North Dam, Embankment dam in Grant County, United States.

North Dam is an earth-fill embankment dam near Grand Coulee in Grant County, Washington, with a maximum height of 145 feet and a crest length of 1,400 feet. Its crest sits at elevation 1,580 feet, 10 feet above the maximum water level of Banks Lake, which it creates together with Dry Falls Dam about 22 miles southwest. Near its left abutment is the entrance to the feeder canal of the Columbia Basin Project.

The dam was completed in 1951 as part of a regional water management project. Its development responded to the need for reliable water supply to support farming and communities in the area.

The dam forms Banks Lake with Dry Falls Dam, supporting the regional agricultural development through the Columbia Basin Project's irrigation systems.

The dam lies just outside Grand Coulee in Grant County; its crest is 1,400 feet long and 145 feet high, with the top at elevation 1,580 feet. The feeder canal entrance sits near the dam's left abutment, where water moves between Banks Lake and the Grand Coulee pump-generating plant. Both North and Dry Falls dams keep 10 feet of freeboard against waves driven by high winds.

The system connects to multiple water storage facilities and pump stations, making it part of a complex network. This interconnection shows how individual structures work together to move water across long distances.