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(1) Permit Required. A development permit shall be obtained before construction or development begins within any area of special flood hazard established in section 9.6705. The permit shall be for all structures including manufactured homes as defined in this land use code, and for all other development including fill and other activities, as also defined in section 9.0500.

(2) Application. Application for a development permit within an area of special flood hazard shall be made on forms furnished by the City and may include but not be limited to plans in duplicate drawn to scale showing the nature, location, dimensions and elevations of the area in question; existing or proposed structures, fill, storage of materials, drainage facilities, and the location of the foregoing. In addition to material referenced in EC 9.6707, the following information is specifically required:

(a) In riverine flood zones, the proposed elevation (in relation to mean sea level), of the lowest floor (including basement) and all attendant utilities of all new and substantially improved structures.

(b) The proposed elevation in relation to mean sea level to which any non-residential structure will be floodproofed.

(c) Certification by a registered professional engineer or architect licensed in the State of Oregon that the floodproofing methods proposed for any non-residential structure meet the floodproofing criteria for non-residential structures in EC 9.6707(2)(c)3.

(d) A description of the extent to which any watercourse will be altered or relocated.

(e) Base Flood Elevation data for land division applications or other development when required per EC 9.6707(1)(f).

(f) The substantial improvement calculation for any improvement, addition, reconstruction, renovation, or rehabilitation of an existing structure.

(g) The amount and location of any fill or excavation activities proposed.

(h) A Conditional Letter of Map Revision (CLOMR) for any:

1. Proposed floodway encroachments that increase the base flood elevation; or

2. Proposed development which increases the base flood elevation by more than one (1) foot in areas where FEMA has provided base flood elevations but no floodway.

(Section 9.6706, see chart at front of Chapter 9 for legislative history from 2/26/01 through 6/1/02; repealed and replaced by Ordinance No. 20684, enacted March 8, 2023, effective April 14, 2023.)