(A) Where the drainage area upstream of the site is greater than one square mile:
(1) If a site is in an identified floodplain where the limits of the floodway and fringe have not yet been determined and the drainage area upstream of the site is greater than one square mile, then the Floodplain Administrator shall require the applicant to forward the application along with all pertinent plans and specifications to the state’s Department of Natural Resources for review and comment;
(2) No action shall be taken by the Floodplain Administrator until either a permit for construction in a floodway, including letters of authorization, or a floodplain analysis or regulatory assessment citing the 1% annual chance flood elevation and the recommended flood protection grade has been received from the state’s Department of Natural Resources; and
(3) Once the Floodplain Administrator has received the proper permit for construction in a floodway, including letters of authorization, or the floodplain analysis or regulatory assessment approving the proposed development, a floodplain development permit may be issued provided that the conditions of the floodplain development permit are not less restrictive than the conditions received from the state’s Department of Natural Resources and provided that the provisions contained in this subchapter have been met.
(B) Where the drainage area upstream of the site is less than one square mile:
(1) If a site is in an identified floodplain where the limits of the floodway and fringe have not yet been determined and the drainage area upstream of the site is less than one square mile, then the Floodplain Administrator shall require the applicant to provide an engineering analysis showing the limits of the floodplain and 1% annual chance flood elevation for the site; and
(2) The Floodplain Administrator, upon receipt, may issue the local floodplain development permit provided that the provisions contained in this subchapter have been met.
(C) When combined with all other existing and anticipated development, the total cumulative effect of the proposed development shall not increase the regulatory flood more than fourteen-hundredths of one foot and shall not increase flood damages or potential flood damages.
(Ord. 2015-1, passed 1-6-2015) Penalty, see § 152.99