Fort Walton Beach Council agenda — 01-24-12 special ldc — reading text

flood in L nci..... mental ... pagc3 - 6 Ile cc Sober I5, 2011 Packet Pg. 60  3. 1. a I ,,I V,A..n Reach FIN ki, DII kF" I I.: oW De, dolmical Cnde accordance with Section 3. 01. 07. H( 1). 3. 01. 08 Requirements for Streams without Established Base Flood Elevation and Floodways Located within the areas of special flood hazard established in Section 3. 01. 05, where there exist A Zones for which no base flood elevation data and regulatory floodway have been provided or designated by the FEMA, the following provisions shall apply: A. Require standards of Section 3. 01. 07. m B. Require that all new subdivision proposals and other proposed developments o including proposals for manufactured home parks and subdivisions) greater than fifty 7 50) lots or five ( 5) acres, whichever is the lesser, include within such proposals base flood elevation data. Standards set forth in Section 3. 01. 07 shall apply. v C. The Development Administrator shall obtain, review, and reasonably utilize any base tj flood elevation and floodway data available from a Federal, State, or any other a source, in order to administer the provisions Section 3. 01. 00. When such data is utilized, provisions of Section 3. 01. 07 shall apply. The Development Administrator o n shall: a L Obtain the elevation ( in relation to the mean sea level) of the lowest floor including the basement) of all new and substantially improved structures; m 2. Obtain, if the structure has been floodproofed in accordance with the requirements of Section 3. 01. 07, the elevation in relation to the mean sea level to which the m structure has been floodproofed; and 3. Maintain a record of all such information. D. Assure that the flood carrying capacity within the altered or relocated portion of any m watercourse is maintained. E. Manufactured homes shall be installed using methods and practices that minimize flood damage. They shall be elevated and anchored to prevent flotation, collapse, and r, lateral movement. Methods of anchoring may include, but are not limited to, use of r over -the -top or frame ties to ground anchors. This requirement is in addition to applicable State and local anchoring requirements for resisting wind forces. m F. When the data is not available from any source the lowest floor of the structure shall be elevated to no lower than above the highest adjacent grade. Standards set forth in of Section 3. 01. 07 shall apply. 3. 01. 09 Standards for Areas of Shallow Flooding (AO Zones) Located within the areas of special flood hazard established in Section 3. 01. 07 are areas designated as shallow flooding areas. These areas have flood hazards associated with base flood depths of one ( 1) to three ( 3) feet, where a clearly defined channel does not exist and the path of flooding is unpredictable and indeterminate. Therefore, the following provisions shall apply in addition to the provisions set forth in section 3. 01. 07: A. All new construction and substantial improvements of residential structures in all AO Zones shall have the lowest floor, including basement, elevated above the highest adjacent grade at least as high as the depth number specified in feet on the Flood Insurance Rate Map. If no flood depth number is specified, the lowest floor, including basement, shall be elevated to no less than two ( 2) feet above the highest adjacent grade. ICns7ronnu•w al P' w"' imi Pag' A - -, 1) ... er 75. 2011 Packet Pg. 61  3. I. a Fort v,AIlnn neaNi IIS:V. DR AFI I. anA B. All new construction and substantial improvements of non -residential structures shall: 1. Have the lowest floor, including basement, elevated above the highest adjacent grade at least as high as the depth number specified in feet on the Flood Insurance Rate Map. If no flood depth number is specified, the lowest floor, including basement, shall be elevated to at least two ( 2) feet above the highest adjacent grade; or 2. Together with attendant utility and sanitary facilities be completely floodproofed in compliance with the standards set forth in Section 3. 01. 07. 13. C. Adequate drainage paths around structures shall be provided on slopes to guide water away from structures. D. Fully enclosed areas below the lowest floor that are subject to flooding shall meet the non- elevation design requirements of Section 3. 01. 07. 3. 02. 00 ENVIRONMENTALLY SENSITIVE LANDS AND HABITATS 3. 02. 01 Wetlands and Shoreline Protection A. The natural function of wetlands within the City shall be protected. Potential wetlands are identified in the Comprehensive Plan; however, final delineation shall be established by an independent survey conducted in accordance with the methodology set forth in the Florida Statutes. The applicant may request that the delineation survey be conducted by the City. A fee is established in the City fee schedule for such delineation survey. 1. Wetlands shall not be removed, altered, or destroyed, except where permitted and mitigated as required by the Florida DEP, NWFWMD, and the U. S. Army Corps of Engineers. Proof of permit shall be provided to the City. Areas approved for mitigation shall be protected through a conservation easement with the City as a party to the casement. 2. A de minimus exemption may be granted by the Florida DEP, NWFWMD, and the U.S. Army Corps of Engineers. Where exempted, proof of exemption shall be provided to the City. 3. Where an applicant is exempt from permitting requirements of the State of Florida or the U. S. Army Corps of Engineers, the City shall determine whether a local permit is required to protect the natural function of wetlands. The permit requirements are set forth in Chapter 9. B. Setbacks required 1. Principal buildings and all site development shall be setback from wetlands and water bodies a minimum of ten ( 10) feet. 2. Within the required setback the following activities are permissible: a. Marinas; b. Piers; c. Boardwalks; d. Walking trails; e. Riprap, but not shoreline armoring; I. Installation of buoys or other aids to navigation; g. Fences; It. Bridges, both pedestrian and vehicular; or i. Docks. P. urironEnental rnacctiun Pn Ct' 8 14. 2011 Packet Pg. 62.  3. 1. a 11, 1 wAlo, Bach IIN. AL DR 1F 1 Land Dccvlopmcnt Code 3. Development activity which is determined by the City to be water dependent or water related may be allowed. 4. Native vegetation located within the required setback on estuarine shorelines shall be protected. Where removal of native vegetation is permissible, replacement of such vegetation shall be required. 3. 02. 02 Habitat Protection A. It is the purpose of this section to provide standards necessary to protect the habitats of species, both flora and fauna, of endangered, threatened, or special concern status in the City. It is the intent of this section to require that an appropriate amount of land shall be set aside to protect habitat of rare, endangered, or special concern plant and animal species. B. Areas subject to the standards of this section shall be those identified in the Comprehensive Plan as habitat for rare and endangered species, threatened species, or species of special coneem. C. A habitat management plan shall be prepared as a prerequisite to the approval of any development proposed on a site containing areas subject to this section. The habitat management plan shall be prepared by an ecologist, biologist, or other related professional. The plan shall document the presence of affected species, the land needs of the species that may be met on the development site, and shall recommend appropriate habitat management plans and other measures to protect the subject wildlife. D. A site development plan for a site containing protected habitat shall not be approved except in compliance with the requirements for habitat protection set forth in the habitat management plan. Where land is set aside as protected habitat, such land shall be adjacent to existing viable habitat, a wetland, floodplain, or wildlife corridor, except when such locations are not available. 3. 03. 00 WELLHEAD PROTECTION 3. 03. 01