lower granite dam
In January of 2020, USACE finished construction of a PIT tag monitoring array in Lower Granite dam’s Spillbay 1. This array of antennas and receivers allows researchers to detect PIT tagged fish passing over the removable spillway weir. This allows researchers to track the juvenile fish that don’t pass Lower Granite via the juvenile bypass system.

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Photo by: Hannah Mitchell |  VIRIN: 230825-A-QM295-0001.JPG