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
- 2958 more...
- ItemBB032792 - Spokane, Portland and Seattle Railway Engineering Drawing: Channel Paving, Bridge 44.3 - Woodard Creek, East of Skamania, Washington, undated
- ItemBB032793 - Spokane, Portland and Seattle Railway Engineering Drawing: Replace Stringer, Bridge 45.8 - Highway - Plan, East of Skamania, Washington, 1966
- ItemBB032794 - Spokane, Portland and Seattle Railway Engineering Drawing: Contour Map, Bridge 47.0 - Hamilton Creek, East of Skamania, Washington, undated
- ItemBB032795 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan Proposed Bridge 34, Bridge 47.9 - Hamilton Creek, East of Skamania, Washington, 1934
- ItemBB032797 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 47.0 - Hamilton Creek, East of Skamania, Washington, undated
- ItemBB032798 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 47.0 - Hamilton Creek, East of Skamania, Washington, undated
- ItemBB032799 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 47.0 - Hamilton Creek, East of Skamania, Washington, undated
- ItemBB032800 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Girder/Cross Frame, Bridge 47.0 - Hamilton Creek, East of Skamania, Washington, undated
- ItemBB032801 - Spokane, Portland and Seattle Railway Engineering Drawing: General Plan, Bridge 47.5 - Access Road, East of Skamania, Washington, undated
- 951 more...