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
- 5060 more...
- ItemBB019962 - Northern Pacific Engineering Drawing: Shop Plan - Under Crossing, Bridge 87 - Highway 20, Sedro - Woolley, Washington, undated
- ItemBB019963 - Northern Pacific Engineering Drawing: Shop Plan - Under Crossing, Bridge 87 - Highway 20, Sedro - Woolley, Washington, undated
- ItemBB019964 - Northern Pacific Engineering Drawing: Shop Plan - Under Crossing, Bridge 87 - Highway 20, Sedro - Woolley, Washington, undated
- ItemBB019965 - Northern Pacific Engineering Drawing: Shop Plan - Under Crossing, Bridge 87 - Highway 20, Sedro - Woolley, Washington, undated
- ItemBB019966 - Northern Pacific Engineering Drawing: 70 Foot Deck Girder, Bridge 78 - Olequa Creek, South of Vader, Washington, undated
- ItemBB019967 - Northern Pacific Engineering Drawing: 70 Foot and 80 Foot Girders, Bridge 78 - Olequa Creek, South of Vader, Washington, undated
- ItemBB019968 - Northern Pacific Engineering Drawing: 1 - 70 Foot and 2 - 80 Foot Deck Plate Girder (DPG), Bridge 78 - Olequa Creek, South of Vader, Washington, undated
- ItemBB019969 - Northern Pacific Engineering Drawing: Layout Bearings, Bridge 78 - Olequa Creek, South of Vader, Washington, undated
- ItemBB019970 - Northern Pacific Engineering Drawing: Piers 2 and 3, Bridge 78 - Olequa Creek, South of Vader, Washington, undated
- 2659 more...