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 3003 - Maintenance Facilities
- 4 more...
- ItemStruc000008 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000009 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000010 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000011 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000012 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1978
- ItemStruc000013 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000014 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000015 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- ItemStruc000020 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1978
- 1298 more...