Williamsburg, Virginia · General provision

Sec. 21-971(c), Sec. 21-975

Dimensional standards

Servicing

Geographic extent
Areas designated as Zone A on the FIRM dated December 16, 2015, with approximated floodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions. boundary and no detailed base flood elevations.

Extracted standards

4 individual requirements pulled out of this section’s prose, each with the sentence it came from.

Floodplain

  • Base flood elevation data for subdivisions

    Base flood elevation data shall be obtained from other sources or developed using detailed methodologies... for subdivision proposals and other proposed development proposals that exceed five lots or five acres, whichever is the lesser.

  • Base flood elevation determination required

    Where the specific one percent annual chance flood elevation cannot be determined for this area using other sources of data... then the applicant for the proposed use, development and/or activity shall determine this base flood elevation.

  • Hydrologic and hydraulic analysis may be required

    The floodplain administrator reserves the right to require a hydrologic and hydraulic analysis for any development.

  • Lowest floor elevation above base flood elevation1.5 ft

    lowest floor shall be elevated to or above the base flood level plus 18 inches

From the ordinance

For these areas, the base flood elevations and floodway information from federal, state, and other acceptable sources shall be used... When such base flood elevation data is utilized, the lowest floor shall be elevated to or above the base flood level plus 18 inches.
Sec. 21-971(c), Sec. 21-975