Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 3170 more...
- ItemBB026642 - Great Northern Engineering Drawing: General Plan, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026643 - Great Northern Engineering Drawing: Balance Wheels, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026644 - Great Northern Engineering Drawing: General Plan - Bridge Number 11, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026645 - Great Northern Engineering Drawing: Deck Plan, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1932
- ItemBB026646 - Great Northern Engineering Drawing: Repairs - Pier Number 5, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1951
- ItemBB026647 - Great Northern Engineering Drawing: Deck Plan, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1957
- ItemBB026648 - Great Northern Engineering Drawing: Tie Details, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026649 - Great Northern Engineering Drawing: Shim Plan, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026650 - Great Northern Engineering Drawing: Fabreeka Pads and Plates, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- 822 more...