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
- 6296 more...
- ItemBB028045 - Northern Pacific Engineering Drawing: Replace Top Lateral System, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028046 - Northern Pacific Engineering Drawing: Method of Increasing Superelevation, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028047 - Northern Pacific Engineering Drawing: Proposed Super Elevation, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028048 - Northern Pacific Engineering Drawing: Summary Quantities/Area Map, Bridge 87+4250 - Buland Drive, Castle Rock, Washington, undated
- ItemBB028049 - Northern Pacific Engineering Drawing: General Plan, Bridge 87+4250 - Buland Drive, Castle Rock, Washington, undated
- ItemBB028050 - Northern Pacific Engineering Drawing: Layout, Bridge 87+4250 - Buland Drive, Castle Rock, Washington, undated
- ItemBB028051 - Northern Pacific Engineering Drawing: Pier 2, Bridge 87+4250 - Buland Drive, Castle Rock, Washington, undated
- ItemBB028052 - Northern Pacific Engineering Drawing: Pier 3, Bridge 87+4250 - Buland Drive, Castle Rock, Washington, undated
- ItemBB028053 - Northern Pacific Engineering Drawing: Framing Plan, Bridge 87+4250 - Buland Drive, Castle Rock, Washington, undated
- 1423 more...