Building permit applications for development, location, demolition, alteration, and the like, within a delineated flood hazard area, as shown on the community’s official flood hazard boundary map, which is hereby adopted by reference as if set out fully herein, shall be reviewed by the Building Official to ensure that all of the following requirements are met.
(A) All building sites shall be reasonably safe from flooding. If a proposed building site is in a flood-prone area, all new construction and substantial improvement (including the placement of pre-fabricated buildings and mobile homes) shall:
(1) Be designed, modified, and/or adequately anchored to prevent flotation, collapse, or lateral movement of the structure; all mobile homes to be placed within Zone A on a community’s flood hazard boundary map shall be anchored by providing over-the-top and frame ties to ground anchors; over-the-top ties shall be provided at each of the four corners of the mobile home, with two additional ties per side at intermediate points and mobile homes less than 50 feet long requiring one additional tie per side; frame ties shall be provided at each corner of the home, with five additional ties per side at intermediate points and mobile homes less than 50 feet long requiring four additional ties per side; all components of the anchoring system shall be capable of carrying a force of 4,800 pounds; and additions to the mobile home shall be similarly anchored;
(2) Be constructed with materials and utility equipment resistant to flood damage; and
(3) Be constructed by methods and practices that minimize flood damages.
(B) All new and replacement water supply systems within flood-prone areas shall be designed to minimize or eliminate infiltration of flood waters into the systems.
(C) All new and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into flood waters.
(D) Onsite waste disposal systems within flood-prone areas shall be located to avoid impairment to them, or contamination from them, during flooding.
(E) The Building Official shall utilize all available 100-year flood elevation data to review building permit applications, and shall require that:
(1) All new construction or substantial improvement of residential structures within the flood hazard area shall have the lowest floor, including basement, elevated to or above the 100-year flood; and
(2) All new construction or substantial improvement of nonresidential structures within the flood hazard area, shall have the lowest floor, including basement, elevated or floodproofed to or above the level of the 100-year flood.
(Prior Code, § 150.24) (Ord. 2019-561, passed 9-3-2019)