New construction, alterations, and substantial improvements of nonresidential including agricultural, commercial and industrial buildings, and residential and non-residential accessory buildings must be constructed such that:
(A) Elevation of the lowest floor. The lowest floor of the building must be elevated two feet above the base flood elevation or adequately dry flood proofed, according to this section. The lowest floor may be wet proofed provided the use is limited to only parking, loading, and storage of equipment or materials not appreciably affected by floodwater;
(B) Enclosure. Enclosures below the lowest floor on elevated buildings must be wet flood proofed and the use must be limited to parking, access, or storage or must be adequately dry flood proofed according to this section;
(C) Manufactured homes. Manufactured homes proposed for use as non-residential buildings cannot be dry flood proofed; and
(D) Agricultural structures. Agricultural structures not intended to be insurable, used solely for agricultural purposes, having low flood damage potential, used exclusively in connection with the production, harvesting, storage, drying, or raising of agricultural commodities including raising of livestock, and not intended for human habitation are exempt from the elevation requirement, dry or wet flood proofing, but shall:
(1) Be located on higher ground and as far from the channel as possible;
(2) Offer minimal obstruction to flood flows;
(3) Be adequately anchored to prevent flotation or collapse;
(4) Where electrical, heating and plumbing systems are installed, meet the flood proofing requirements in § 152.086(J), (K), and (L); and
(5) Meet the elevation or dry flood proofing requirements if the structure is an animal confinement facility.
(Ord. 484, passed 4-20-2015)
Statutory reference:
Related provisions, see ARM §§ 36.15.602(9), 36.15.701(3)(e), and 36.15.702(2) and 44 C.F.R. § 60.3(c)(3), and (c)(4)