O-2021-3831 amending Chapter 94 "Floods" of the CoLP Code of Ordinances and Chapter 5 of the PICM

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alteration or relocation of a watercourse, and submit evidence of such notification to the Federal Emergency Management Agency. (7) Assure that the flood carrying capacity within the altered or relocated portion of any watercourse is maintained. (8) When base flood elevation data has not been provided in accordance with section 94-38, the floodplain administrator shall obtain, review and reasonably utilize any base flood elevation data and floodway data available from a federal, state or other source, in order to administer the provisions of division 3. (9) When a regulatory floodway has not been designated, the floodplain administrator must require that no new construction, substantial improvements, or other development (including fill) shall be permitted within zones A1-30 and AE on the community's FIRM, unless it is demonstrated 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. (10) Under the provisions of 44 CFR Chapter 1, Section 65.12, of the National Flood Insurance Program regulations, a community may approve certain development in zones A1-30, AE, AH, on the community's FIRM which increases the water surface elevation of the base flood by more than one foot, provided that the community first completes all of the provisions required by Section 65.12. Sec. 94-63. - Establishment of development permit. A floodplain development permit shall be required to ensure conformance with the provisions of this article. Sec. 94-64. - Permit procedures. (1) Application for a floodplain development permit shall be presented to the floodplain administrator on forms furnished by him/her and may include, but not be limited to, plans in duplicate drawn to scale showing the location, dimensions, and elevation of proposed landscape alterations, existing and proposed structures, including the placement of manufactured homes, and the location of the foregoing in relation to areas of special flood hazard or moderate flood hazard. Additionally, the following information is required: (a) Elevation (in relation to mean sea level), of the lowest floor (including basement) of all new and substantially improved structures; (b) Elevation in relation to mean sea level to which any nonresidential structure shall be floodproofed; (c) A certificate from a registered professional engineer or architect that the nonresidential floodproofed structure shall meet the floodproofing criteria of section 94-87(2); 10