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
- 6084 more...
- ItemBB026944 - Northern Pacific Engineering Drawing: Shop Plan - Girder and Brackets, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026945 - Northern Pacific Engineering Drawing: Shop Plan - Girder and Brackets, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026946 - Northern Pacific Engineering Drawing: Shop Plan - Girder and Brackets, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026947 - Northern Pacific Engineering Drawing: General Plan, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026948 - Northern Pacific Engineering Drawing: General Plan, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026949 - Northern Pacific Engineering Drawing: General Plan, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026950 - Northern Pacific Engineering Drawing: General Plan, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026951 - Northern Pacific Engineering Drawing: General Plan, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026952 - Northern Pacific Engineering Drawing: General Plan, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- 1635 more...