Old Oregon Trail

La Prele Creek Bridge (Converse County, Wyoming)
Built 1932; rehabilitated 1970
Concrete tee beam bridge over La Prele Creek on CR 36 (Sunflower Trail)
Open to traffic

Perry Bridge (Union County, Oregon)
Lost Truss bridge over Grande Ronde river on Former US 30
Replaced by a new bridge

Upper Perry Arch Bridge (Union County, Oregon)
Built 1924, Rehabilitated 2008
Arch bridge over Grande Ronde River and U.P.R.R. on Old U.S. 30
Open to traffic

US30 Hilgard Bridge (Union County, Oregon)
Lost Warren deck truss bridge over ORW&N tracks and Grande Ronde river on Former US 30
Removed but not replaced