§ 1780-525. CONSTRUCTION MATERIALS AND METHODS

All new construction and substantial improvements of structures, including manufactured homes, shall be constructed:

(1)

With flood resistant materials and utility equipment resistant to flood damage for areas less than one foot above the base flood elevation;

(2)

Using methods and practices that minimize flood damage;

(3)

With electrical, heating, ventilation, plumbing and air conditioning equipment and other service facilities that are designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding; and

(4)

Within Zones AH or AO, so that there are adequate drainage paths around structures on slopes to guide flood waters around and away from proposed structures.

(5)

If fill is placed at a site to elevate a building pad above the base flood elevation, then buildings constructed within flood hazard areas must be constructed on compacted fill in accordance with the Construction Specifications or at least 90% density per ASTM-D1557 (known as Modified Proctor) and extending at least five feet beyond the building foundation walls before dropping below the base flood elevation and shall include appropriate protection from erosion and scour. The design of the fill must be approved by a registered professional engineer.