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
- 1516 more...
- ItemBB015923 - Northern Pacific Engineering Drawing: Structural Steel Support, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015924 - Northern Pacific Engineering Drawing: Shaft/Girder Details, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015925 - Northern Pacific Engineering Drawing: Machinery Layout, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015926 - Northern Pacific Engineering Drawing: Diagram of Marking, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015927 - Northern Pacific Engineering Drawing: New Lateral, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015928 - Northern Pacific Engineering Drawing: Shop Plan - Piers, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015929 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Lateral, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015930 - Northern Pacific Engineering Drawing: Shop Plan - Anchor Bolt, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB015931 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- 6203 more...