FP25-003 Staff Decision - Laserfiche WebLink

Home Browse Search

f. The appurtenant structure must be designed and constructed to equalize hydrostatic flood forces on exterior walls and comply with the requirements for flood openings in subsection (A) of this section; g. Appurtenant structures shall be located and constructed to have low damage potential; h. Appurtenant structures shall not be used to store toxic material, oil, or gasoline, or any priority persistent pollutant identified by the Oregon Department of Environmental Quality unless confined in a tank installed in compliance with subsection (L) of this section; i. Electrical, heating, ventilation, plumbing, and air-conditioning equipment shall be elevated to one foot above the level of the base flood elevation. Where the base flood elevation is not available, the electrical, heating, ventilation, plumbing and air-conditioning equipment shall be elevated to one foot above the highest adjacent natural grade (within five feet) of the building site or shall be constructed with electrical, mechanical, and other service facilities located and installed so as to prevent water from entering or accumulating within the components during conditions of the base flood; j. A declaratory statement is recorded requiring compliance with the standards in subsections (A)(8)(b) through (i) of this section. The applicant proposes a detached accessory structure after completion of the dwelling. These standards will apply to this structure. This shall be made a condition of approval. D. Anchoring. 1. All new construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy. 2. All manufactured dwellings must likewise be anchored to prevent flotation, collapse or lateral movements, and shall be installed using methods and practices that minimize flood damage. Anchoring methods may include, but are not limited to, use of over-the-top or frame ties to ground anchors. Anchoring methods shall be consistent with the standards contained in the Oregon Manufactured Dwelling The proposal for a dwelling shall be properly anchored; this will be made a condition of approval. E. Construction Materials and Methods. 1. All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage, and the design and methods of construction are in accord with accepted standards of practice based on an engineer’s or architect’s review of the plans and specifications. 2. All new construction and substantial improvements shall be constructed using methods and practices that minimize flood damages. F. Utilities. 1. All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of floodwaters into the system as approved by the State Health Division. 2. New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters in the systems and discharge from the systems into floodwaters. 3. On-site waste disposal systems shall be designed and located to avoid impairment to them or contamination from them during flooding consistent with the requirements of the Oregon State Department of Environmental Quality. 4. Electrical, heating, ventilation, plumbing, duct systems, air-conditioning and other equipment and service facilities not installed so as to prevent water from entering or accumulating within the components during conditions of the base flood shall be elevated to one foot above the level of the base flood elevation. Where the base flood elevation is not available, the electrical, heating, ventilation, plumbing and air-conditioning equipment shall be elevated to one foot above the highest adjacent