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
- 3059 more...
- ItemBB017600 - Northern Pacific Engineering Drawing: Shop Plan - Ball Plate, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017601 - Northern Pacific Engineering Drawing: Shop Plan - Ball Plate, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017602 - Northern Pacific Engineering Drawing: Shop Plan - Beam Set, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017603 - Northern Pacific Engineering Drawing: Shop Plan - Beam Set, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017604 - Northern Pacific Engineering Drawing: Shop Plan - Bolster Beams, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017605 - Northern Pacific Engineering Drawing: Shop Plan - Ball Plate, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017606 - Northern Pacific Engineering Drawing: Shop Plan - Ball Plate, Bridge 115 - Highway Overpass, Livingston, Montana, undated
- ItemBB017607 - Northern Pacific Engineering Drawing: General Plan and Falsework, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, 1949
- ItemBB017608 - Northern Pacific Engineering Drawing: Proposed Abutment Number 4, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- 4660 more...