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
- 2404 more...
- ItemBB016855 - Northern Pacific Engineering Drawing: Repair to Rack Rotator, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- ItemBB016856 - Northern Pacific Engineering Drawing: Repairs to Portal, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- ItemBB016857 - Northern Pacific Engineering Drawing: Detail Abutment Proposed Bridge, Bridge 209, West of Townsend, Montana, undated
- ItemBB016858 - Northern Pacific Engineering Drawing: Plate Trainman Walk North Side, Bridge 209, West of Townsend, Montana, undated
- ItemBB016859 - Northern Pacific Engineering Drawing: General Plan, Bridge 10 - Highway, South of Wilburton, Washington, 1966
- ItemBB016860 - Northern Pacific Engineering Drawing: Trestle Details, Bridge 10 - Highway, South of Wilburton, Washington, undated
- ItemBB016861 - Northern Pacific Engineering Drawing: Skew Bent When Re - Driving Bents, Bridge 6.1 - May Creek, South of Quendall, Washington, 1967
- ItemBB016862 - Northern Pacific Engineering Drawing: Single Truss Through Pin, Bridge 104 - Nooksack River, North of Acme, Washington, undated
- ItemBB016863 - Northern Pacific Engineering Drawing: Detail End Post/Chord, Bridge 104 - Nooksack River, North of Acme, Washington, undated
- 5315 more...