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
- 3664 more...
- ItemBB018267 - Northern Pacific Engineering Drawing: Timber Approach Trestle, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018268 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Trout Creek, West of Trout Creek, Montana, 1939
- ItemBB018269 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 55 - Trout Creek, West of Trout Creek, Montana, 1931
- ItemBB018270 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018271 - Northern Pacific Engineering Drawing: Shop Plan - Columns, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018272 - Northern Pacific Engineering Drawing: Shop Plan - Columns, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018273 - Northern Pacific Engineering Drawing: Shop Plan - Column, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018274 - Northern Pacific Engineering Drawing: Shop Plan - Bracing, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- ItemBB018275 - Northern Pacific Engineering Drawing: Shop Plan - Girder Spans, Bridge 55 - Trout Creek, West of Trout Creek, Montana, undated
- 4055 more...