State Route 25 (SR 25), named the Coulee Reservoir Highway, is a 121.17-mile (195.00 km) long state highway serving communities in Lincoln and Stevens counties in the U.S. state of Washington. The highway begins at an intersection with U.S. Route 2 (US 2) east of Davenport and continues northwest to cross the Spokane River on the Spokane River Bridge. From the bridge, SR 25 parallels the Columbia River and Franklin D.