The Crosstown Expressway, suggested as Interstate 494 (I-494), was a proposed highway route in Chicago, Illinois. It was originally planned through the 1960s and 1970s. Route description The highway was to begin from a connection with the Kennedy Expressway and Edens Expressway (I-90 and I-94) near Montrose Avenue on the city's Northwest Side. It was to follow an alignment parallel and adjacent to the Belt Railway of Chicago, approximately one-half mile (0.8 km) east of Cicero Avenue, and extend southerly over railroad right-of-way through the West Side of Chicago and across the Sanitary and Ship Canal, to a connection with the Stevenson Expressway (I-55). South of this confluence, the route would continue south in a reverse-direction, split arrangement with the northbound highway lanes depressed along Cicero Avenue and the southbound lanes depressed along the Belt Railway of Chicago tracks. Continuing south past the proposed traffic interchange at Chicago Midway International Airport, the expressway alignment was to turn southeasterly at 67th Street and continue over Belt Railway right-of-way to Lawndale Avenue then turn easterly towards the Dan Ryan Expressway along Norfolk Southern Railway right-of-way (now Metra-South West Service) and 75th Street to an interchange with the Dan Ryan Expressway (I-94) north of 91st Street. Extra lanes were planned to extend north from the proposed Dan Ryan/Crosstown interchange to connect with the Chicago Skyway (I-90) near 66th and State Streets. The I-494 number was originally to be used for a freeway upgrade of Lake Shore Drive that was also cancelled; when the Crosstown Expressway inherited that number, the LSD proposal was then renumbered to I-694. History The origins of the Crosstown Expressway can be found in Burnham and Bennett's 1909 Plan of Chicago, which proposed a grand circumferential road to divert traffic around central Chicago. The route was incorporated in the Chicago Plan Commission's plans for post-war highway construction. The Federal-Aid Highway Act of 1956 spurred extensive construction around Chicago, but by 1960, the Crosstown Expressway was the only route included in the region's postwar transportation plans yet to break ground. The State of Illinois, Cook County, and City of Chicago formed the Crosstown Expressway Task Force in 1963. According to then Chicago Commissioner for Public Works, Milton Pikarsky, the task force aimed "to demonstrate the feasibility of the proposed expressway... in sufficient detail so that the need for an expressway could not be challenged". Public resentment over the experience of highway