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
- 6123 more...
- ItemBB026983 - Northern Pacific Engineering Drawing: Footings Column 1, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026984 - Northern Pacific Engineering Drawing: Plan of Piers Timber, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026985 - Northern Pacific Engineering Drawing: Girder Supporting Fixed Beam 6 - 2, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026986 - Northern Pacific Engineering Drawing: Pipes and Footings for Drawing, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026987 - Northern Pacific Engineering Drawing: Revised Column Footings, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, 1911
- ItemBB026988 - Northern Pacific Engineering Drawing: Map, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026989 - Northern Pacific Engineering Drawing: Deck Details at Street Car Rails, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB026990 - Northern Pacific Engineering Drawing: Plan Column Number 1 Brackets, Bridge 0.2 - 4th Avenue Viaduct, Seattle, Washington, undated
- ItemBB027872 - Northern Pacific Engineering Drawing: Shop Plan - General Detail, Bridge 53 - Willapa River, Raymond, Washington, undated
- 1596 more...