However, the ordinances may apply to any structure, building, dam, obstruction, deposit or excavation in or on the flood plains of any river or stream.
(the ordinances; may apply; to any structure, building, dam, obstruction, deposit or excavation in or on the flood plains of any river or stream)
the ordinances
may apply
to any structure, building, dam, obstruction, deposit or excavation in or on the flood plains of any river or stream