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
- 2462 more...
- ItemBB016944 - Northern Pacific Engineering Drawing: Present Position of River, Bridge 90 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB016945 - Northern Pacific Engineering Drawing: General Plan/Detail of Pier, Bridge 91 - Hell Gate River, West of Nimrod, Montana, 1907
- ItemBB016946 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB016947 - Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB016948 - Northern Pacific Engineering Drawing: General Plan/Detail of Piers, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB016949 - Northern Pacific Engineering Drawing: Detail West Abutment, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB016950 - Northern Pacific Engineering Drawing: Pier 2 as Constructed, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB016951 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 91 - Hell Gate River, West of Nimrod, Montana, 1952
- ItemBB016952 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 91 - Hell Gate River, West of Nimrod, Montana, 1951
- 5257 more...