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
- 1563 more...
- ItemBB015970 - Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015971 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015972 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015973 - Northern Pacific Engineering Drawing: Shop Plan - Top Chord, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015974 - Northern Pacific Engineering Drawing: Shop Plan - Verticals, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015975 - Northern Pacific Engineering Drawing: Shop Plan - Verticals, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015976 - Northern Pacific Engineering Drawing: Shop Plan - Verticals, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015977 - Northern Pacific Engineering Drawing: Shop Plan - Verticals, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015978 - Northern Pacific Engineering Drawing: Shop Plan - Top Lateral, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- 6156 more...