Update fish passage facilities owned by Army COE. Project located at mile 24.3 of the White River. The project is to provide safe fish passage to all fish species, including three listed species. The dam in its cuThe existing fish passage facility is six miles downstream of Mud Mountain Dam (MMD). The system is comprised of a barrier structure (owned by Cascade Water Alliance (CWA)) which prevents upstream fish passage, a fish trap (owned by the Corps), and the fish release site (owned by the Corps) above the dam. An upstream trap and haul system around MMD was agreed upon in 1948 by the U.S. Army Corps of Engineers (Corps) and the Washington State Department of Fisheries as means to satisfy a mitigation requirement for the construction of the dam. The system maintains fish runs past MMD, which include Endangered Species Act (ESA) listed species since their listing, and allows the Muckleshoot Indian Tribe to gather brood stock for its adjacent hatchery. The current fish trap is 62 years old and the barrier structure was built in the early 1900s. The barrier structure requires frequent maintenance and repair via a cooperative agreement with CWA compromising an ever increasing proportion of MMD's Operations and Maintenance Funding (~20%). The fish trap and haul facility is aged but currently performs to its original design standards, though it does not meet modern fish trap criteria. In 2013 four trucks conducted a 24/7 operation from mid-August to mid-October to ensure passage of all fish that entered the trap facility.
rrent state is resulting in delay, injury and mortality of all species, particularly in odd years when pink salmon are abundant.