Chittenden Locks help juvenile salmon on journey to Puget Sound
A balloon-tagged coho heads down the pipe that routes them into a prototype smolt slide for survivability and injury testing. U.S. Army Corps of Engineers officials continually look for ways to help salmon traverse the 100-year-old Hiram M. Chittenden Locks. After their trip down the slide the balloons inflate, bringing the fish to the surface where boat teams recovered and inspected them.

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Photo by: Nate Malmborg |  VIRIN: 170519-A-DT641-003.JPG