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
- 1660 more...
- ItemBB016097 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous, Bridge 55 - Saslzer Creek, South of Centralia, Washington, undated
- ItemBB016098 - Northern Pacific Engineering Drawing: Rest Approach Span Bearing, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016099 - Northern Pacific Engineering Drawing: Steel Details, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016100 - Northern Pacific Engineering Drawing: General Plan Vertical Lift, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016101 - Northern Pacific Engineering Drawing: Replace Timbers/Approach, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016102 - Northern Pacific Engineering Drawing: Abutment/Anchor Bolt Layout, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016103 - Northern Pacific Engineering Drawing: Piers/Reinforcement Bar, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016104 - Northern Pacific Engineering Drawing: Remodeling Details, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- ItemBB016105 - Northern Pacific Engineering Drawing: Remodel Existing Spans, Bridge 14 - Chambers Creek, South of Titlow, Washington, undated
- 6059 more...