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
- 3581 more...
- ItemBB018168 - Northern Pacific Engineering Drawing: Shop Plan - Fascia Girder, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018169 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1.1 - 4th Avenue, Spokane, Washington, undated
- ItemBB018170 - Northern Pacific Engineering Drawing: Location Plan, Bridge 1.2 - 5th Avenue, Spokane, Washington, undated
- ItemBB018171 - Northern Pacific Engineering Drawing: General Plan/5th/Connection, Bridge 1.2 - 5th Avenue, Spokane, Washington, 1915
- ItemBB018172 - Northern Pacific Engineering Drawing: General Plan/Detail Steel, Bridge 1.2 - 5th Avenue, Spokane, Washington, undated
- ItemBB018173 - Northern Pacific Engineering Drawing: Abutments, Bridge 1.2 - 5th Avenue, Spokane, Washington, undated
- ItemBB018174 - Northern Pacific Engineering Drawing: Slabs/Bents, Bridge 1.2 - 5th Avenue, Spokane, Washington, undated
- ItemBB018175 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1.2 - 5th Avenue, Spokane, Washington, undated
- ItemBB018176 - Northern Pacific Engineering Drawing: General Plan, Bridge 1.2 - 5th Avenue(Shoofly), Spokane, Washington, undated
- 4138 more...