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 resist
flotation, collapse or lateral movement. Methods of anchoring may
include, but are not limited to, use of over-the-top or frame ties
to ground anchors. This requirement is in addition to applicable state
and local anchoring requirements for resisting wind forces.
B. 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 methods and practices that minimize flood
damage.
C. Utilities.
(1) All new and replacement water supply systems shall
be designed to minimize or eliminate infiltration of floodwaters into
the systems.
(2) New and replacement sanitary sewage systems shall
be designed to minimize or eliminate infiltration of floodwaters into
the systems and discharge from the systems into floodwaters.
(3) On-site waste disposal systems shall be located to
avoid impairment to them or contamination from them during flooding.
(4) Electrical, heating, ventilation, plumbing and air-conditioning
equipment and other service facilities shall be designed and/or located
so as to prevent water from entering or accumulating within the components
during conditions of flooding.
Manufactured homes shall be anchored in accordance with §
143-15A. All manufactured homes to be placed or substantially improved within an area of special flood hazard shall be elevated on a permanent foundation such that the top of the lowest floor is at or above the base flood elevation.