• White River
  • Washougal River
  • Yakima River
White River

Whooshh Success Story: Moving Pink Salmon Using a Volitional Entry System

CONSORTIUM OF ORGANIZATIONS INCLUDING THE U.S. ARMY CORPS OF ENGINEERS, THE PUYALLUP TRIBE, & CONSERVATION ORGANIZATIONS                                                    


The Challenge: The Mud Mountain Dam on Washington’s White River serves as a barrier to migrating pink and Chinook salmon. In some years, Pinks return in such staggering numbers that they block passage of the endangered Chinooks. Trying to keep up with the millions of Pink salmon has, in the past, resulted in massive Pink salmon die-offs.


In 2014, however, a consortium of groups decided to take action and find a solution to this problem. These groups, including the Washington (State) Chapter of Trout Unlimited, the Puyallup Tribe, Cascade Water Alliance, U.S. Army Corps of Engineers, NOAA/NMFS and others, sought the advice of Whooshh to see if a Whooshh system could work as a tool to separate the migrating Pinks from the ESA Chinooks.


The Solution: Whooshh Innovations constructed a side channel to “draw” Pink salmon into the current into a raceway. From there, the fish followed the current into an awaiting Whooshh system, where they were “whooshed” into a waiting tanker truck to be moved upriver.

Washougal River
Yakima River