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
- 2933 more...
- ItemBB032765 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Frame Plan, Bridge 31.3 - Hathaway Creek, East of Washougal, Washington, undated
- ItemBB032766 - Spokane, Portland and Seattle Railway Engineering Drawing: Cross Plan, Bridge 31.3 - Hathaway Creek, East of Washougal, Washington, undated
- ItemBB032767 - Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plate Girder (DPG) Span, Bridge 31.3 - Hathaway Creek, East of Washougal, Washington, undated
- ItemBB032768 - Spokane, Portland and Seattle Railway Engineering Drawing: Bed Plates, Bridge 31.3 - Hathaway Creek, East of Washougal, Washington, undated
- ItemBB032769 - Spokane, Portland and Seattle Railway Engineering Drawing: Shims for Girder, Bridge 31.3 - Hathaway Creek, East of Washougal, Washington, undated
- ItemBB032770 - Spokane, Portland and Seattle Railway Engineering Drawing: Topographical Map, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, undated
- ItemBB032771 - Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutment, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, undated
- ItemBB032772 - Spokane, Portland and Seattle Railway Engineering Drawing: Plan of Abutment, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, undated
- ItemBB032773 - Spokane, Portland and Seattle Railway Engineering Drawing: Renew Base Plate, Bridge 42.7 - Duncan Creek, East of Skamania, Washington, 1963
- 976 more...