Laserfiche WebLink
Requiring these certifications for the dwelling can be made a condition of any approval. This criterion is met. <br /> <br />2. Manufactured dwellings shall have the bottom of the longitudinal chassis frame beam, including <br />basement, elevated on a permanent foundation to two feet above base flood elevation. Where the base <br />flood elevation is not available, the finished floor, including basement, shall be elevated on a permanent <br />foundation to two feet above highest adjacent natural grade (within five feet) of the building site; <br /> <br />If the proposed dwelling is a manufactured home, this standard will apply. This shall be made a condition of <br />approval. <br /> <br />3. Manufactured dwellings shall be anchored in accordance with subsection (D) of this section; and all <br />electrical crossover connections shall be a minimum of one foot above the base flood elevation; <br /> <br />If the proposed dwelling is a manufactured home, this standard will apply. This shall be made a condition of <br />approval. <br /> <br />4. No new residential structures, including manufactured dwellings, shall be placed in a floodway. An <br />exception to this prohibition may be granted if a floodplain development permit and variance consistent <br />with MCC 17.178.080 are obtained; <br /> <br />No development is proposed within the regulatory floodway, this criterion is met. <br /> <br />5. All new construction and substantial improvements with fully enclosed areas below the lowest floor <br />(excluding basements) are subject to the following requirements. Enclosed areas below the base flood <br />elevation, including crawlspaces, shall: <br /> <br />a. Be designed to automatically equalize hydrostatic flood forces on walls by allowing for the entry and <br />exit of floodwaters; <br />b. Be used solely for parking, storage, or building access; <br />c. Be certified by a registered professional engineer or architect to meet or exceed all of the following <br />minimum criteria: <br />i. A minimum of two openings, <br />ii. The total net area of non-engineered openings shall be not less than one square inch for each <br />square foot of enclosed area, where the enclosed area is measured on the exterior of the <br />enclosed walls, <br />iii. The bottom of all openings shall be no higher than one foot above grade, <br />iv. Openings may be equipped with screens, louvers, or other coverings or devices; provided, <br />that they shall allow the automatic flow of floodwater into and out of the enclosed areas and <br />shall be accounted for in the determination of the net open area; <br /> <br />6. Construction where the crawlspace is below grade on all sides may be used. Designs for meeting these <br />requirements must either be certified by a registered professional engineer or architect, or must meet the <br />following standards, consistent with FEMA Technical Bulletin 11-01 for crawlspace construction: <br /> <br />a. A minimum of two openings having a total net area of not less than one square inch for every square <br />foot of enclosed area subject to flooding shall be provided; <br />b. The bottom of all openings shall be no higher than one foot above grade; <br />c. Openings may be equipped with screens, louvers, or other coverings or devices; provided, that they <br />permit the automatic entry and exit of floodwaters; <br />d. Interior grade of the crawlspace shall not exceed two feet below the lowest adjacent exterior grade; <br />e. The height of the crawlspace when measured from the interior grade of the crawlspace (at any point <br />on grade) to the bottom of the lowest horizontal structural member of the lowest floor shall not <br />exceed four feet; <br />f. An adequate drainage system that removes floodwaters from the interior area of the crawlspace <br />shall be provided;