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ORDINANCE NO. NS_]503 PAGE SIX DIVISION 2. SPECIFIC ELEVATION AND FLOODPROOFING STANDARDS Sec. 7-31. A0 Zone Standards - Residential Structures. Ail new construction and substantial improvements of residential structures (other than mobile homes) in the A0 zone must have the lowest floor ~ncluding basement) elevated above the crown of the nearest street to or above the depth number specified on the Flood Insurance Rate Maps. Sec. 7-32. A0 Zone - Nonresidential structures. Ail new construction and substantial improvements of nonresidential structures in the A0 zone must either; (1) have the lowest floor (including basement) elevated above the crown of the nearest street to or above the depth number specified on the Flood Insurance Rate Maps; or (2) together with attendant utility and sanitary facilities, be completely flood-proofed to or above that level so that any space below that level is watertight with walls substantially impermeable to the passage of water and with structural components having the capability of resisting hydrostatic and hydrodynamic loads and effects of buoyancy. Sec. 7-33. A0 Zone - Mobile homes. (a) No mobile home shall be placed in the A0 zone unless anchored to resist flotation, collapse, or lateral movement by the provision of over-the-top and frame ties to ground anchors. Specifically: (1) Over-the-top ties must be provided at each of the four corners of the mobile home, with two additional ties per side at intermediate locations, except that mobile homes less than 50 feet long must have one additional tie per side; (2) Frame ties must be provided at each corner of the home with five additional ties per side at intermediate points, except that mobile homes less than 50 feet long must have four additional ties per side; (3) All components of the anchoring system must be capable of carrying a force of 4800 pounds. (4) Any additions to the mobile home must be similarly anchored. (b) NO permit for the placement of a mobile home in any mobile home park or subdivision in the A0 zone shall be issued until such mobile home park or subdivision has filed with the City Manager an evacuation plan indicating alternate vehicular access and escape routes. Sec. 7-34. Al6 Zone - regulatory floodway. No permit shall be issued for placement of any mobile home in that portion of the Al6 zone which is designated as the regulatory floodway, nor shall any permit be issued for any encroachments, including fill, new construction, substantial improvements, and other development within such regulatory floodway which would result in any increase in flood levels within the community during the occurrance of the base flood discharge.