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McNary Dam Location: Umatilla, Oregon Columbia River mile: 292 Operator: U.S. Army Corps of Engineers Type: Run of river dam and reservoir Completed: 1957 (14 turbine units) Generating capacity: 980 megawatts Juvenile fish passage facilities: Screens on all units; bypass system to tailwater; fish collection and transportation facilities; fish run monitoring station Adult fish passage facilities: Two fish ladders with fish counting stations and adult PIT tag detection were installed in 2002 Additional Notes: McNary’s juvenile fish bypass system was completed in 1981, upgraded in 1994, and longer screens were installed in 1997. More info about this dam (off-site link)