prohibited where it is deternuned that such � development will have an adverse impact on stormwater storage areas, increase flood prone areas, significantly increase rates of runoff, or cause other unfavorable drainage conditions. Both man-made and natural systems shall be treated on an � equal basis as a sensitive preservation area; no distinction shall be made between a natural system and a man-made or man altered hydrologic system. � � � 16.3.6 Prohibit new building, development or construction that will result in building(s) constructed within/or over stormwater retention/detention ponds, streams or channels. All wetlands, streams, channels, or other hydrologic features, whether wetlands, ponds or bodies of water having intrinsic hydrologic, biologic and zoological functions with no distinction made in regard to its status to whether it is man-made or natural shall be considered for a Preservation Land Use Plan classification to ensure protection from development. 16.3.7 Continue active participation and cooperation with the National Flood Insurance � Program and the Florida Emergency Management Agency for the purpose of recognizing flood prone areas, and establishing abatement programs that endeavor toward a reduction in damages and losses due to flooding. � � � � 16.3.8 Continue the established requirement of a twenty-five foot setback from the tops of a bank from all wetlands whether natural or man-made, and require finished floor elevations in areas adjacent to lakes, bays, creeks, the Gulf of Me�cico, Tampa Bay and Old Tampa Bay, and other flood prone areas. 16. 4 Objective Continue the implementation of the most cost effective and efficient plan to reduce the occurrence of street flooding where safety issues and traffic pro6lems exist as prioritized and set forth in the Capital Improvement Element, and listed in the stormwater management plans. Policies 16.4.1 Identify areas where inadequate stormwater management easements exist, and obtain proper access to stormwater management channels, structures and appurtenances for maintenance purposes. 16.4.2 Improve all street stormwater management systems where deficiencies exist. 16. 5 Objective - Protect and enhance the quality of receiving waters by the use of "Best � Management Practices" in accordance with the adopted watershed management plans. � � D-17 Goals, Objectives and Policies Utilities Policies 16.5.1 The use of "Best Management Practices" shall be required before, during, and after construction activities to prevent water pollution resulting from erosion and siltation. 16.5.2 Vegetated swales, sodding, and appropriate landscaping will be required as components of the drainage system for natural filtration before final discharge into receiving waters. 16.5.3 Monitor major stormwater management outfalls and receiving water bodies to identify the quality of stormwater runoff and the impact on receiving bodies. 16.5.4 Maximize water recharge potential in designing stormwater management improvements by utilizing natural wetland areas for stormwater storage. 16.5.5 Coordinate stormwater management improvements with other local govemments to assist in solving stormwater management problems of an eatratemtorial nature 16.5.6 Continue to Identify impaired bodies of water and prioritize them for improvement and enhancement. 16.5.7 Water resource projects shall be consistent with the policies of the Conservation Element and with adopted watershed management plans. 16.5.8 All stormwater management plan projects of the City of Clearwater shall comply with the Florida Surface Water Improvement and Management (SWIM) program and the National Estuary Program. 16.59 The City of Clearwater shall continue to upgrade and retrofit City-owned drainage system facilities and include stormwater treatment for water quality in accordance with the proposed stormwater management plan. 16. 6 Objective - Continue to Provide sound fiscal management of the stormwater management systems to include maintenance, operation, and construction in accordance with the watershed management plans and concurrent with its implementation. Policies 16.6.1. Operation and maintenance of the stormwater management systems may be financed through revenues supporting the City's general fund or as otherwise funded as a utility operation. D-18 � Goals, Objectives and Policies Utilities � 16.7 Policies � � Objective - Provide economic development incentives that promote water resource protection and enhancement. 16.7.1 Methods of financing stormwater management system improvements and new stormwater infrastructure construction should be evaluated to determine the most feasible and equitable arrangement, both city-wide and in local problem areas. 16.7.2 The City of Clearwater shall continue to seek and be on notice of financial � support for system improvements through grant programs administered by appropriate State and Federal agencies. � 16.7.3 The City of Clearwater shall pursue a system of regional stormwater management which is both economically and environmentally sound. � 17. GOAL - DISCHARGES OF STORMWATER SHALL BE MANAGED TO PROVIDE � FLOOD PROTECTION FOR THE CITIZENS OF THE CITY OF CLEARWATER AND TO PRESERVE, PROTECT, AND ENHANCE THE WATER QUALITY OF RECEIVING WATERBODIES. � � � �� L�.J 17.1 Policies Objective - The protection, restoration, and enhancement of water quality associated with stormwater runoff will be considered a function of the City's overall stormwater management plans. 17.1.1 The City shall incorporate water quality protection and enhancement criteria into the City stormwater management plans. 17.1.2 The use of natural alternatives, the conservation of natural stormwater management systems, and the protection and improvement of the quality of receiving waters shall be a goal of the City's stormwater management plans. 17.1.3 Management plans shall continue to be developed on an ongoing basis for waterbodies with known or suspected water quality problems in the City to include Tampa Bay, Clearwater Harbor, Stevenson Creek, Allen's Creek, and Alligator Creek. 17.1.4 The City shall systematically and timely prepare watershed or waterbody specific management plans for waterbodies within the Cit}�. Such plans shall include both water quality and flood control considerations and recommended funding sources. D-19 Goals, Objectives and Policies Utilities 17.1.5 The City shall implement all City-approved watershed management plans. 17.1.6 All City stormwater management plan projects within watersheds of The City shall comply with applicable SWIM Plans for that waterbody or watershed. 17.1.7 The City shall continue to coordinate with and supplement the County's surface water monitoring program. D-20 A endix J pp Su bstantial Im provement Application •� CITY OF CLEARWATER � � �''' ` Plannin D Q g & evelopment Services � � �. �100 SOUTH MYRTLE AVENUE, ROOM 210 9� TE F� CLEARWATER, FL 33756 _ PHONE (727) 562-4567 FAX (727) 562-4576 �` APPLICATION FOR SUBSTANTIAL DAMAGE/IMPROVEMENT REVIEW � Parcel Number: � Property Address: Owner's Name: � Co-Owner's Name: Owner's Mailing Address: � Owner Phone Number: � FIRM Panel: Flood Zone: Lowest Floor Elevation (excluding garage): � I am attaching an appraisal report of my property, or _ I am not submitting an appraisal report of my properry I accept the County's Estimated Market Value. BFE: initials initials initials � I accept the attached estimated cost of construction as a fair cost of repair or improvement for my home. initials � SIGNATURES � � � � Owner: Co-Owner: Contractor: Date: Date: Date: CLEARWATER One Clty. One Futurn. Bnan J. Aungst, Mayor-Commissioner Ed Hooper, Vice Mayor-Commissioner Bob Clark, Commissioner Ed Hart, Commissioner J.B. Johnson, Jr., Commissioner REV. 3-99 � SUBSTANTIAL IMPROVEMENT/DAMAGE NOTICE TO PROPERTY OWNERS Rebuilding your home after the storm? Adding on, renovating, or remodeling your home? Here's information YOU need to know about the SO% Rule. � � If your home or business is below the 100-year flood elevation, Clearwater has flood damage prevention regula- � tions that may affect how you remodel, renovate, or add on to your building. If your home or business sustained structural and/or interior damage, these regulations may affect how you rebuild. These laws are required by the � National Flood Insurance Program to protect your lives and investment from future flood damages. Your commu- nity must adopt and enforce these laws in order for federally-backed flood insurance to be made available to � community residents and property owners. Inform yourself and save time, aggravation, and money. Please read the following information. � �UBSTANTIAL DAMAGE means damage of the origin sustained by a structure whereby the cost of restoring the structure to its before damage condition would equal or exceed 50 percent of the market value or replacement �' Cost of tl'le StrllCtllie befOl'e ttle dairilge oCClliiCd. (Note: the cost of the repairs must include all costs necessary to fully repair the structure to its before-damage condition.) SUBSTANTIAL IMPROVEMENT means any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds 50 percent of the market value of the structure before the "start of construction" of the improvement. � ,� If a building is "substantially damaged" or "substantially improved", it must be brought into compliance with Clearwater's flood damage prevention regulations, including elevating the building to or above the 100-yeaz flood � elevation. Clearwater, following National Flood Insurance Program requirements, has the responsibility to determine "sub- � stantial damage" and "substantial improvement" and has implemented the following procedure to do so: 1) Planning & Development Services will estimate Mazket Value by using the tax assessment value of your �� structure (excluding the land). If you disagree with this estimate of Market Value, you may hire a state licensed appraiser and submit a� comparable property appraisal for the depreciated value of the structure. 2) You must submit to Planning & Development Services a detailed and complete cost estimate for the addition, remodeling, reconstruction or repair of all the damages sustained by your home, prepared and signed by a licensed general contractor. The contractor and you must sign separate reconstruction/improvement a�davits indicating that the cost estimate submitted includes all damages or all improvements to your home, not just structural. Planning & Development Services will evaluate the cost of improvements or repairs and determine if they are � � �� fair and reasonable. For damage repairs, pre-storm pnces and rates will be ut�lized. The cost of improvements or repairs does not include items not considered a permanent part of the structure. ��.e., Plans, surveys, ��►;c�, � sidewalks, pools, screens, gazebos, fences, etc.) (See attached copy.) �� Substantiallmprovement/Damage � � � � � � 2 3) If your home is in the designated flood zone, then an Elevation Certificate must be submitted to deternune the lowest flood elevation. Garages and carports are not considered the "lowest floor" 4) Substantially damaged or substantially improved structures with the lowest floor below the 100-year flood elevations are required to be elevated to or above that level. Likewise, all electrical and mechanical equipment (heating and cooling, etc.), bathrooms, and laundry rooms must be elevated to or above the 100-year flood level. Only parking, building access, and limited, incidental storage is allowed below the flood level. Non- residential buildings may be "flood-proofed" instead of being elevated. If the lowest floor, electrical and mechanical, equipment, laundry and bathroom are already above the 100- year flood elevation, the building can be repaired and reconstructed without further modifications. 5) Building plans must be prepared to show how the building is to be elevated. These plans must be prepared and certified by a registered professional engineer or architect. Certificates for this purpose are available from the Building O�cial. 6) Following a Presidential disaster declaration, the Small Business Administration may make loans available for both homes and businesses for purposes of elevating the structure to or above the 100-year flood elevation. Proof of "substantial damage" from Clearwater Planning & Development Services is required. � ITEMS TO BE INCLUDED All structural elements including: � Spread or continuous foundation footings and pilings Monolithic or other types of concrete slabs � � � � � LJ r� �I � � � Bearing walls, tie beams and trusses Wood or reinforced concrete decking or roofing Floors and ceilings Attached decks and porches Interior partition walls Exterior wall finishes (e.g., brick, stucco, or siding) including painting and decorative moldings. Windows and doors Reshingling or retiling a roof Hardware All interior finish elements, including: Tiling, linoleum, stone, or carpet over subflooring Bathroom tiling and fixtures Wall finishes, e.g., drywall, painting, stucco, plaster, paneling, mazble, or other decorative finishes. Kitchen, utility and bathroom cabinets Built-in bookcases, cabinets, and furniture Hardwaze All utility and service equipment, including: HVAC equipment Repair or reconstruction of plumbing and electrical services Light fixtures and ceiling fans Security systems Built-in kitchen appliances Central vacuum systems Water filtration, conditioning or recirculation systems Substantial ImprovemenUDamage Also: Labor and other costs associated with demolishing, removing or altering building components Overhead and profit ITEMS TO BE EXCLUDED 3� � Plans and specifications � Survey costs Permit fees � Debris removal (e.g., removal of debris from building or lot, dumpster rental, transport fees to landfill and landfill tipping fees), and clean-up (e.g., dirt and mud removal, building dry out, etc.) � Items not considered real property such as: throw rugs (carpeting over finished floors), furniture, refrigerators, - stove not built-in, etc. ,�' Outside improvements, including: Landscaping Sidewalks Fences Yazd lights Swimming pools Screened pool enclosures Sheds Gazebos . Detached structures (including garages) Landscape irrigation systems � � � ITEMS REQUIRED TO DETERMINE SUBSTANTIAL DAMAGE APPLICANT MUST SUBMIT THE FOLLOWING (Make sure you have extra copies for your files) 1) Completed application � 2) Detailed Cost of Improvement/Reconstruction Estimate and affidavit, signed by a general contractor and a copy of his license certificate � 3) Elevation certificate 4) Curtent photos, or photos before and after the storm (if a�a►�abte� � 5) Existing floor plan drawing ��'a��ab�e� � 6) Owner's reconstruction/improvement �davit signed and dated � 7) Contractor's reconstruction/improvement �davit signed and dated �� GUIDELINES TO COMPLETE THE ATTACHED RECONSTRUCTION/IMPROVEMENT COST ESTIMATE Reconstrucdon/Repair = Percentage of item that must be repaired or reconstructed. (Example: The home has 20 windows, only 10 were damaged and being replaced; ratio should equa150R6) COST ITEMS RecoNRepair Official Ratio of Work Labor + Materials Use Concrete, Form, ETC $4,500.00 40% Carpentry Material (r) $9,004.00 100% Doors/Windows, Shutters $2,046.00 50% ARCHITECT/ENGINEER � RECONSTRUCTION/IMPROVEMENT AFFIDAVIT �� PARCEL #: / / / / / PROPERTY ADDRESS: ARCHITECT NAME: LICENSE #: � ADDRESS: PHONE: � I have reviewed the contractor's list of work to be done with the plans prepared by my office. The list accurately reflects the scope of work indicated on my plans and specifications. The proposed estimated cost is in line with � current average industry standards for the work reflected in my plans and specifications. �I ArchitectlEngineer's Signature �, STATE OF FLORIDA COUNTY OF PINELLAS PERSONALLY APPEARED before me, the undersigned authority, and acknowledged that (he) (she) did execute the foregoing Affidavit. SWORN TO AND SUBSCRIBED before me this day of , Notary Public-State of Florida L� � � My Commission Expires: i � ESTIMATED COST OF RECONSTRUCTION/IMPROVEMENT PARCEL #: / / /. Address: , � This Cost Estimate of Reconstruction/Improvement must be prepared and signed by a licensed General Contractor. COST RecoNRepair Official ITEMS Ratio of Work Labor + Materials Use Concrete, Form, ETC Carpentry Material (rough) Carpentry Labor (rough) Roofing Insulation & Weather Strip Exterior Finish (stucco) Doors, Windows & Shutters . Lumber Finish Carpenter labor, finish Hardware, (finish) Hardware, (rough) Cabinets (built-in) Floor covering (tile/rug) Plumbing ShowerrfublToilet Electrical Light Fixtures Built-in Appliances HVAC Paint Demolition and Removal Overhead and Profit TOTAL (Please attach any additional information) Contractor Name: Contractor Lic. #: Address: Phone #: Signature: Date: CONTRACTOR RECONSTRUCTION/IMPROVEMENT AFFIDAVIT PARCEL #: / / / / / � � Property Address: � Contractor Name: License #: Address: � Phone: � I attest that I, or a member of my staff, personally inspected the above mentioned property and produced the attached itemized list of repairs, reconstruction and/or remodeling. This list is submitted for a Substantial Dam- age or Improvement Review. These damages/improvements are ALL OF THE DAMAGES/IlVIPROVEMENTS sustained by this structure, and that all additions, improvements, or repairs proposed on the subject building are included in this estimate. I understand that I am subject to enforcement and penalties if an inspection of the property reveals that I have made repairs or improvements NOT INCLUDED ON Ti-� ATTACHED LIST. This includes any non-confornung or illegal structures/addition, or repairs made to the existing structure without having presented plans for such work. I understand that any permit issued by the City of Clearwater pursuant to this �davit does not authorize the reconstruction, repair or maintenance of any illegal additions, fences, sheds or non-conforming uses or structures on the subject property. See Attached Itemized List Total Labor and Materials Overhead & Profit Total Cost STATE OF FLORIDA COUNTY OF PINELLAS $ $ � ►_� y y i7�%1111 Before me this day personally appeared who, being duly sworn, deposes and says that he/she has read, understands, and agrees to comply with all of the � aforementioned conditions. Contractor's Signature Sworn to and subscribed before me this My commission expires day of Date: � A.D., � � Notary Public - State of Florida � � � � � OWNER RECONSTRUCTION/IMPROVEMENT AFFIDAVIT PARCEL #: / / / / / Property Address: � Contractor Name: License #: Address: Phone: � I attest that the repairs/reconstruction and/or remodeling list and plans submitted by my contractor for review and � permit are complete and include ALL OF TF� DAMAGES/IlViPROVEMENTS proposed for this structure. The list and plans showing all additions, improvements, or repairs on this building are included in this estimated �construction cost. No other contractor made or will make any repairs, reconstruction, additions or remodel- ing which are not included in the attached list and plans. �I understand that I am subject to enforcement and penalties if an inspection of the property reveals that I have made repairs or improvements NOT INCLUDED ON TI� ATTACHED LIST. This includes any non-confornung or illegal structures/addition, or repairs made to the existing structure without having presented plans for such work. �I understand that any permit issued by the City of Clearwater pursuant to this �davit dces not authorize the reconstruction, repair or maintenance of any illegal additions, fences, sheds or non-conforming uses or structures on the subject property. � STATE OF FLORIDA � COUNTY OF PINELLAS � � � � � � � AFFIDAVTT Before me this day personally appeared who, being duly sworn, deposes and says that he/she has read, understands, and agrees to comply with all of the aforementioned conditions. Owner's Signature Co- Owner's Signature Sworn to and subscribed before me this My commission expires day of Date: Date: A.D., Notary Public - State of Florida � � � � � � � � � i � � � � �� A endix K pp Flood Complaint Process � � � V � O w � V � � � V � � A � � E� � � � � O U Q � O w � � . ,.� c� ..-� � � O U � c� � � � 0 0 � � M N � 00 � � � N a� � � � � Q � � � i.� .d � CC3 � .D � � 'b c� � � � � � � .O � U � � � c� � .� � O � � � U •� �--, � . L� � � �� O � � � � '� � U � � � � � � � �� U � O � � �� O � � U '�� i �3 0� Q � a � � N o � `O O � � � � � � � � � � � .� � � � � . 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