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
- 2812 more...
- ItemBB017309 - Northern Pacific Engineering Drawing: Structural Details, Bridge 0.1, Shelton, Washington, undated
- ItemBB017341 - Northern Pacific Engineering Drawing: General Plan, Bridge 60 - Green River, West of Lester, Washington, 1897
- ItemBB017342 - Northern Pacific Engineering Drawing: General Plan and Falsework, Bridge 38 - Willapa River, West of Labam, Washington, 1927
- ItemBB017343 - Northern Pacific Engineering Drawing: Steel Details - 120 Foot Truss, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017344 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017345 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017346 - Northern Pacific Engineering Drawing: Standard Plan - 120 Foot Span, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017347 - Northern Pacific Engineering Drawing: 120 Foot Pony Truss, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017348 - Northern Pacific Engineering Drawing: Tunnels - 120 Foot Span, Bridge 38 - Willapa River, West of Labam, Washington, undated
- 4907 more...