Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 4160 more...
- ItemBB018793 - Northern Pacific Engineering Drawing: Shop Plan - Portal/Strut, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018794 - Northern Pacific Engineering Drawing: Shop Plan - Laterals, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018795 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Lateral, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018796 - Northern Pacific Engineering Drawing: Shop Plan - End Bearings, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018797 - Northern Pacific Engineering Drawing: General Plan, Bridge 38 - Snohomish River, South of Snohomish, Washington, 1909
- ItemBB018798 - Northern Pacific Engineering Drawing: Single Truss/Center Bearing Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018799 - Northern Pacific Engineering Drawing: Detail of Truss, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018800 - Northern Pacific Engineering Drawing: Detail of Truss, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018801 - Northern Pacific Engineering Drawing: Detail of Floor Beam/Stringer, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- 3559 more...