Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3001 - Bridges
- 4 more...
- ItemWWAPC0491 - Columbia and Puget Sound Railroad bridge near Taylor, Washington, circa 1910.
- ItemWWAPCN0187 - Columbia & Puget Sound Railroad truss bridge at Maple Valley, Washington in November 1911.
- ItemWWASPSL1-025 - Southern Pacific and Oregon-Washigton Railroad & Navigation Company Original Steel Bridge Over the Willamette River, Portland, Oregon, undated
- ItemWWASPSL5-001 - Oregon Trunk Celilo Bridge at Wishram, Washington, undated
- ItemWWASPSL5-002 - Oregon Trunk Celilo Bridge at Wishram, Washington, undated
- ItemWWASPSL5-003 - Oregon Trunk Celilo Bridge at Wishram, Washington, undated
- ItemWWASPSL5-004 - Oregon Trunk Celilo Bridge at Wishram, Washington, October 1960
- ItemWWASPSL5-005 - Oregon Trunk Celilo Bridge at Wishram, Washington, October 1960
- ItemWWASPSL5-006 - Oregon Trunk Celilo Bridge at Wishram, Washington, July 11, 1954
- 6 more...