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
- 4168 more...
- ItemBB018801 - Northern Pacific Engineering Drawing: Detail of Floor Beam/Stringer, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018802 - Northern Pacific Engineering Drawing: Detail of Center Bearing, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018803 - Northern Pacific Engineering Drawing: Detail of Turn Machinery, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018804 - Northern Pacific Engineering Drawing: Detail of End Lifts, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018805 - Northern Pacific Engineering Drawing: Detail of End Lifts, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018806 - Northern Pacific Engineering Drawing: Detail of Wedges, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018807 - Northern Pacific Engineering Drawing: Detail of Rail Locks, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018808 - Northern Pacific Engineering Drawing: Sketch Stairs/House Platform, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018809 - Northern Pacific Engineering Drawing: Detail of Truss, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- 3551 more...