Wake Forest Unified Development Ordinance - July 2022

Erosion, Flood, Stormwater & Watershed Standards 12.5 Stormwater Management


manufactured, or mobile home may be placed on a lot in an existing manufactured home subdivision or mobile home park provided the anchoring and the elevation standards of this Ordinance are met 12.4.2.D.3.a.

2. If paragraph 1, above, is satisfied, all development shall comply with all applicable flood hazard reduction provisions of this ordinance. 3. No manufactured homes shall be permitted within floodways or non- encroachment areas, except replacements of existing manufactured homes which meet the following provisions: a. Manufactured and mobile homes shall be anchored to prevent flotation, collapse, or lateral movement in accordance with the Regulations for Mobile Homes and Modular Housing adopted by the Commissioners of Insurance pursuant to NCGS 143.143.15. Additionally, when the chassis elevation is 36 inches or less above the grade within a floodprone area, the chassis shall be supported by reinforced piers or other foundation elements of at least equivalent strength. If the elevation of the chassis exceeds 36 inches in height an engineering certification is required. b. The no encroachment standard of Section 12.4.2.D.1. c. An evacuation plan shall be developed for evacuation of all residents of all new, substantially improved or substantially damaged manufactured home subdivisions or mobile home parks located within flood prone areas. This plan shall be filed with and approved by the Floodplain Administrator and the local emergency management coordinator. d. An existing manufactured home subdivision or mobile home park on which a manufactured or mobile home has incurred “substantial damage” as a result of a flood, must be elevated on a permanent foundation such that the lowest floor of the manufactured or mobile home is elevated no lower than two (2) feet above the base flood elevation.

12.5. Stormwater Management

12.5.1. General Provisions A.

Applicability: The stormwater management regulations of this section shall apply within the areas designated on the "Phase II Stormwater Map of Town of Wake Forest, North Carolina" (Stormwater Map) with the following exemptions: 1. Exemptions: The following types of development and redevelopment shall be exempt from the provisions of this ordinance, provided that they are not in the Falls Lake Watershed and are not part of a large plan of common development or sale: a. Development or redevelopment that disturbs less than 1 acre; b. All development or redevelopment in the RA-HC and UMX Districts; c. Redevelopment in all districts with no increase in impervious coverage; and d. All development or redevelopment of State or Federally owned properties. 2. Illicit Discharges and Connections: Notwithstanding the exemptions granted above, the provisions regarding illicit discharges and connections in Section 12.5.8 shall apply in all districts and for all types of development. B. Concurrency with Clean Water Act: Activities that are exempt from the permit requirements of Section 404 of the federal Clean Water Act, as specified in 40 CFR 232

Town of Wake Forest Unified Development Ordinance – July 19, 2022


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