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
- 2599 more...
- ItemBB017085 - Northern Pacific Engineering Drawing: Deck Plate Girder (DPG)S, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017086 - Northern Pacific Engineering Drawing: Present Position of River, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017087 - Northern Pacific Engineering Drawing: Present Position of River, Bridge 114.1 - Missoula River, West of Bonner, Montana, undated
- ItemBB017088 - Northern Pacific Engineering Drawing: Detail of Main Girder, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB017089 - Northern Pacific Engineering Drawing: Detail of Main Girder, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB017090 - Northern Pacific Engineering Drawing: Detail Floor Beam/Stringer, Bridge 91 - Hell Gate River, West of Nimrod, Montana, undated
- ItemBB017091 - Northern Pacific Engineering Drawing: Stress Sheet, Bridge 59 - Wynooche River, West of Montesano, Washington, undated
- ItemBB017092 - Northern Pacific Engineering Drawing: Detail of Girder, Bridge 59 - Wynooche River, West of Montesano, Washington, undated
- ItemBB017093 - Northern Pacific Engineering Drawing: Detail of Girder, Bridge 59 - Wynooche River, West of Montesano, Washington, undated
- 5120 more...