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
- 826 more...
- ItemBB015102 - Northern Pacific Engineering Drawing: Replace With Larger Lift, Bridge 36.8 - West Waterway, West Seattle, Washington, undated
- ItemBB015103 - Northern Pacific Engineering Drawing: General Plan, Bridge 23 - Highway, West of Dryad, Washington, 1931
- ItemBB015104 - Northern Pacific Engineering Drawing: Detail of Structural Steel, Bridge 21 - Highway, West of Dryad, Washington, undated
- ItemBB015105 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 21 - Highway, West of Dryad, Washington, undated
- ItemBB015106 - Northern Pacific Engineering Drawing: Falsework Plan, Bridge 21 - Highway, West of Dryad, Washington, undated
- ItemBB015107 - Northern Pacific Engineering Drawing: Raising Plan, Bridge 21 - Highway, West of Dryad, Washington, undated
- ItemBB015108 - Northern Pacific Engineering Drawing: Concrete Detail/Beam/Material, Bridge 21 - Highway, West of Dryad, Washington, undated
- ItemBB015109 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 21 - Highway, West of Dryad, Washington, undated
- ItemBB015110 - Northern Pacific Engineering Drawing: Shop Plan - Girder, etc., Bridge 21 - Highway, West of Dryad, Washington, undated
- 6893 more...