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
- 3335 more...
- ItemBB026811 - Great Northern Engineering Drawing: Vicinity Map, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026812 - Great Northern Engineering Drawing: Protect Cribbing Pier 4, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026813 - Great Northern Engineering Drawing: Work at Pier 1, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026814 - Great Northern Engineering Drawing: Revision Plan Pier 3, Bridge 36 - Skagit River, North of Mount Vernon, Washington, 1907
- ItemBB026815 - Great Northern Engineering Drawing: Reference Points and Elevation, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026816 - Great Northern Engineering Drawing: Cross Section at Bridge 36, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026817 - Great Northern Engineering Drawing: Shop Plan - Stringers, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026818 - Great Northern Engineering Drawing: Water Elevations, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- ItemBB026819 - Great Northern Engineering Drawing: Contour Map and Profile, Bridge 36 - Skagit River, North of Mount Vernon, Washington, undated
- 657 more...