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
- 7137 more...
- ItemBB029111 - Northern Pacific Engineering Drawing: Drawbridge Rail, Bridge 53 - Willapa River, Raymond, Washington, undated
- ItemBB029114 - Northern Pacific Engineering Drawing: Shop Plan - Anchor Bolt, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029115 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029116 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029117 - Northern Pacific Engineering Drawing: Shop Plan - Erection Plan, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029118 - Northern Pacific Engineering Drawing: Shop Plan - Shoes, etc., Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029119 - Northern Pacific Engineering Drawing: Shop Plan - Hangers, etc., Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029120 - Northern Pacific Engineering Drawing: Shop Plan - Posts, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029121 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Chord, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- 582 more...