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
- 3181 more...
- ItemBB026653 - Great Northern Engineering Drawing: Steel Repairs, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1964
- ItemBB026656 - Great Northern Engineering Drawing: Pile Shear Pier, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026657 - Great Northern Engineering Drawing: Proposed Pier Protection, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- ItemBB026658 - Great Northern Engineering Drawing: Pier Reinforcement, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1915
- ItemBB026659 - Great Northern Engineering Drawing: Reinforcement Pier Number 4, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1920
- ItemBB026660 - Great Northern Engineering Drawing: General Plan, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1905
- ItemBB026661 - Great Northern Engineering Drawing: General Plan, Bridge 11 - Steamboat Slough, North of Delta, Washington, 1908
- ItemBB026662 - Great Northern Engineering Drawing: General Plan and Map, Bridge 11 - Steamboat Slough - Map, North of Delta, Washington, undated
- ItemBB026663 - Great Northern Engineering Drawing: Right of Way Plat, Bridge 11 - Steamboat Slough, North of Delta, Washington, undated
- 811 more...