Great Northern Fort Wright trestle over the Spokane River, 1937. Photo by Al Haij.

SP&S an American Locomotive Company (ALCO) 'Century Series' diesel locomotives with a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S diesel locomotive Number 303, an American Locomotive Company (ALCO) C-424, leads a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S an American Locomotive Company (ALCO) 'Century Series' diesel locomotives with a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S an American Locomotive Company (ALCO) 'Century Series' diesel locomotives with a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S 4-8-4 steam locomotive Number 700, Class E-1, with Train Number 4 on the Fort Wright trestle, July 21, 1950. Photo by Phillip C. Johnson.

SP&S 4-8-4 steam locomotive Number 702, Class E-1, with Train Number 2 on the Fort Wright trestle, May 2, 1941. Photo by Warren McGee.

SP&S trestle over Indian Canyon at Spokane, Washington, circa 1907.

Union Pacific Railroad bridge at Spokane, Washington, undated. The photo envelope lists Havermale. Photo by Jack Flagg, J.M. Fredrickson collection. Other Subject Classes: track, bridge, station.

Union Pacific Railroad bridge at Spokane, Washington, undated. The photo envelope lists Havermale. Photo by Jack Flagg, J.M. Fredrickson collection. Other Subject Classes: track, bridge, station.