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
- 2823 more...
- ItemBB017351 - Northern Pacific Engineering Drawing: Shop Plan - 120 Foot Span, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017352 - Northern Pacific Engineering Drawing: Shop Plan - Beams - Stringers, Bridge 38 - Willapa River, West of Labam, Washington, undated
- ItemBB017353 - Northern Pacific Engineering Drawing: Shop Plan - Laterals - Stringers, Bridge 38 - Willapa River, West of Labam, Washington, undated
- 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
- 4896 more...