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
- 2192 more...
- ItemBB016637 - Northern Pacific Engineering Drawing: General Plan, Bridge 7 - Stillaguamish River, East of Arlington, Washington, 1900
- ItemBB016638 - Northern Pacific Engineering Drawing: Pier/Abutment, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016639 - Northern Pacific Engineering Drawing: General Plan/Detail Pier, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016640 - Northern Pacific Engineering Drawing: Erection Diagram, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016641 - Northern Pacific Engineering Drawing: Detail New Material/Changes, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016642 - Northern Pacific Engineering Drawing: Detail of Reinforcing, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016643 - Northern Pacific Engineering Drawing: Proposed Top Chord Repair, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016644 - Northern Pacific Engineering Drawing: Replace East Portal, Bridge 7 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB016645 - Northern Pacific Engineering Drawing: Pier/Falsework, Bridge 18 - Boulder River, East of Oso, Washington, 1942
- 5527 more...