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
- 2315 more...
- ItemBB030549 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030550 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030551 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030552 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030553 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030554 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030555 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030556 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Girders, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- ItemBB030557 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Girders, Bridge 304.4 - Cow Creek, North of Hooper, Washington, undated
- 1594 more...