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
- 5861 more...
- ItemBB021925 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 4 - 49th Street, Tacoma, Washington, undated
- ItemBB021926 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 2A - Underpass, South of Renton, Washington, 1955
- ItemBB023501 - Northern Pacific Engineering Drawing: General and Masonry Plan, Bridge 148 - 9 - Mile Creek, North of Slayton, Montana, 1926
- ItemBB023502 - Northern Pacific Engineering Drawing: Details Triple Deck Plate Girder (DPG) Span, Bridge 148 - 9 - Mile Creek, North of Slayton, Montana, undated
- ItemBB023503 - Northern Pacific Engineering Drawing: Deck Renewal, Bridge 148 - 9 - Mile Creek, North of Slayton, Montana, 1951
- ItemBB025524 - Northern Pacific Engineering Drawing: Shop Plan - Tower Sheave, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025525 - Northern Pacific Engineering Drawing: Shop Plan - Material List, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025526 - Northern Pacific Engineering Drawing: Shop Plan - Tower Sheave, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- ItemBB025527 - Northern Pacific Engineering Drawing: Shop Plan - Line Shaft, Bridge 1 - Columbia River, West of Pasco, Washington, undated
- 1858 more...