L. M. Mackey

Caney River Bridge (Washington County, Oklahoma)
Built 1937
Through truss bridge over Caney River on OK 123 in Bartlesville
Open to traffic

Washita River Bridge (Roger Mills County, Oklahoma)
Built 1932
Pony truss bridge over Washita River on OK 33
Relpaced in 2008

Washita River Bridge (Roger Mills County, Oklahoma)
Built 1932
Pony truss bridge over Washita River on OK 33
Open to traffic