(A) A detached accessory structure of $3,000 or less is allowed to be placed in the Zone A, AE, or AO if the following criteria is met:
(1) Accessory structures are to be completely open structures or must be limited to 200 square feet of enclosed space;
(2) Accessory structures shall be designed to have a minimal flood damage potential;
(3) Accessory structures shall be constructed and places on the site so as to offer the minimum resistance to flood waters;
(4) Accessory structures shall be firmly anchored to prevent flotation, collapse and lateral movement of the structure. Tie down systems must be designed to meet the requirements of the currently adopted International Building Code;
(5) Service equipment such as electrical or water supply must be minimal and designed to prohibit the accumulation of flood waters from entering or accumulating in the equipment. Sanitary sewer lines are prohibited from entering the structure;
(6) Openings to relieve hydrostatic pressure during a flood shall be provided one foot above grade and the entire vent must be located below the base flood elevation. Venting shall comply with § 153.41; and
(7) Accessory structures shall be built with flood resistant materials in accordance with FEMA Technical Bulletin 2 with a rating of class 4 or 5.
(B) A detached accessory structure or garage of more than $3,000 to be placed in Zone A, AE, or AO must comply with the requirements as outlined in FEMA’s Technical Bulletin 7-93 wet flood proofing requirements or be elevated or dry flood-proofed.
(C) A detached accessory structure or garage placed in the VE flood zone must be built with the lowest horizontal structural member placed one foot above base flood elevation. The structure must be designed and finished construction certified, by a design professional. All walls below lowest horizontal structural member must be of a breakaway design and have hydrostatic vents installed as required by § 153.41. An elevation certificate must be provided at the placement of the lowest structural member and at the end of construction. All materials below base flood must be Class 4 or 5 as defined in FEMA Technical Bulletin 2.
(Ord. 2020-18, passed 11-17-2020)