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Environmental Sustainability Division

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Chandler Fish Handling Facility Yakima Basin Project, Bureau of Reclamation

The Chandler Fish Handling Facility is located about 1 mile from the head gate of the Chandler Canal near Prosser, Washington. To reduce the mortality of endangered salmonids, a series of drum screens have been placed across the irrigation canal to force the fish into a reduced volume of water that is returned to the Yakima River. PNNL conducted field studies of water velocities. The objective of the studies was to ascertain if mandated velocity criteria near the drum screens were being met. To augment these studies, PNNL scientists created a computational fluid dynamics model of the Chandler Fish Handling Facility forebay and applied it to several scenarios.

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