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
- 2155 more...
- 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
- ItemBB016604 - Northern Pacific Engineering Drawing: Repair to Stringer Conn, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016605 - Northern Pacific Engineering Drawing: Pin/Nuts/Ring Floor, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016606 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016607 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- ItemBB016608 - Northern Pacific Engineering Drawing: Shop Plan - Stringer Brace, Bridge 11 - Stillaguamish River, East of Oso, Washington, undated
- 5564 more...