(A) Drainage area upstream of the site is greater than one square mile.
(1) If the 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, 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/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.
(3) Once the Floodplain Administrator has received the proper permit for construction in a floodway (including letters of authorization) or floodplain analysis/regulatory assessment approving the proposed development, an improvement location permit may be issued; provided, the conditions of the improvement location permit are not less restrictive than the conditions received from the state’s Department of Natural Resources and the provisions contained in this article have been met.
(B) Drainage area upstream of the site is less than one square mile.
(1) If the Floodplain Administrator, in consultation with the City Engineer, determines that the improvements proposed on a site may be subject to flooding by the 1% annual chance flood and/or the site is in an identified floodplain where the limits of the floodway and fringe have not yet been determined, 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. The engineering analysis shall be submitted to the City Engineer for review and approval prior to issuance of an improvement location permit.
(a) The applicant submitting an engineering analysis shall reimburse the city for the cost of the engineering review.
(b) This cost is in addition to any other permit, application or review fees charged by the city.
(2) Upon receipt, the Floodplain Administrator may issue the local improvement location permit; provided, the provisions contained in this article have been met.
(C) Cumulative effect. The total cumulative effect of the proposed development, when combined with all other existing and anticipated development, shall not increase the regulatory flood more than 0.14 of one foot and shall not increase flood damages or potential flood damages.
(Ord. 2014-1688, passed 9-15-2014)