Barren Fork Creek Bridge (Cherokee County, Oklahoma)
Built 1946
Through truss bridge over Barren Fork Creek on OK 51 near Eldon
Open to traffic

Fourteen Mile Creek Bridge (Cherokee County, Oklahoma)
Built 1949
Through truss bridge over Fourteen Mile Creek on OK 51
Open to traffic

Grand River Bridge (Cherokee County, Oklahoma)
Built 1949
Through truss bridge over Grand River on OK 51
Open to traffic

Otter Creek Bridge (Logan County, Oklahoma)
Built 1948
Pony truss bridge over Otter Creek on OK 51
Open to traffic

Stillwater Creek Bridge (Payne County, Oklahoma)
Built 1901
Through truss bridge over Stillwater Creek on OK 51 in Stillwater
Open to traffic

Turkey Creek OK 51 Bridge (Kingfisher County, Oklahoma)
Built ca. 1940
Two-span pony truss bridge over Turkey Creek on OK 51
Open to traffic

Verdigris River Bridge (Wagoner County, Oklahoma)
Built 1955; rehabilitated 1970
Through truss bridge over Verdigris River on OK 51
Open to traffic