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
- 2491 more...
- ItemBB016973 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, 1948
- ItemBB016974 - Northern Pacific Engineering Drawing: Topgirder Spans Double Truss, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016975 - Northern Pacific Engineering Drawing: Detail of Floor Beam/Stringer, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016976 - Northern Pacific Engineering Drawing: Detail of End Bearings, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016977 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016978 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, etc., Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016979 - Northern Pacific Engineering Drawing: Shop Plan - Roller Bed, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016980 - Northern Pacific Engineering Drawing: Marking Plan Northern Pacific Old Girder, Bridge 59 (98) - Hell Gate River, West of Phosphate, Montana, undated
- ItemBB016981 - Northern Pacific Engineering Drawing: Masonry Design, Bridge 59.1 (99) - Hell Gate River, West of Phosphate, Montana, undated
- 5228 more...