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
- 4534 more...
- ItemBB019219 - Northern Pacific Engineering Drawing: Shop Plan - Grating Detail, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB019220 - Northern Pacific Engineering Drawing: Shop Plan - Bridges, Bridge 73 - Clark Fork River, West of Noxon, Montana, undated
- ItemBB019221 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, 1950
- ItemBB019222 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, 1950
- ItemBB019223 - Northern Pacific Engineering Drawing: Shop Plan - Girder/Lateral, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019224 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame/Miscellaneous, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019225 - Northern Pacific Engineering Drawing: Shop Plan - Trusses, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019226 - Northern Pacific Engineering Drawing: Shop Plan - Trusses, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019227 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Stringer, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- 3185 more...