The Chicago Skyway is a 7.8-mile, six-lane toll road built in 1958 by the City of Chicago to connect the Dan Ryan Expressway (I-94) to the Indiana Toll Road (I-90). Owned by the City of Chicago, the facility includes a 3.5-mile elevated mainline structure crossing the Calumet River. The Chicago Department of Streets and Sanitation was responsible for maintaining the road and collecting tolls until a private consortium took control in January 2005. The agreement between the consortium, Skyway Concession Company, LLC, and the City of Chicago was the first long-term lease of an existing toll road in the United States.