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 3007 - Track
- 82 more...
- ItemBB033318 - Burlington Northern Engineering Drawing: 12 Foot X 12 Foot Box Culvert, Culverts, undated
- ItemBB033319 - Burlington Northern Engineering Drawing: Double 4 Foot X 6 Foot Box Culvert, Culverts, undated
- ItemBB033320 - Burlington Northern Engineering Drawing: Culvert Foundation and Reinforcing, Culverts, undated
- ItemBB033321 - Burlington Northern Engineering Drawing: 24 Foot Reinforcement - Arch, Culverts, 1913
- ItemBB033322 - Burlington Northern Engineering Drawing: 24 Foot Reinforcement Arch, Culverts, 1913
- ItemBB033323 - Burlington Northern Engineering Drawing: Double 4 Foot X 6 Foot Box Culvert, Culverts, undated
- ItemBB033324 - Burlington Northern Engineering Drawing: 12 Foot X 10 Foot Box Culvert, Culverts, undated
- ItemBB033325 - Burlington Northern Engineering Drawing: 12 Foot X 10 Foot Box Culvert, Culverts, undated
- ItemBB033326 - Burlington Northern Engineering Drawing: 16 Foot X 15 Foot Box Culvert, Culverts, undated
- 70 more...