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
- 2077 more...
- ItemBB016518 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 209 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016519 - Northern Pacific Engineering Drawing: General Plan, Bridge 210 - Clark Fork River, West of Donlan, Montana, 1907
- ItemBB016520 - Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016521 - Northern Pacific Engineering Drawing: Excavate Pier/Abutment, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016522 - Northern Pacific Engineering Drawing: General Plan/Pier/Abutment, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016525 - Northern Pacific Engineering Drawing: General Falsework Plan, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016526 - Northern Pacific Engineering Drawing: Detail of Double Bents, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016527 - Northern Pacific Engineering Drawing: Detail Stringer End Posts, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016528 - Northern Pacific Engineering Drawing: Repair to End Posts, Bridge 210 - Clark Fork River, West of Donlan, Montana, undated
- 5642 more...