(A) No person, firm, corporation or governmental body, not exempted by state law, shall commence any development in a SFHA or floodplain without first obtaining a development permit from the city.
(B) Application for a development permit shall be made on a form provided by the city.
(1) The application shall be accompanied by drawings of the site, drawn to scale showing property line dimensions; and existing grade elevations and all changes in grade resulting from excavation or filling, sealed by a licensed engineer, architect or surveyor; the location and dimensions of all buildings and additions to buildings; and the elevations of the lowest floor (including basement) of all proposed buildings subject to the requirements of §§ 156.090 through 156.093 of this chapter.
(2) The application for a development permit shall also include the following information:
(a) A detailed description of the proposed activity, its purpose and intended use;
(b) Site location (including legal description) of the property, drawn to scale, on the designated floodway maps, indicating whether it is proposed to be in an incorporated or unincorporated area;
(c) Anticipated dates of initiation and completion of activity;
(d) Plans of the proposed activity shall be provided which include as a minimum:
1. A vicinity map showing the site of the activity, name of the waterway, boundary lines, names of roads in the vicinity of the site, graphic or numerical scale, and north arrow;
2. A plan view of the project and engineering study reach showing existing and proposed conditions including principal dimensions of the structure or work, elevations, using the North American Vertical Datum of 1988, adjacent property lines and ownership, drainage and flood control easements, distance between proposed activity and navigation channel (when the proposed construction is in or near a commercially navigable body of water), floodplain limit, location and orientation of cross- sections, north arrow and a graphical or numerical scale;
3. Cross-section views of the project perpendicular to the flow of floodwater and engineering study reach showing existing and proposed conditions including principal dimensions of the work as shown in plan view, existing and proposed elevations, normal water elevation, ten-year frequency flood elevation, 100-year frequency flood elevation and graphical or numerical scales (horizontal and vertical); and
4. A soil erosion and sedimentation control plan for disturbed areas. This plan shall include a description of the sequence of grading activities and the temporary sediment and erosion control measures to be implemented to mitigate their effects. This plan shall also include a description of final stabilization and revegetation measures, and the identification of a responsible party to ensure post-construction maintenance.
(3) Engineering calculations and supporting data shall be submitted showing that the proposed work will meet the criteria of § 156.077 of this chapter.
(4) Any and all other federal, state and local permits or approvals that may be required for this type of development.
(C) Based on the best available existing data according to federal, state or other sources, the city shall compare the elevation of the site to the base flood or 100-year frequency flood elevation.
(1) Should no elevation information exist for the site, the developer’s engineer shall calculate the elevation according to § 156.004(D) of this chapter.
(2) Any development located on land that can be shown to have been higher than the base flood elevation of the current Flood Insurance Rate Map identification is not in the SFHA and, therefore, not subject to the requirements of this chapter.
(3) The city shall maintain documentation of the existing ground elevation at the development site and certification that this ground elevation existed prior to the date of the site’s first Flood Insurance Rate Map identification.
(4) The city shall be responsible for obtaining from the applicant copies of all other federal, state and local permits, approvals or waivers that may be required for this type of activity. The city shall not issue the development permit unless all required federal, state and local permits have been obtained.
(Prior Code, § 157.076) (Ord. 08-023, passed 7-22-2008)