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
- 4008 more...
- ItemBB018638 - Northern Pacific Engineering Drawing: Shop Plan - Posts, Bridge 25 - Nisqually River, South of Nisqually, Washington, undated
- ItemBB018639 - Northern Pacific Engineering Drawing: Proposed Bridge West Boundary Crossing, Bridge 64 (48) - Union Pacific Railroad, West of Irwin, Washington, undated
- ItemBB018640 - Northern Pacific Engineering Drawing: Detail Reinforcement Concrete Slab, Bridge 64 (48) - Union Pacific Railroad, West of Irwin, Washington, undated
- ItemBB018641 - Northern Pacific Engineering Drawing: Detail Piers/Abutment, Bridge 64 (48) - Union Pacific Railroad, West of Irwin, Washington, undated
- ItemBB018642 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 100 (133) - Coweman River, South of Kelso, Washington, 1926
- ItemBB018643 - Northern Pacific Engineering Drawing: Shop Plan - Posts, Bridge 25 - Nisqually River, South of Nisqually, Washington, undated
- ItemBB018644 - Northern Pacific Engineering Drawing: Shop Plan - Post/Bracket, Bridge 25 - Nisqually River, South of Nisqually, Washington, undated
- ItemBB018645 - Northern Pacific Engineering Drawing: Shop Plan - End Post, Bridge 25 - Nisqually River, South of Nisqually, Washington, undated
- ItemBB018646 - Northern Pacific Engineering Drawing: Shop Plan - End Post, Bridge 25 - Nisqually River, South of Nisqually, Washington, undated
- 3711 more...