Grand Coulee Dam via the Pump-Generating Plant's diameter pipes from Lake Roosevelt to a feeder canal. From the feeder canal, the water is transferred to Banks Lake which has an active storage of . The plant's twelve 65,000–70,000 horsepower pumps can transfer up to to the lake. Currently, the Columbia Basin Project irrigates with a potential for . Over 60 different crops are grown within the project and distributed throughout the United States. Grand Coulee Dam supports four different power houses containing 33 hydroelectric generators. The original Left and Right Powerhouses contain 18 main generators and the Left has an additional three service
Grand Coulee, Washington Grand Coulee, Washington Grand Coulee is a city in Grant County, Washington, United States. The population was 988 at the 2010 census. Grand Coulee was officially incorporated on November 6, 1935. It is located above the Grand Coulee Dam and next to North Dam. Grand Coulee is located at (47.939706, -119.001597). According to the United States Census Bureau, the city has a total area of , of which, is land and is water. As of the census of 2010, there were 988 people, 474 households, and 246 families residing in the city. The population density was . There were 554