South Dakota Interstate 229
1970 specification highway marker.
Eastbound Benson Road approaching Junction Interstate 229 in Sioux Falls (near Exit 9).
Photo by Alex Nitzman, 4/20/2007.
1970 specification highway marker.
Eastbound Benson Road approaching Junction Interstate 229 in Sioux Falls (near Exit 9).
Photo by Alex Nitzman, 4/20/2007.