Northern Pacific bascule bridge open over the Lake Washington Ship Canal at Seattle, Washington, circa 1928. This bridge at Fremont was east of the Great Northern bridge at Ballard. Photo by J.A. Turner. Other Subject Classes: bascule bridge, landscape

Northern Pacific bascule bridge over Lake Washington Ship Canal between Fremont and Ballard in Seattle, Washington, circa 1928. Approach to Fremont bridge is at lower right; NP bridge is down the canal at left. Photo by J.A. Turner. Other Subject Classes: bascule bridge, landscape

A train at the Northern Pacific bascule bridge over the Lake Washington Ship Canal at Seattle, Washington, circa 1946. The view is looking southwest from Fremont at Interbay and the Magnolia ridge. Photo by J.A. Turner. Other Subject Classes: bascule bridge, landscape

Northern Pacific bridge 110 at Deming, Washington. Looking northwest from Washington State Highway 9 bridge to bridge 110 over Nooksack River; photograph sequence TRWahl0393-0390. Other subject categories: Bridge-Truss, River, Structure

Northern Pacific bridge 104 at Acme, Washington. bridge 104 over south fork of Nooksack River. Other subject categories: Bridge-Truss, River, Structure

Northern Pacific bridge 104 at Acme, Washington. bridge 104 over south fork of Nooksack River. Other subject categories: Bridge-Truss, River, Structure

Northern Pacific bridge 110 at Deming, Washington. Looking southwest from Washington State Highway 9 bridge to bridge 110 over Nooksack River; photograph sequence TRWahl0393-0390. Other subject categories: Bridge-Truss, River, Structure

Northern Pacific bridge 110 at Deming, Washington. Looking southwest from Washington State Highway 9 bridge to bridge 110 over Nooksack River; photograph sequence TRWahl0393-0390. Other subject categories: Bridge-Truss, River, Structure

Northern Pacific bridge 61.1 at Arlington, Washington. Looking northeast at bridge 61.1 over Stillaguamish River; Washington State Highway 9 to the left; photograph sequence TRWahl0213, 0247-0249. Other subject categories: Bridge-Truss, River, Structure

Northern Pacific bridge 61.1 at Arlington, Washington. Close-up of pier of bridge 61.1 over Stillaguamish River; photograph sequence TRWahl0213, 0247-0249. Other subject categories: Bridge-Plate Girder, pier, Structure