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Article 6: Development Standards Section 6.21: Flood Regulations Orange County, North Carolina – Unified Development Ordinance Page 6-151 (15) Public utilities and facilities shall be constructed to minimize flood damage consistent with these and all other applicable County regulations. (16) In cases where development is otherwise allowed within identified SFHA’s, adequate drainage shall be provided. (17) When a structure is located in a SFHA with multiple Base Flood Elevations (BFEs), the provisions for the highest BFE shall apply. (B) Specific Standards Where Base Flood Elevation (BFE) Data Provided In all SFHAs where BFE data has been provided, as set forth in Section 1.10 or 4.3, the following standards shall be met: (1) Residential Construction (a) New construction within the SFHA shall be prohibited. (b) Substantial improvement of any existing residential structure (including manufactured homes) shall require the reference level, including basement, elevated no lower than two feet above the regulatory flood protection elevation, as defined in Article 10 of this Ordinance. (c) Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to automatically facilitate equalization of hydrostatic flood forces on exterior walls shall be provided pursuant to Section 2.6.3. (2) Non-Residential Construction (a) New construction within the SFHA shall be prohibited. (b) Substantial improvement of any existing commercial, industrial, or other non-residential structure shall have the reference level, including basement, elevated no lower than the regulatory flood protection elevationRFPE. (c) Structures located in the AE Zone may be flood proofed no lower than two feet above the level of the base flood elevationto the RFPE in lieu of elevation provided that all areas of the structure below the required flood protection elevation, together with attendant utility and sanitary facilities, below the RFPE are watertight with walls substantially impermeable to the passage of water, using structural components having the capability of resisting hydrostatic and hydrodynamic loads and the effect of buoyancy. (d) A North Carolina licensed Professional Engineer or Architect shall certify that the standards of this subsection are satisfied. Such certification shall be provided to the official as set forth in Section 2.6. (3) Manufactured Homes (a) Replacement manufactured homes shall be elevated so that the reference level of the manufactured home is no lower than the regulatory flood protection elevation. (b) Manufactured homes shall be securely anchored to an adequately anchored foundation to resist flotation, collapse, or lateral movement according to the State of North Carolina Regulations for Manufactured/Mobile Homes, 1995 Edition, and any revision thereto adopted by the Commissioner of Insurance pursuant to NCGS ξ143- 143.15 or a certified engineered foundation. would be permitted. Given recent discussions with State FEMA staff, it was deemed prudent to specify a prohibition on grading activities as part of this update. 72