Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 2944 more...
- ItemBB032778 - Spokane, Portland and Seattle Railway Engineering Drawing: Duncan Creek, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, undated
- ItemBB032779 - Spokane, Portland and Seattle Railway Engineering Drawing: Duncan Creek, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, undated
- ItemBB032780 - Spokane, Portland and Seattle Railway Engineering Drawing: Position of Bearing as Built, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, undated
- ItemBB032781 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plate Girder (DPG) Span, Bridge 31.3 - Woodard Creek, East of Washougal, Washington, undated
- ItemBB032782 - Spokane, Portland and Seattle Railway Engineering Drawing: Topographic Map, Bridge 44.3 - Woodard Creek, East of Skamania, Washington, undated
- ItemBB032783 - Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Bridge, Bridge 44.3 - Woodard Creek, East of Skamania, Washington, 1909
- ItemBB032784 - Spokane, Portland and Seattle Railway Engineering Drawing: Abutments, Bridge 44.3 - Woodard Creek, East of Skamania, Washington, undated
- ItemBB032785 - Spokane, Portland and Seattle Railway Engineering Drawing: Precast Shims, Bridge 44.3 - Woodard Creek, East of Skamania, Washington, undated
- ItemBB032786 - Spokane, Portland and Seattle Railway Engineering Drawing: Cutoff East Abutment, Bridge 44.3 - Woodard Creek, East of Skamania, Washington, undated
- 965 more...