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
- 2297 more...
- ItemBB016747 - Northern Pacific Engineering Drawing: Renew Top Lateral Plate, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016748 - Northern Pacific Engineering Drawing: Renew Top Lateral Plate, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016749 - Northern Pacific Engineering Drawing: Detail Stringer/Cross Frame, etc., Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016750 - Northern Pacific Engineering Drawing: Stringer/Gusset Repair, Bridge 62.1 - Spokane River, West of Trentwood, Washington, undated
- ItemBB016751 - Northern Pacific Engineering Drawing: Masonry as Constructed, Bridge 14 - Chambers Creek, Titlow, Washington, undated
- ItemBB016752 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB016753 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB016754 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB016755 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- 5422 more...