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
- 5023 more...
- ItemBB019923 - Northern Pacific Engineering Drawing: General Masonry Plan, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB019924 - Northern Pacific Engineering Drawing: Detail - Piers, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB019925 - Northern Pacific Engineering Drawing: Pier Protection and Sheer Board, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB019926 - Northern Pacific Engineering Drawing: Details - Operators House, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB019927 - Northern Pacific Engineering Drawing: Protection - Fender - Pier 1, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB019928 - Northern Pacific Engineering Drawing: Wiring Diagram, Bridge 0.59 - Cowlitz River, Longview Junction, Washington, undated
- ItemBB019929 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019930 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, 1940
- ItemBB019931 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- 2696 more...