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
- 4426 more...
- ItemBB019106 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019107 - Northern Pacific Engineering Drawing: Shop Plan - Through Truss Spacing, Bridge 39 - Umatilla River, Union Pacific Connection, Washington, undated
- ItemBB019108 - Northern Pacific Engineering Drawing: General Plan/Detail Masonry, Bridge 78 - Olequa Creek, South of Vader, Washington, 1899
- ItemBB019109 - Northern Pacific Engineering Drawing: Detail of Timber Pier, Bridge 78 - Olequa Creek, South of Vader, Washington, undated
- ItemBB019110 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 78 - Olequa Creek, South of Vader, Washington, 1960
- ItemBB019111 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 78 - Olequa Creek, South of Vader, Washington, 1960
- ItemBB019112 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 78 - Olequa Creek, South of Vader, Washington, 1960
- ItemBB019113 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 78 - Olequa Creek, South of Vader, Washington, 1939
- ItemBB019114 - Northern Pacific Engineering Drawing: General Plan, Bridge 51 - Hannaford Creek, South of Wabash, Washington, 1897
- 3293 more...