§ 10.3.1 ALTERATION OF WATERCOURSES.
   The Floodplain Administrator shall:
   (A)   Notify adjacent communities and the Montana Floodplain Management Section (DNRC) prior to any alteration or relocation of a watercourse and submit evidence of such notification to the Federal Emergency Management Agency;
   (B)   Require that the flood-carrying capacity is not diminished within the altered or relocated portion of said watercourse; and
   (C)   Where the watercourse is filled, impounded, dredged or diverted, or where levees or floodwalls are constructed require that the flood-carrying capacity not be diminished.
(1985 Code, § 11.06.030)