Great Northern Cascade Tunnel Portal at Scenic, Washington, 1999. Photograph by George Werkema.

Great Northern Cascade Tunnel Portal at Scenic, Washington, 1982. Photograph by George Werkema.

Great Northern Cascade Tunnel Portal at Scenic, Washington, 1982. Photograph by George Werkema.

Great Northern bridge at Bellingham, Washington. Detail of concrete pier for bridge 59. Other subject categories: Bridge-Plate Girder, Bridge-Piers, Structure

Great Northern bridge 59 at Bellingham, Washington. Close-up of base of one tower for bridge 59. Other subject categories: Bridge-Plate Girder, Structure

Great Northern bridge at Bellingham, Washington. Family shot with shore end of Olympic Portland Cement Company spur on pilings in background; photograph sequence TRWahl0298-0302. Other subject categories: Bridge-Trestle, Structure

Great Northern bridge at Bellingham, Washington. Looking south along east side of Great Northern bridge 59 from Olympic Portland Cement Company track. Other subject categories: Bridge-Plate Girder, Structure

Great Northern bridge at Bellingham, Washington. Family shot with shore end of Olympic Portland Cement Company spur on pilings in background; photograph sequence TRWahl0298-0302. Other subject categories: Bridge-Trestle, Structure

Great Northern bridge 59 at Bellingham, Washington. Looking southeast at bridge 59. Other subject categories: Bridge-Plate Girder, Structure

Great Northern bridge 59 at Bellingham, Washington. Looking south from north end of bridge 59 along main track. Other subject categories: Bridge-Plate Girder, Structure