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
- 2288 more...
- ItemBB016738 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 62.1 - Spokane River, West of Trentwood, Washington, 1940
- ItemBB016739 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 62.1 - Spokane River, West of Trentwood, Washington, 1940
- ItemBB016740 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 62.1 - Spokane River, West of Trentwood, Washington, 1940
- ItemBB016741 - Northern Pacific Engineering Drawing: Stress Sheet, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016742 - Northern Pacific Engineering Drawing: Detail 200 Foot Deck Truss, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016743 - Northern Pacific Engineering Drawing: Detail 200 Foot Deck Truss, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016744 - Northern Pacific Engineering Drawing: Transverse Section Truss, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016745 - Northern Pacific Engineering Drawing: Detail Stringer Truss, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016746 - Northern Pacific Engineering Drawing: Detail of Bearing, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- 5431 more...