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
- 3614 more...
- ItemBB018201 - Northern Pacific Engineering Drawing: Ballast Deck Timber Trestle, Bridge 93 - Underpass, South of Castle Rock, Washington, 1957
- ItemBB018202 - Northern Pacific Engineering Drawing: Detail of Ballast Deck, Bridge 93.1 - Underpass, South of Castle Rock, Washington, 1957
- ItemBB018203 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 17 - Van Sycle Creek, South of Zangar Junction, Washington, 1958
- ItemBB018204 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 15.1 - Van Sycle Creek, South of Zangar Junction, Washington, 1958
- ItemBB018205 - Northern Pacific Engineering Drawing: 3 Span Pile Bridge, Bridge 68 - Underpass, South of Napavine, Washington, 1953
- ItemBB018206 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 11.1 - Van Sycle Creek, South of Zangar Junction, Washington, 1958
- ItemBB018207 - Northern Pacific Engineering Drawing: Repair Wing Wall, Bridge 11.1 - Van Sycle Creek, South of Zangar Junction, Washington, undated
- ItemBB018208 - Northern Pacific Engineering Drawing: Rebuild Pier, Bridge 11.1 - Van Sycle Creek, South of Zangar Junction, Washington, undated
- ItemBB018210 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 14.1 - Van Sycle Creek, South of Zangar Junction, Washington, 1958
- 4105 more...