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
- 1348 more...
- ItemBB015677 - Northern Pacific Engineering Drawing: Bill of Material, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015679 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015680 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 16.1 - Chehalis River, Near Dryad, Washington, 1937
- ItemBB015681 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, etc., Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015682 - Northern Pacific Engineering Drawing: Shop Plan - Stringer/Brace, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015683 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Brace, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015684 - Northern Pacific Engineering Drawing: Shop Plan - Strut/Chord, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015685 - Northern Pacific Engineering Drawing: Shop Plan - Chord/Posts, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- ItemBB015686 - Northern Pacific Engineering Drawing: Shop Plan - Post/Strut, Bridge 16.1 - Chehalis River, Near Dryad, Washington, undated
- 6371 more...