Railroad Archives Online
- FondD0027 - Timothy Miller Collection
- Sorozat004 - Northern Pacific Railroad Company
- Alsorozat009 - Engineering Records
- 008 - Physical plant drawing
- 001 - Bridges
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- IratdarabBB015344 - Northern Pacific Engineering Drawing: Piers 2/3/4/5, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
- IratdarabBB015345 - Northern Pacific Engineering Drawing: Superstructure/New Bearings, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
- IratdarabBB015346 - Northern Pacific Engineering Drawing: Deck Detail, Bridge 62 - Swamp Creek, West of Tuscor, Montana, 1956
- IratdarabBB015347 - Northern Pacific Engineering Drawing: Deck Detail/Beam/Material, Bridge 62 - Swamp Creek, West of Tuscor, Montana, 1956
- IratdarabBB015349 - Northern Pacific Engineering Drawing: Shop Plan - Bearing Plates, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
- IratdarabBB015350 - Northern Pacific Engineering Drawing: Shop Plan - Miscellaneous/Bridge, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
- IratdarabBB015351 - Northern Pacific Engineering Drawing: General Plan, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
- IratdarabBB015352 - Northern Pacific Engineering Drawing: 40 Foot Tower Span, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
- IratdarabBB015353 - Northern Pacific Engineering Drawing: 50 Foot Girder Span, Bridge 62 - Swamp Creek, West of Tuscor, Montana, undated
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