Adkisson Bridge Concrete arch bridge over 15 Mile Creek on Boyd Loop Road Open to traffic Built 1925
Deschutes River Bridge Deck truss bridge over Deschutes River on US 197 in Maupin Open to traffic Built 1929
Dry Canyon Creek Bridge Concrete arch bridge over Dry Canyon Creek on Historical Columbia River Highway Open to traffic Built 1921
John Day River Bridge Steel through arch bridge over John Day River on OR 218 Open to traffic Built 1975
Mill Creek Bridge Deck truss bridge over Mill Creek on US 26 Open to traffic Built 1948
Mill Creek Bridge Stringer bridge over Mill Creek on W 6th Street in City of the Dalles Open to traffic Built 1920; rehabilitated 2001
Mosier Creek Bridge Concrete arch bridge over Mosier Creek on HWY 100 in Mosier Open to traffic Built 1920
Mosier Tunnel Tunnel under Mosier Tunnel on Historical Columbia River Highway Trail Open to pedestrians Built 1920, Closed due to rock fall problems 1953, Reopened to public in 2000
Sevenmile Hill Road Bridge Wooden bridge over Sevenmile Creek on Sevenmile Hill Road Open to traffic Built 1940
The Dalles Bridge Through truss bridge over Columbia River on US 197 in City of The Dalles Open to traffic Built 1954