(A) The Floodplain Administrator shall use elevation and floodway information from federal, state or other acceptable sources when available to determine the elevation above which development will be reasonably safe from flooding.
(B) When data from an acceptable source is not available, the Floodplain Administrator shall review, or shall cause to be reviewed, all proposed development to determine:
(1) The amount being invested; and
(2) The specific flood risk at the site.
(C) The Floodplain Administrator shall then require the applicant to determine the elevation above which the development will be reasonably safe from flooding using elevation data, hydrologic and hydraulic analyses or other techniques. When hydrologic and hydraulic analyses are required, they shall only be undertaken by a registered professional engineer who shall certify that the methods used correctly reflect currently accepted technical concepts. The resultant study shall include a cover letter, signed by the responsible professional, providing a statement of findings in basic terms. In addition, studies, analyses, computations and the like shall be submitted in sufficient detail to allow a thorough technical review by the Floodplain Administrator.
(D) Any development and/or use of land shall be permitted; provided that, all such uses, activities and/or development shall be undertaken in strict compliance with the flood-proofing and related provisions contained herein and in all other applicable codes, ordinances and regulations.
(E) See appendix 4.4 for Sample “Approximated floodplain (Zone A) techniques”.
(Ord. passed 6-11-2012)