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
- 3375 more...
- ItemBB017961 - Northern Pacific Engineering Drawing: Detail of Bents, Bridge 70.1 - Helena Street, Spokane, Washington, undated
- ItemBB017962 - Northern Pacific Engineering Drawing: Detail of Slabs, Bridge 70.1 - Helena Street, Spokane, Washington, undated
- ItemBB017963 - Northern Pacific Engineering Drawing: Detail of Rail, etc., Bridge 70.1 - Helena Street, Spokane, Washington, undated
- ItemBB017964 - Northern Pacific Engineering Drawing: West Abutment, Bridge 70.1 - Helena Street, Spokane, Washington, undated
- ItemBB017965 - Northern Pacific Engineering Drawing: East Abutment, Bridge 70.1 - Helena Street, Spokane, Washington, undated
- ItemBB017966 - Northern Pacific Engineering Drawing: General Plan/Napa Street, Bridge 69 - Napa Street , Spokane, Washington, 1916
- ItemBB017967 - Northern Pacific Engineering Drawing: Detail of Bents, Bridge 69 - Napa Street, Spokane, Washington, undated
- ItemBB017968 - Northern Pacific Engineering Drawing: Abutments, Bridge 69 - Napa Street, Spokane, Washington, undated
- ItemBB017969 - Northern Pacific Engineering Drawing: Cutting List Rods, Bridge 69 - Napa Street, Spokane, Washington, undated
- 4344 more...