In all areas of special flood hazards, the following standards are required.
(A) Anchoring.
(1) All new construction and substantial improvements shall be anchored to prevent flotation, collapse, or lateral movement of the structure.
(2) All manufactured homes shall be anchored to prevent flotation, collapse, or lateral movement, and shall be installed using methods and practices that minimize flood damage.
(B) AH Zone drainage. Adequate drainage paths are required around structures on slopes to guide floodwaters around and away from proposed structures.
(C) Construction materials and methods.
(1) All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage.
(2) All new construction and substantial improvements shall be constructed using standard methods and practices within the construction industry that minimize flood damage.
(3) (a) Electrical, heating, ventilation, plumbing, and air-conditioning equipment, and other service facilities, shall be designed and/or otherwise elevated or located so as to prevent water from entering or accumulating within the components during conditions of flooding.
(b) Locating such equipment below the base flood elevation may cause annual flood insurance premiums to be increased.
(D) Utilities.
(1) All new and replacement water supply systems shall be designed to minimize or eliminate the infiltration of floodwaters into the systems.
(2) Water wells shall be located on high ground that is not in the floodway.
(3) New and replacement sanitary sewage systems shall be designed to minimize or eliminate the infiltration of floodwaters into the systems and discharges from the systems into floodwaters.
(4) On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.
(E) Subdivision proposals.
(1) All subdivision proposals shall be consistent with the need to minimize flood damage.
(2) All subdivision proposals shall have public utilities and facilities, such as sewer, gas, electrical, and water systems, located and constructed to minimize or eliminate flood damage.
(3) All subdivision proposals shall have adequate drainage provided to reduce exposure to flood damage.
(4) Where base flood elevation data has not been provided or is not available from another authoritative source, it shall be generated for subdivision proposals and other proposed developments which contain at least 50 lots, or five acres, whichever is less.
(F) Review of building permits. Where elevation data is not available either through the Flood Insurance Study, FIRM, or from another authoritative source (§ 152.02(B)), applications for building permits shall be reviewed to assure that proposed construction will be reasonably safe from flooding. The test of reasonableness is a local judgment, and includes the use of historical data, high water marks, photographs of past flooding, and the like, where available.
(Prior Code, § 14-1-5) (Ord. 2015-02, passed 6-10-2015) Penalty, see § 152.99
Statutory reference:
Anchoring, see 44 C.F.R. § 60.3(a)
Construction materials and methods, see 44 C.F.R. § 60.3(a)(3)(ii) through (iv)
Flood hazard standards, see 44 C.F.R. § 60.3(a)(b)
Subdivision proposals, see 44 C.F.R. § 60.3(a)(4)(b)(3)
Utilities, see 44 C.F.R. § 60.3(a)(5)(6)