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
- 4299 more...
- ItemBB018953 - Northern Pacific Engineering Drawing: Detail of Abutments, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018955 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, 1940
- ItemBB018956 - Northern Pacific Engineering Drawing: Tie Framing Plan, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018957 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal/Anchor, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018958 - Northern Pacific Engineering Drawing: Shop Plan - Shoes, etc., Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018959 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018960 - Northern Pacific Engineering Drawing: Shop Plan - Girder/Beam, etc., Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018961 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame/Lateral, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- ItemBB018962 - Northern Pacific Engineering Drawing: Shop Plan - Lateral Brace, Bridge 93.3 - Ostrander Creek, South of Castle Rock, Washington, undated
- 3420 more...