15.04.060 Floodplain permits – Application.
A. Application for a floodplain permit shall be made to the director on a form furnished by the Department of Community Planning. The application shall contain the information required by this section.
B. Applications for construction of any new or substantially improved structure or placement of any movable structure in a special flood hazard area shall contain the following information:
1. Elevations (in relation to mean sea level) for:
a. The lowest floor, including basement; and
b. The estimated base flood elevation of the site as determined in accordance with FNSBC 15.04.100.
2. Evidence that the proposed structure will be adequately protected from inundation, in the manner described in FNSBC 15.04.110.
3. Elevation (in relation to mean sea level) to which any nonresidential structure has been floodproofed.
4. Certification by a registered professional engineer or architect that the floodproofing methods for any nonresidential structure meet the floodproofing criteria in FNSBC 15.04.110(D).
5. If within the regulatory floodway, hydrologic and hydraulic analyses performed in accordance with standard engineering practice demonstrating that the proposed development will not result in any increase in flood levels within the community during the occurrence of the base flood discharge.
C. Applications for the alteration or relocation of a watercourse shall include the following:
1. A detailed description of proposed alterations, identifying the extent to which the watercourse will be altered, relocated or impacted; and
2. A report from a registered engineer or certified hydrologist stating that the ability of the channel to adequately carry floodwater will be maintained at the same capacity as prior to alteration, or a certification from the U.S. Army Corps of Engineers, Floodplain Management Section, stating the same.
D. Applications for development other than those included in subsection (B) or (C) of this section (mining, excavation, etc.) shall include:
1. A detailed description of the proposed development, identifying the extent to which the flow of floodwaters will be impeded or impacted; and
2. A report from a registered engineer or certified hydrologist stating that the proposed development will not diminish the movement or withdrawal of floodwaters, or pollute or be polluted by floodwaters, or a certification from the U.S. Army Corps of Engineers, Floodplain Management Section, stating the same.
E. If encroachments, including fill, new construction, substantial improvement, and other development, are within the regulatory floodway, hydrologic and hydraulic analyses performed in accordance with standard engineering practice must be submitted demonstrating that the proposed encroachment would not result in any increase in flood levels within the community during the occurrence of the base flood discharge. In Zone AE where no regulatory floodway has been designated, proof must be submitted demonstrating that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within the community.
F. No floodplain permit will be issued unless:
1. All requirements of this chapter are met;
2. The proposed development is in compliance with FNSBC Titles 17 and 18, and all other ordinances or regulations as are from time to time established or amended; however, the ordinance codified in this chapter shall control in the event of any conflict unless specifically stated otherwise; and
3. The applicant has received all necessary permits from those governmental agencies from which approval is required by federal or state law, including Section 404 of the Federal Water Pollution Control Act Amendments of 1972, 33 USC 1344 (wetlands regulations).
G. A permit shall be granted or denied within 30 days from receiving the application. If additional information is required, the director shall act within 30 days of receipt of such additional requested information. A denial of a permit shall be accompanied with written findings. Transmittal by certified mail shall be sufficient notice. (Amended during 2016 republication; Ord. 2009-55 § 2, 2010; Ord. 85-124 § 3, 1985. 2004 Code § 15.04.050.)