Railroad Archives Online
- FondoD0027 - Timothy Miller Collection
- Serie007 - Spokane, Portland, and Seattle Railway
- Sottoserie009 - Engineering Records
- 008 - Physical plant drawing
- 001 - Bridges
- 2269 in più...
- Unità documentariaBB030503 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Trusses, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030504 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Diagonals - Beams, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030505 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Lateral Bridge Beam, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030506 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Stringer and Brace, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030507 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Towers, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030508 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Trusses, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030509 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Trusses, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030510 - Spokane, Portland and Seattle Railway Engineering Drawing: 70 Foot Deck Plate Girder (DPG), Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- Unità documentariaBB030511 - Spokane, Portland and Seattle Railway Engineering Drawing: 65 Foot - 80 Foot Inch Plate Girder, Bridge 291.4 - Oregon - Washington Railroad and Navigation Company Crossing, Washtucna, Washington, undated
- 1640 in più...