(A) Hazards. No development in the flood fringe shall create a threat to public health and safety.
(B) Submitting data. If fill is being used to elevate the site above the base flood or 100-year frequency flood elevation, the applicant shall submit sufficient data and obtain a letter of map revision (LOMR) from FEMA for the purpose of removing the site from the floodplain.
(C) Compensatory storage.
(1) Whenever any portion of a floodplain is authorized for use, the volume of space which will be occupied by the authorized fill or structure below the base flood or 100-year frequency flood elevation shall be compensated for and balanced by a hydraulically equivalent volume of excavation taken from below the base flood or 100-year frequency flood elevation.
(2) The excavation volume shall be at least equal to one and one-half times the volume of storage lost due to the fill or structure.
(3) In the case of streams and watercourses, the excavation shall be made opposite or adjacent to the areas so filled or occupied.
(4) All floodplain storage lost below the existing ten-year flood elevation shall be replaced below the proposed ten-year flood elevation. All floodplain storage lost above the existing ten-year flood elevation shall be replaced above the proposed ten-year flood elevation.
(5) All such excavations shall be constructed to drain freely and openly to the watercourse.
(Ord. 05-09, passed 5-24-2005)