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 3003 - Maintenance Facilities
- 718 more...
- ItemBB031107 - Spokane, Portland and Seattle Railway Engineering Drawing: Concrete Pit, Turntable, Astoria, Oregon, undated
- ItemBB031108 - Spokane, Portland and Seattle Railway Engineering Drawing: Rail Latch, Turntable, Astoria, Oregon, undated
- ItemBB031109 - Spokane, Portland and Seattle Railway Engineering Drawing: Match Marking Diagram, Turntable, Astoria, Oregon, undated
- ItemBB031110 - Spokane, Portland and Seattle Railway Engineering Drawing: Astoria Turntable, Turntable, Astoria, Oregon, undated
- ItemBB031111 - Spokane, Portland and Seattle Railway Engineering Drawing: Details - Main Girder, Turntable, Astoria, Oregon, undated
- ItemBB031112 - Spokane, Portland and Seattle Railway Engineering Drawing: Detail - Cross Girder, Turntable, Astoria, Oregon, undated
- ItemBB031113 - Spokane, Portland and Seattle Railway Engineering Drawing: Astoria Turntable, Turntable, Astoria, Oregon, undated
- ItemBB031114 - Spokane, Portland and Seattle Railway Engineering Drawing: Astoria Turntable, Turntable, Astoria, Oregon, undated
- ItemBB031115 - Spokane, Portland and Seattle Railway Engineering Drawing: Main Girders, Turntable, Astoria, Oregon, undated