§ 17.28.170. STANDARDS FOR MANUFACTURED HOMES AND MANUFACTURED HOME PARKS AND SUBDIVISIONS.

.010 Anchoring. All manufactured homes and additions to manufactured homes shall be anchored to resist flotation, collapse, or lateral movement by one of the following methods:

(a) By providing an anchoring system designed to withstand horizontal forces of twenty-five pounds per square foot and up-lift forces of fifteen pounds per square foot;

(b) By providing over-the-top and frame ties to ground anchors. Specifically:

(i) Over-the-top ties be provided at each of the four corners of the manufactured home, with two additional ties per side at intermediate locations, with manufactured homes less than fifty feet long require only one additional tie per side;

(ii) Frame ties be provided at each corner of the home with five additional ties per side at intermediate points, with manufactured homes less than fifty feet long require only four additional ties per side; and components of the anchoring system be capable of carrying a force of four thousand eight hundred pounds.

.015 All manufactured homes placed or substantially improved within Zones AH and AE on the FIRM on sites (a) outside of a manufactured home park or subdivision, (b) in a new manufactured home park or subdivision, (c) in an expansion to an existing manufactured home park or subdivision, or (d) in an existing manufactured home park or subdivision in which a manufactured home has incurred "substantial damage" as the result of a flood, be elevated on a permanent foundation such that the lowest floor of the manufactured home is elevated at least one foot above the base flood elevation and be securely anchored to an adequately anchored foundation system to resist flotation, collapse and lateral movement.

.018 Adequate surface drainage and access for a hauler shall be provided.

.022 All manufactured homes that are not subject to the provisions of Section 17.28.170.015 shall be placed on pads or lots elevated on compacted fill or pilings so that the lowest floor of the manufactured home is at least one foot above the base flood level. If elevated on pilings: (a) the lots shall be large enough to permit steps; (b) the pilings shall be placed in stable soil no more than ten feet apart; and (c) reinforcement shall be provided for pilings more than six feet above the ground level.

.030 No manufactured home shall be placed in a floodway, except in an existing manufactured home park or existing manufactured home subdivision;

.040 Require that recreational vehicles placed on sites within Zone AH and AE on the FIRM either (i) be on the site for fewer than one hundred eighty consecutive days, (ii) be fully licensed and ready for highway use, or (iii) meet the permit requirements in Section 17.28.100 and the elevation and anchoring requirements for "manufactured homes" in Section 17.28.170.015 above. A recreational vehicle is 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. (Ord. 4138 § 1 (part); June 3, 1980: Ord. 4879 §§ 15 — 19, 20 (part); December 1, 1987; Ord. 5217 §§ 7, 8; May 7, 1991.)