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
- 2150 more...
- ItemBB016595 - Northern Pacific Engineering Drawing: Detail Portal Truss, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016596 - Northern Pacific Engineering Drawing: Detail of Floor Beam, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016597 - Northern Pacific Engineering Drawing: Erection Diagram, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016598 - Northern Pacific Engineering Drawing: Detail of Bearings, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016599 - Northern Pacific Engineering Drawing: Detail Eye Bar, etc., Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016600 - Northern Pacific Engineering Drawing: Detail of Intermediate Stringers, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016601 - Northern Pacific Engineering Drawing: Detail of End Stringers, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016602 - Northern Pacific Engineering Drawing: Detail of Chord/Posts, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016603 - Northern Pacific Engineering Drawing: Detail Post/Chord/Strut, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- 5569 more...