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
- 6269 more...
- ItemBB028018 - Northern Pacific Engineering Drawing: Shop Plan - Top Lateral, Bridge 81 - Cowlitz River, South of Vader, Washington, undated
- ItemBB028019 - Northern Pacific Engineering Drawing: Shop Plan - Top Lateral, Bridge 81 - Cowlitz River, South of Vader, Washington, undated
- ItemBB028020 - Northern Pacific Engineering Drawing: Shop Plan - Top Lateral, Bridge 81 - Cowlitz River, South of Vader, Washington, undated
- ItemBB028021 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Lateral, Bridge 81 - Cowlitz River, South of Vader, Washington, undated
- ItemBB028022 - Northern Pacific Engineering Drawing: Swivel Mast, Bridge 53 - Willapa River, Raymond, Washington, undated
- ItemBB028023 - Northern Pacific Engineering Drawing: Piping Diagram, Bridge 53 - Willapa River, Raymond, Washington, undated
- ItemBB028024 - Northern Pacific Engineering Drawing: Sketch of Air Receiver, Bridge 53 - Willapa River, Raymond, Washington, undated
- ItemBB028025 - Northern Pacific Engineering Drawing: General/Masonry Plan, Bridge 70 - Olequa Creek, South of Napavine, Washington, 1921
- ItemBB028026 - Northern Pacific Engineering Drawing: Masonry Plan, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- 1450 more...