Caveman Bridge (Josephine County, Oregon)Built 1927
Rainbow arch bridge over Rogue River on Southbound US 199 in Grants Pass
Open to traffic
Middle Fork Smith River Bridge (Del Norte County, California)Built 1925; rehabilitated 1972
Concrete arch bridge over Middle Fork Smith River on US 199
Open to traffic
Myrtle Creek Bridge (Del Norte County, California)Built 1984
Concrete arch bridge over Myrtle Creek on US 199
Open to traffic
Oregon Mountain Tunnel (Del Norte County, California)
Built 1963
Tunnel under Oregon Mountain on US 199
Open to traffic
Built 1963
Tunnel under Oregon Mountain on US 199
Open to traffic