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
- 6291 more...
- ItemBB028040 - Northern Pacific Engineering Drawing: Shop Plan - Bolster, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028041 - Northern Pacific Engineering Drawing: Shop Plan - Bolster, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028042 - Northern Pacific Engineering Drawing: Shop Plan - Roller Bed, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028043 - Northern Pacific Engineering Drawing: Shop Plan - Sheet Lead, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- ItemBB028044 - Northern Pacific Engineering Drawing: Shop Plan - Erection Diagram, Bridge 70 - Olequa Creek, South of Napavine, Washington, undated
- 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
- 1428 more...