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
- 3528 more...
- ItemBB018114 - Northern Pacific Engineering Drawing: Shop Plan - Troughs, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018115 - Northern Pacific Engineering Drawing: Shop Plan - Troughs, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018116 - Northern Pacific Engineering Drawing: Shop Plan - Troughs, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018117 - Northern Pacific Engineering Drawing: Shop Plan - Troughs, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018118 - Northern Pacific Engineering Drawing: Shop Plan - Troughs, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018119 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018120 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018121 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- ItemBB018122 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0.12 - Maple Street, Spokane, Washington, undated
- 4191 more...