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
- 4111 more...
- ItemBB018743 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018744 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018745 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018746 - Northern Pacific Engineering Drawing: Shop Plan - Draw Span, Bridge 38 - Snohomish River, South of Snohomish, Washington, undated
- ItemBB018747 - Northern Pacific Engineering Drawing: General Plan/Detail Masonry, Bridge 47 - Skookumchuck River, South of Bucoda, Washington, 1899
- ItemBB018748 - Northern Pacific Engineering Drawing: Falsework, Bridge 47 - Skookumchuck River, South of Bucoda, Washington, undated
- ItemBB018749 - Northern Pacific Engineering Drawing: General Plan/Detail Abutment, Bridge 47 - Skookumchuck River, South of Bucoda, Washington, 1910
- ItemBB018750 - Northern Pacific Engineering Drawing: Detail Stringer/Bracket, etc., Bridge 47 - Skookumchuck River, South of Bucoda, Washington, undated
- ItemBB018751 - Northern Pacific Engineering Drawing: Detail Shoes/Bolster, Bridge 47 - Skookumchuck River, South of Bucoda, Washington, undated
- 3608 more...