Grand Coulee Dam Contemporary Photographs

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June 30, 2011. Grand Coulee Dam operators released over 200,000 cfs downstream during an unusually large and late spring runoff. The spillway is carrying 33,800 cfs, while 167,000 cfs through the hydropower generators.

June 30, 2011. Grand Coulee Dam operators released over 200,000 cfs downstream during an unusually large and late spring runoff. The spillway is carrying 33,800 cfs, while 167,000 cfs through the hydropower generators.



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Last Updated: 10/2/23