Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 1756 more...
- ItemBB024253 - Great Northern Engineering Drawing: General Plan, Bridge 452, West of Monroe, Washington, 1949
- ItemBB024254 - Great Northern Engineering Drawing: Substructure Details, Bridge 452, West of Monroe, Washington, 1949
- ItemBB024255 - Great Northern Engineering Drawing: Deck Plan, Bridge 452, West of Monroe, Washington, 1949
- ItemBB024256 - Great Northern Engineering Drawing: Shop Plan/Square Girder Span, Bridge 452, West of Monroe, Washington, 1949
- ItemBB024257 - Great Northern Engineering Drawing: Shop Plan/Square Curb Span, Bridge 452, West of Monroe, Washington, 1949
- ItemBB024258 - Great Northern Engineering Drawing: General Plan, Bridge 452, West of Monroe, Washington, 1950
- ItemBB024259 - Great Northern Engineering Drawing: General Plan, Bridge 452, West of Monroe, Washington, 1952
- ItemBB024260 - Great Northern Engineering Drawing: Substructure Details, Bridge 452, West of Monroe, Washington, 1952
- ItemBB024261 - Great Northern Engineering Drawing: Deck Plan, Bridge 452, West of Monroe, Washington, 1966
- 2236 more...