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
- 4036 more...
- ItemBB018666 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018667 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018668 - Northern Pacific Engineering Drawing: Shop Plan - Laterals, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018669 - Northern Pacific Engineering Drawing: Replace Stringer Brace/Strut, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018670 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018671 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018672 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018673 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- ItemBB018674 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 100 (133) - Coweman River, South of Kelso, Washington, undated
- 3683 more...