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
- 2355 more...
- ItemBB030590 - Spokane, Portland and Seattle Railway Engineering Drawing: Overhead Highway, Bridge 332 - Overhead Highway, North of Rockwell, Washington, undated
- ItemBB030591 - Spokane, Portland and Seattle Railway Engineering Drawing: Overhead Highway, Bridge 332 - Overhead Highway, North of Rockwell, Washington, undated
- ItemBB030592 - Spokane, Portland and Seattle Railway Engineering Drawing: Overhead Highway, Bridge 332 - Overhead Highway, North of Rockwell, Washington, undated
- ItemBB030593 - Spokane, Portland and Seattle Railway Engineering Drawing: Overhead Highway, Bridge 333.6 - Overhead Highway, North of Rockwell, Washington, 1926
- ItemBB030594 - Spokane, Portland and Seattle Railway Engineering Drawing: Layout, Bridge 336.1 - Highway Undercrossing, North of Lamont, Washington, 1940
- ItemBB030595 - Spokane, Portland and Seattle Railway Engineering Drawing: Abutment Number 1, Bridge 336.1 - Highway Undercrossing, North of Lamont, Washington, undated
- ItemBB030596 - Spokane, Portland and Seattle Railway Engineering Drawing: Piers Number 2 and 3, Bridge 336.1 - Highway Undercrossing, North of Lamont, Washington, undated
- ItemBB030597 - Spokane, Portland and Seattle Railway Engineering Drawing: Abutment Number 4, Bridge 336.1 - Highway Undercrossing, North of Lamont, Washington, undated
- ItemBB030598 - Spokane, Portland and Seattle Railway Engineering Drawing: Structural Steel, Bridge 336.1 - Highway Undercrossing, North of Lamont, Washington, undated
- 1554 more...