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
- 1647 more...
- ItemBB025425 - Spokane, Portland and Seattle Railway Engineering Drawing: Marking Diagram, Bridge E126.9 - Willamette River, South of Harrisburg, Oregon, undated
- ItemBB025426 - Spokane, Portland and Seattle Railway Engineering Drawing: Bridge Locks/General Arrangement, Bridge E126.9 - Willamette River, South of Harrisburg, Oregon, undated
- ItemBB025427 - Spokane, Portland and Seattle Railway Engineering Drawing: Trolley Breaker Details, Bridge E126.9 - Willamette River, South of Harrisburg, Oregon, undated
- ItemBB025428 - Spokane, Portland and Seattle Railway Engineering Drawing: Trolley Breaker General Arrangement, Bridge E126.9 - Willamette River, South of Harrisburg, Oregon, undated
- ItemBB025429 - Spokane, Portland and Seattle Railway Engineering Drawing: Soundings, Bridge E126.9 - Willamette River, South of Harrisburg, Oregon, undated
- ItemBB025430 - Spokane, Portland and Seattle Railway Engineering Drawing: Replace Timber Bents, Bridge E134.8, South of Junction City, Oregon, 1968
- ItemBB025431 - Spokane, Portland and Seattle Railway Engineering Drawing: Proposed Bridge, Bridge S15.1 Canal, West of Lebanon, Oregon, 1930
- ItemBB025432 - Spokane, Portland and Seattle Railway Engineering Drawing: Concrete Plan/Steel Detail, Bridge S29.3, Sweet Home, Oregon, 1952
- ItemBB025434 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Bill of Material, Bridge S29.3, Sweet Home, Oregon, undated
- 2262 more...