 Becoming concurrent with US 2, the road becomes Broadway Street and enters Reardan. SR 231 turns north at Aspen Street and crosses the Eastern Washington Gateway Railroad and a marsh via a causeway. As Spring Creek Road, the highway travels northwest parallel to Spring Creek into Spring Creek Canyon. After the canyon, the roadway crosses the Spokane River on the Spokane River Bridge at Long Lake Dam, the border between Lincoln and Stevens counties, west of Little Falls Dam and Long Lake. Nearly a mile north of the bridge, SR 231 intersects SR 291, a connector to Spokane. After the intersection, the highway travels north through the community of Ford and continues through a valley into Springdale. Within Springdale, the roadway is named Second Street and intersects SR 292, which connects east to US 395 near Loon Lake. After crossing a BNSF Railway track, Second Street turns west as Shaffer Street and passes the Springdale Community Health Center, the local medical clinic. SR 231 crosses Sheep Creek and the same railway as Second Street and leaves Springdale, parallel to the railroad, into a valley. The highway intersects former SR 232 and ends at an intersection with US 395 4.27 miles (6.87 km) south of Chewelah.
