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
- 3571 more...
- ItemBB018158 - Northern Pacific Engineering Drawing: Reinforcing Bars, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018159 - Northern Pacific Engineering Drawing: Deck Waterproofing, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018160 - Northern Pacific Engineering Drawing: General Plan - 4th Ave, Bridge 1.1 - 4th Avenue, Spokane, Washington, 1915
- ItemBB018161 - Northern Pacific Engineering Drawing: General Plan/Stress Sheet, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018162 - Northern Pacific Engineering Drawing: Abutment/Pedestals, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018163 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018164 - Northern Pacific Engineering Drawing: Shop Plan - Columns, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018165 - Northern Pacific Engineering Drawing: Shop Plan - Cross Girder, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018166 - Northern Pacific Engineering Drawing: Shop Plan - Fascia Girder, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- 4148 more...