Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series001 - Burlington Northern Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 69 more...
- ItemBB016524 - Burlington Northern Engineering Drawing: Bill of Material/Tie Detail, Bridge 210 - Clark Fork River (formerly Northern Pacific), West of Donlan, Montana, 1980
- ItemBB016542 - Burlington Northern Engineering Drawing: Falsework, Bridge 197 - Saint Regis River (formerly Northern Pacific), Saint Regis, Montana, 1972
- ItemBB016556 - Burlington Northern Engineering Drawing: Deck Plan, Bridge 218 - Clark Fork River (formerly Northern Pacific), West of Quinns, Montana, 1977
- ItemBB016716 - Burlington Northern Engineering Drawing: Tie Plan, Bridge 26 - Power Tail Race (formerly Northern Pacific), South of Auburn, Washington, 1972
- ItemBB016774 - Burlington Northern Engineering Drawing: Deck Plan, Bridge 2 - Chehalis River (formerly Northern Pacific), Washington, 1978
- ItemBB016934 - Burlington Northern Engineering Drawing: Deck Plan, Bridge 76 - Hell Gate River (formerly Northern Pacific), West of Drummond, Montana, 1978
- ItemBB016987 - Burlington Northern Engineering Drawing: Deck Plan, Bridge 59.1 (99) - Hell Gate River (formerly Northern Pacific), West of Phosphate, Montana, 1979
- ItemBB017002 - Burlington Northern Engineering Drawing: Deck Plan, Bridge 87 (139) - Hell Gate River (formerly Northern Pacific), West of Bearmouth, Montana, 1980
- ItemBB017020 - Burlington Northern Engineering Drawing: Deck Plan, Bridge 113 - Big Blackfoot River (formerly Northern Pacific), West of Bonner, Montana, 1986
- 1111 more...