Lake Kokanee, also known as Lower Lake Cushman, is a 150-acre (607,000 m²) reservoir on the North Fork of the Skokomish River in Mason County, Washington. The lake is maintained by Cushman Dam No. 2, providing electrical power to the Tacoma Power system. See also Kokanee (disambiguation) References External links Lake Levels and River Flows, Cushman Project Settlement, Tacoma Power Bodies of water of Mason County, Washington Kokanee Protected areas of Mason County, Washington Tacoma Public Utilities