(a) All subdivisions shall comply with current floodplain regulations on file in the City. Appropriate measures shall be taken to elevate buildings to required levels. A proposed subdivision may be denied if access to the subdivision is periodically blocked by flood waters.
(b) Flood control or storm drainage facilities shall be provided as follows:
(1) Access to flood control or storm drainage ditches and channels shall be provided by easements of not less than twenty (20) feet in width, located on one side of the flood control or drainage ditch, channel or similar facilities.
(2) Flood control or storm drainage easements containing underground facilities shall have a minimum width of twenty (20) feet.