Nason Creek Weir. Many of the fish hauled by tank truck from Rock Island Dam fish collectors were placed in Nason Creek for subsequent spawning. This weir across the creek was installed to prevent these adult spawners from dropping back down the creek into the Columbia River and resuming their original migration route.

Image ID: fish5907, NOAA's Historic Fisheries Collection
Location: Washington, Nason Creek
Photo Date: 1939
Photographer: Z. E. Parkhurst
Credit: NOAA Central Library Historical Fisheries Collection; Columbia River Salmon and Steelhead Salvage - Grand Coulee Project

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