Railroad Archives Online
- ArkivD0063 - Walter W. Ainsworth Collection
- Serie005 - Pacific Coast Railroad Company
- Underserie014 - Photographs
- 003 - Railroads--Buildings and Structures
- 001 - Bridges
- 2 mer...
- ObjektWWAPC0444 - Pacific Coast Railroad bridge at Maple Valley, Washington in 1952.
- ObjektWWAPC0465 - Pacific Coast Railroad bridge at Henrys, Washington, circa 1990.
- ObjektWWAPC0477 - Pacific Coast Railroad bridge at Newcastle, Washington, circa 1928.
- ObjektWWAPCN0042 - Pacific Coast Railroad bridge at Maple Valley, Washington in 1943.
- ObjektWWAPCN0331 - Pacific Coast Railroad bridge at Maple Valley, Washington, circa 1940.