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
- 3479 more...
- ItemBB033494 - Spokane, Portland and Seattle Railway Engineering Drawing: Locate of Points, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033495 - Spokane, Portland and Seattle Railway Engineering Drawing: Pier Footing Repair, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033496 - Spokane, Portland and Seattle Railway Engineering Drawing: East Abutment, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033500 - Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033501 - Spokane, Portland and Seattle Railway Engineering Drawing: Details of Ties, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033502 - Spokane, Portland and Seattle Railway Engineering Drawing: Details of Ties, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033503 - Spokane, Portland and Seattle Railway Engineering Drawing: Replace Ties, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, 1968
- ItemBB033504 - Spokane, Portland and Seattle Railway Engineering Drawing: 70 Foot Deck Plate, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- ItemBB033505 - Spokane, Portland and Seattle Railway Engineering Drawing: Details End Bearings, Bridge 7.4 - Columbia Slough, North of East Saint Johns, Oregon, undated
- 430 more...