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
- 3156 more...
- ItemBB026628 - Great Northern Engineering Drawing: Shop Plan - Top Chord, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026629 - Great Northern Engineering Drawing: Shop Plan - Bottom Chord, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026630 - Great Northern Engineering Drawing: Shop Plan - Butt Chord, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026631 - Great Northern Engineering Drawing: Shop Plan - Vertical Posts, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026632 - Great Northern Engineering Drawing: Shop Plan - Diagonals, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026633 - Great Northern Engineering Drawing: Shop Plan - Floor Beam and Stringer, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026634 - Great Northern Engineering Drawing: Shop Plan - Port, Laterals, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026635 - Great Northern Engineering Drawing: Shop Plan - Bottom Laterals, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026636 - Great Northern Engineering Drawing: Shop Plan - Shoe and Rollers, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- 836 more...