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
- 4861 more...
- ItemBB019732 - Northern Pacific Engineering Drawing: Installation Landing/Handrail, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- ItemBB019733 - Northern Pacific Engineering Drawing: Drawbridge Rail Key, Bridge 72.2 - Hoquiam River, West of Aberdeen, Washington, undated
- ItemBB019734 - Northern Pacific Engineering Drawing: Pile Abutment Through Plate Girder, Bridge 41 - Porter Creek, West of Oakville, Washington, 1907
- ItemBB019735 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 41 - Porter Creek, West of Oakville, Washington, 1948
- ItemBB019736 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 41 - Porter Creek, West of Oakville, Washington, 1938
- ItemBB019737 - Northern Pacific Engineering Drawing: Details/Plans, Bridge 30 - Mullen Road, South of Kyro, Washington, undated
- ItemBB019738 - Northern Pacific Engineering Drawing: Details/Plans, Bridge 30 - Mullen Road, South of Kyro, Washington, undated
- ItemBB019739 - Northern Pacific Engineering Drawing: Details/Plans, Bridge 30 - Mullen Road, South of Kyro, Washington, undated
- ItemBB019740 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 30 - Mullen Road, South of Kyro, Washington, 1907
- 2858 more...