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
- 3653 more...
- ItemBB018256 - Northern Pacific Engineering Drawing: General Elevation/Plan, Bridge 55 - Trout Creek, West of Trout Creek, Montana, 1958
- ItemBB018257 - Northern Pacific Engineering Drawing: Slope Protection, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018258 - Northern Pacific Engineering Drawing: Pier Bases, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018259 - Northern Pacific Engineering Drawing: Pier Shafts, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018260 - Northern Pacific Engineering Drawing: Bearing Details, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018261 - Northern Pacific Engineering Drawing: Bar List/Miscellaneous Details, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018262 - Northern Pacific Engineering Drawing: General Plan/Detail Pier, Bridge 55 - Trout Creek, West of Trout Creek, Montana, 1907
- ItemBB018263 - Northern Pacific Engineering Drawing: End Approaches, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018264 - Northern Pacific Engineering Drawing: Detail of Pier, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- 4066 more...