A floodway is a designated portion of a floodplain intended to convey flood flows, as defined by the governing floodplain program. Restrictions and mapping procedures depend on the applicable authority. Boundary locations and project requirements require review against official records. Engineering analysis may be needed to assess proposed changes under local rules.
Why it matters for owners
Floodway constraints can affect development options and permitting. Clarify the responsible authority and required analysis in the project scope.
