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
- 5029 more...
- ItemBB019929 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019930 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, 1940
- ItemBB019931 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019932 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019933 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019934 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019935 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019936 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- ItemBB019937 - Northern Pacific Engineering Drawing: Post Falls Underpass, Bridge 4 - Highway, South of Grand Junction, Idaho, undated
- 2690 more...