Wells Dam (47°56?43.44?N 119°51?57.6?W? / ?47.9454°N 119.866°W? / 47.9454; -119.866) is a hydroelectric dam located on the Columbia River, downstream from the confluence of the Okanogan River, Methow River, and the Columbia River in Washington State. The dam, associated structures, and machinery make up the Wells Hydroelectric Project. It is owned and operated by Douglas County Public Utility District.