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
- 4541 more...
- ItemBB019226 - Northern Pacific Engineering Drawing: Shop Plan - Trusses, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019227 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Stringer, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019228 - Northern Pacific Engineering Drawing: Shop Plan - Lateral Brace, Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019229 - Northern Pacific Engineering Drawing: Shop Plan - Shoes, etc., Bridge 61.1 - Stillaguamish River, East of Arlington, Washington, undated
- ItemBB019230 - Northern Pacific Engineering Drawing: General Plan/Falsework, Bridge 10 - Deer Creek, Oso, Washington, 1926
- ItemBB019231 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 10 - Deek Creek, Oso, Washington, 1952
- ItemBB019232 - Northern Pacific Engineering Drawing: Shop Plan - Iron Plate, Bridge 10 - Deek Creek, Oso, Washington, undated
- ItemBB019233 - Northern Pacific Engineering Drawing: Shop Plan - Shoe/Roller, Bridge 10 - Deek Creek, Oso, Washington, undated
- ItemBB019234 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 101, West of Cunningham, Washington, 1957
- 3178 more...