Burlington Northern viaduct at Weston, Washington, circa 1980. Steel viaduct with Boy Scout troop. Photo by J.M. Fredrickson. Other Subject Classes: bridge, people

Burlington Northern viaduct at Weston, Washington, on June 8, 1970. Steel viaduct, man standing on former NP right of way. Photo by J.M. Fredrickson. Other Subject Classes: bridge, people, railroad right of way

Burlington Northern viaduct at Weston, Washington, on June 8, 1970. View of steel viaduct from below, unidentified man. Photo by J.M. Fredrickson. Other Subject Classes: bridge, people

Northern Pacific viaduct at Weston, Washington, circa 1914. Viaduct nearing completion, construction cranes, workers, approaching passenger train. Photo by Alma Floberg, J.M. Fredrickson collection.. Other Subject Classes: bridge, crane, construction worker, passenger train

Northern Pacific viaduct at Weston, Washington, circa 1914. Steel viaduct under construction in snow. Photo by Alma Floberg, J.M. Fredrickson collection. Other Subject Classes: bridge

Northern Pacific viaduct at Weston, Washington, circa 1914. Viaduct nearing completion, construction cranes, workers, approaching passenger train. Photo by Alma Floberg, J.M. Fredrickson collection.. Other Subject Classes: bridge, crane, construction worker, passenger train

Northern Pacific viaduct at Weston, Washington, circa 1914. Steel viaduct under construction in snow. Photo by Alma Floberg, J.M. Fredrickson collection. Other Subject Classes: bridge