Illinois Interstate 80
![Illinois Interstate 80 sign.](img/IL/IL19790801i1.jpg)
1970 specification highway marker.
Kedzie Avenue at Junction U.S. 6 (159th Street).
Photo by Bill Burmaster, 9/13/2006.
1970 specification highway marker.
Kedzie Avenue at Junction U.S. 6 (159th Street).
Photo by Bill Burmaster, 9/13/2006.