Prior to any alteration or relocation of a watercourse and prior to
the issuance of any land use permit which may be required for the alteration
or relocation of a watercourse, the Director of Public Works shall notify,
in writing, adjacent municipalities, the appropriate district office of the
Department of Natural Resources and the appropriate office of FEMA and shall
require the applicant to secure all necessary state and federal permits. The
flood-carrying capacity within the altered or relocated portion of any watercourse
shall be maintained.
Development which requires a permit from the Department of Natural Resources under Chs. 30 and 31, Wis. Stats., such as docks, piers, wharves, bridges, culverts, dams and navigational aids, may be allowed provided that the necessary local permits are obtained and necessary amendments to the official floodway lines, water surface profiles, Floodplain Zoning Map or this chapter are made according to Article
VIII.