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
- 241 more...
- ItemBB014465 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 1 - Heins Creek, West of Naval Ammunition Depot Junction, Washington, undated
- ItemBB014466 - Northern Pacific Engineering Drawing: Structure Deck Details, Bridge 1 - Heins Creek, West of Naval Ammunition Depot Junction, Washington, undated
- ItemBB014467 - Northern Pacific Engineering Drawing: Structure Details - Piers, Bridge 1 - Heins Creek, West of Naval Ammunition Depot Junction, Washington, undated
- ItemBB014468 - Northern Pacific Engineering Drawing: Structure Piling Plan, Bridge 1 - Heins Creek, West of Naval Ammunition Depot Junction, Washington, undated
- ItemBB014469 - Northern Pacific Engineering Drawing: General Plan, Bridge 184 - 16 - Mile Creek, West of Clarkston, Montana, 1944
- ItemBB014470 - Northern Pacific Engineering Drawing: Detail of Abutments, Bridge 184 - 16 - Mile Creek, West of Clarkston, Montana, undated
- ItemBB014471 - Northern Pacific Engineering Drawing: Sidewalk and Railing, Bridge 184 - 16 - Mile Creek, West of Clarkston, Montana, undated
- ItemBB014472 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 184 - 16 - Mile Creek, West of Clarkston, Montana, undated
- ItemBB014473 - Northern Pacific Engineering Drawing: Details 75 Foot Through Plate Girder, Bridge 184 - 16 - Mile Creek, West of Clarkston, Montana, undated
- 7478 more...