Legal Documents of Gatlinburg

1. One foot (1') above the base flood elevation as established by the applicable FIRM and FIS; or

2. The "With (500-year) Floodway, Water Surface Elevation" as established by the adopted TVA Flood Report, TVA/OECD/FPM-82/20, when provided; or one foot (1') above the 500-year flood elevation where "With Floodway" elevations are not provided by said report.

   Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate equalization of flood hydrostatic forces on both sides of exterior walls shall be provided in accordance with the standards of this section: "Enclosures."

   Within flood hazard areas where flood elevations have not been established and where alternative data is not available, the administrator shall require the lowest floor of a building to be elevated to a level of at least three feet (3') above the highest adjacent grade (as defined in § 14-304). Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate equalization of flood hydrostatic forces on both sides of exterior walls shall be provided in accordance with the standards of this section: "Enclosures."

Non-residential structures. Within all flood hazard areas where flood elevation data is available, new construction and substantial improvement of any commercial, industrial, or non-residential building, shall have the lowest floor, including basement, elevated or floodproofed to no lower than one foot (1') above the level of the base flood elevation (100-year flood elevation). Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate equalization of flood hydrostatic forces on both sides of exterior walls shall be provided in accordance with the standards of this section: "Enclosures."

Within flood hazard areas where flood elevations have not been established and where alternative data is not available, new construction and substantial improvement of any commercial, industrial, or non-residential building, shall have the lowest floor, including basement, elevated or floodproofed to no lower than three feet (3') above the highest adjacent grade (as defined in § 14-304). Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate equalization of flood hydrostatic forces on both sides of exterior walls shall be provided in accordance with the standards of this section: "Enclosures."

Non-residential buildings located in all flood hazard areas may be floodproofed, in lieu of being elevated, provided that all areas of the building below the required elevation are watertight, with walls substantially impermeable to the passage of water, and are built with structural components having the capability of resisting hydrostatic and hydrodynamic loads and the effects of buoyancy. A Tennessee registered professional engineer or architect shall certify that the design and methods of construction are in accordance with accepted standards of practice for meeting the provisions above, and shall provide such certification to the administrator as set forth in § 14-306(2).

1. Designs for complying with this requirement must either be certified by a Tennessee professional engineer or architect or meet or exceed the following minimum criteria:
   
   1. Provide a minimum of two (2) openings having a total net area of not less than one (1) square inch for every square foot of enclosed area subject to flooding;
   2. The bottom of all openings shall be no higher than one foot (1') above the finished grade;
   3. Openings may be equipped with screens, louvers, valves or other coverings or devices provided they permit the automatic flow of floodwaters in both directions.
2. The enclosed area shall be the minimum necessary to allow for parking of vehicles, storage or building access.
3. (skipped)
4. The interior portion of such enclosed area shall not be finished or partitioned into separate rooms in such a way as to impede the movement of floodwaters and all such partitions shall comply with the provisions of § 14-307(2).

1. All manufactured homes placed, or substantially improved, on:
   
   1. Individual lots or parcels;
   2. In expansions to existing manufactured home parks or subdivisions; or
   3. In new or substantially improved manufactured home parks or subdivisions, must meet all the requirements of new construction.
2. All manufactured homes placed or substantially improved in an existing manufactured home park or subdivision must be elevated so that either:
   
   1. The lowest floor of the manufactured home is elevated on a permanent foundation in accordance with subsection (2)(a) (residential structures) of this section in all flood hazard areas with flood elevations; or
   2. In flood hazard areas without flood elevations, the manufactured home chassis is elevated and supported by reinforced piers (or other foundation elements of at least equivalent strength) that are at least three feet (3') in height above the highest adjacent grade (as defined in § 14-304).
3. Any manufactured home, which has incurred "substantial damage" as the result of a flood, must meet the standards of § 14-307(1) and (2).
4. All manufactured homes must be securely anchored to an adequately anchored foundation system to resist flotation, collapse and lateral movement.
5. All recreational vehicles placed in an identified flood hazard area must either:
   
   1. Be on the site for fewer than one hundred eighty (180) consecutive days;
   2. Be fully licensed and ready for highway use (a recreational vehicle is ready for highway use if it is licensed, on its wheels or jacking system, attached to the site only by quick disconnect type utilities and security devices, and has no permanently attached structures or additions); or
   3. The recreational vehicle must meet all the requirements for new construction.

1. All subdivision and other proposed new development proposals shall be consistent with the need to minimize flood damage.
2. All subdivision and other proposed new development proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize or eliminate flood damage.
3. All subdivision and other proposed new development proposals shall have adequate drainage provided to reduce exposure to flood hazards.
4. In all flood hazard areas require that all new subdivision proposals and other proposed developments (including proposals for manufactured home parks and subdivisions) greater than fifty (50) lots or five (5) acres, whichever is the lesser, include within such proposals flood elevation data (see § 14-307(5)).