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
- 7145 more...
- ItemBB029121 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Chord, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029122 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Hangers, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029123 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Post, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029124 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Brace, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029125 - Northern Pacific Engineering Drawing: Shop Plan - Diagonals, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029126 - Northern Pacific Engineering Drawing: Shop Plan - End Post, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029127 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029128 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB029129 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- 574 more...