Little Goose Dam, Lake Bryan, and associated facilities are operated for Hydropower, Navigation, Fish & Wildlife, Recreation, Water Quality, and Irrigation. Little Goose Lock and Dam was the third of four dams constructed as part of the Lower Snake River Project, authorized in the Rivers and Harbors Act of 1945. Construction began in 1963, and three turbine units were operational in 1970. Three more turbine units were operational in 1978. Lake Bryan extends from the dam upstream for 37 miles to Lower Granite Dam.