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Portsmouth, Virginia, Cade of Ordinances: PART II -CODE -Chapter 14.1 FLOOD PROTECTION (c} Standards for manufacfured homes. Section 14.1-11(e} prohibits the permanent placement of manufactured homes in floodplain districts. Manufactured homes may be temporarily placed in a floodplain district provided that: (i) Manufactured homes placed in the floodplain district temporarily on individual lots or parcels, must meet al! the requirements for new construction, including the elevation and anchoring requirements in section 14.1-11 of this code. (2) Manufactured homes that are temporarily placed on sites shall be elevated on a permanent foundation so that the lowest floor of the manufactured home is elevated to or above the base flood elevation and shall be securely anchored to an adequately anchored foundation system to resist flotation, collapse and lateral movement. (3) Methods of anchoring may include, but are not limited to, use of over-the-top or frame ties to ground anchors. This standard shall be in addition to and consistent with applicable state anchoring requirements for resisting wind forces. (4} The length of time a manufactured home may be left on a lot and be considered temporary shall not exceed the time limitations provided in the Zoning Ordinance. (d) Standards forRecreafiona! Vehicles. Recreational vehicles placed on sites within floodplain districts shall be on the site for fewer than 180 consecutive days and be fully licensed and ready for highway use. For the purposes of this chapter, a recreational vehicle shall be deemed ready for highway use if it is on its wheels or jacking system, is attached to the site only by quick-disconnect-type utilities and security devices, and has no permanently attached additions. Sec. 14.1-11. -District provisions. (a) Genera! sfandards. The following provisions shall apply to all permits: (1) New construction, substan#ial improvements, and repairs for substantial damage shall be according to the VA USBC and this ordinance, and anchored to prevent flotation, collapse, or lateral movement of the structure. (2} New construction, substantial improvements, and repairs for substantial damage shall be constructed with materials and utility equipment resistant to flaod damage below the design flood elevation (DFE} incases when those elements are allowed below the DFE. (3) New construction, substantial improvements, and repairs far substantial damage shall be constructed by methods and practices that minimize flood damage. (4) Electrical, heating, ventilation, plumbing, air conditioning equipment and other service facilities, including duct work, shall be designed andlor located so as to prevent water from entering or accumulating within the components during conditions of flooding.. (5) New and replacement water supply systems shall be designed to minimize or eliminate infiltration of flaod waters into the system. 12