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
- 6053 more...
- ItemBB026913 - Northern Pacific Engineering Drawing: Details of Bents 1 to 6, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026914 - Northern Pacific Engineering Drawing: Plan of Bents 7 to 12, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026915 - Northern Pacific Engineering Drawing: Plan Bents 13 to 25, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026916 - Northern Pacific Engineering Drawing: Plan Bents 26 - 35 and 37, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026917 - Northern Pacific Engineering Drawing: Plan of Bents, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026918 - Northern Pacific Engineering Drawing: Plan Bents 44 to 47, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026919 - Northern Pacific Engineering Drawing: Plan Bents 48 to 50, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026920 - Northern Pacific Engineering Drawing: Plan of Bents, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026921 - Northern Pacific Engineering Drawing: Plan Bents 57 to 59, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- 1666 more...