(a) No permit or variance shall be issued until the applicant submits a plan certified by a registered professional engineer or architect that the floodproofing measures will protect the structure or development to the flood protection elevation.
(b) Floodproofing measures shall be designed to:
(1) Withstand flood pressures, depths, velocities, uplift and impact forces and other regional flood factors;
(2) Protect structures to the flood protection elevation;
(3) Anchor structures to foundations to resist flotation and lateral movement; and
(4) Insure that structural walls and floors are watertight to the flood protection elevation, and the interior remains completely dry during flooding without human intervention.
(c) Floodproofing measures could include:
(1) Reinforcing walls and floors to resist rupture or collapse caused by water pressure or floating debris.
(2) Adding mass or weight to prevent flotation.
(3) Placing essential utilities above the flood protection elevation.
(4) Installing surface or subsurface drainage systems to relieve foundation wall and basement floor pressures.
(5) Constructing water supply wells and waste treatment systems to prevent the entry of flood waters.
(6) Putting cutoff valves on sewer lines or eliminating gravity flow basement drains.