Ordinance 2012-1625 - Laserfiche WebLink

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(2) Manufactured homes to be placed or substantially improved on sites in existing manufactured home parks or subdivisions that are not subject to the provisions in subsection F.3.a of this section shall be elevated so that either the lowest floor of the manufactured home is at least one foot above the base flood elevation, or the manufactured home chassis is supported by reinforced piers or other foundation elements that are no less than 36 inches in height above grade, and shall be securely anchored to an adequately anchored foundation system to resist flotation, collapse, and lateral movement. 4. Recreational vehicles: Recreational vehicles shall be on the site for fewer than 180 consecutive days, or shall be fully licensed and ready for highway use, or shall meet the permit requirements of section 17.56.240 and elevation and anchoring requirements for resisting wind forces and of subsection 3 of this section. A recreational vehicle is ready for highway use if it is on wheels or a jacking system, is attached to the site only by quick disconnect type utilities and security devices, and has no permanently attached additions. 5. Enclosures: New construction and substantial improvements, with fully enclosed areas below the lowest floor that are usable solely for parking of vehicles, building access, or storage in an area other than a basement and which are subject to flooding shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for the entry and exit of floodwaters. Designs for meeting this requirement must either be certified by a Colorado registered professional engineer or architect or meet or exceed the following minimum criteria: a. A minimum of two openings having a total net area of not less than one square inch for every square foot of enclosed area subject to flooding shall be provided. b. The bottom of all openings shall be no higher than one foot above grade. c. Openings may be equipped with screens, louvers, valves, or other coverings or devices provided that they permit the automatic entry and exit of floodwaters. Sec. 17.56.162.—Floodways. A. Floodways are administrative limits and tools used to regulate existing and future floodplain development. The State of Colorado has adopted Floodway standards that are more stringent than the FEMA minimum standard (see definition of Floodway in section 17.56.010). Located within Special Flood Hazard Area established in section 17.56.070, are areas designated as Floodways. B. Since the Floodway is an extremely hazardous area due to the velocity of floodwaters which carry debris,potential projectiles and erosion potential,the following provisions shall apply: 1. Encroachments are prohibited, including fill, new construction, substantial improvements and other development within the adopted regulatory Floodway unless it has been demonstrated Ordinance No. 1625,Series 2012 Page 19 of 31 19