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
- 2826 more...
- ItemBB017354 - Northern Pacific Engineering Drawing: List of Field Rivets, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017355 - Northern Pacific Engineering Drawing: List of Field Rivets, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017356 - Northern Pacific Engineering Drawing: Reinforcement Floor System, Bridge 38 - Willapa River, West of Labam, Washington, 1912
- ItemBB017357 - Northern Pacific Engineering Drawing: Reinforce - Cracked Post, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017358 - Northern Pacific Engineering Drawing: General Substructure Plan, Bridge 40 - Fork Prairie Creek, West of Labam, Washington, 1919
- ItemBB017359 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 40 - Fork Prairie Creek, West of Labam, Washington, undated
- ItemBB017360 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 40 - Fork Prairie Creek, West of Labam, Washington, undated
- ItemBB017361 - Northern Pacific Engineering Drawing: Detail 40 Foot Girder, Bridge 40 - Fork Prairie Creek, West of Labam, Washington, undated
- ItemBB017362 - Northern Pacific Engineering Drawing: Piers and Approaches, Bridge 35 - Fern Creek, West of Labam, Washington, 1919
- 4893 more...