Sec. 86-567(c)(3)

Other

• Applicant determines BFE

  Where the specific one percent annual chance flood elevation cannot be determined for this area using other sources of data, such as the U.S. Army Corps of Engineers Floodplain Information Reports, U.S. Geological Survey Flood-Prone Quadrangles, etc., then the applicant for the proposed use, development and/or activity shall determine this base flood elevation.

• Approximated floodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions.

  The approximated floodplain district shall be that floodplain area for which no detailed flood profiles or elevations are provided, but where a one-percent annual chance flood boundary has been approximated.

• BFE data for large subdivisions

  Base flood elevation data shall be obtained from other sources or developed using detailed methodologies comparable to those contained in a FIS for subdivision proposals and other proposed development proposals (including manufactured home parks) that exceed 50 lots or five acres, whichever is the lesser.

• Lowest floor elevation when no BFE2 ft

  If no flood depth number is specified, the lowest floor, including basement, shall be elevated no less than two feet above the highest adjacent grade.

• Lowest floor elevation when BFE utilized18 inches

  The floodplain administrator reserves the right to require a hydrologic and hydraulic analysis for any development. When such base flood elevation data is utilized, the lowest floor shall be elevated to at least 18 inches above the base flood level.

• Obtain elevation certificates

  During the permitting process, the floodplain administrator shall obtain: the elevation of the lowest floor (including the basement) of all new and substantially improved structures; and if the structure has been floodproofed, the elevation to which the structure has been floodproofed.

• Use available BFE data

  For these areas, the base flood elevations and floodway information from federal, state, and other acceptable sources shall be used, when available.