the Chicago Skyway becomes the Indiana Toll Road. History In 1928, US 12 followed its current route south from Wisconsin into Richmond. It then continued straight on what is now IL 31 to Crystal Lake, and then ran along what is now US 14 into Chicago. This route began to be depicted on Chicago maps in 1932 along the Northwest Highway, Foster Avenue, Lake Shore Drive, South Parkway (now most likely the 57th Street / Cornell Avenue combination), Stony Island Avenue and 95th Street. From 1928 to 1929, the section between the Wisconsin state line to Crystal Lake was being constructed; this segment was designated Temporary U.S. Route 12 at the time. In 1938, US 12 was moved north off the US 14 routing to the current routing to Des Plaines. In addition, US 12 was moved to what is now Mannheim Road, La Grange Road and 95th Street. The former US 12 became City US. Route 12. In 1939, US 12 was moved to a bypass around Lake Zurich and widened to four lanes. Old Rand Road was the name given to the former US 12 alignment. The original 1939 E.J.& E. RR. 4 span concrete bridge over the US 12 bypass remains in Lake Zurich with telegraph poles visible on the bridge. The original pot hole full 1939 asphalt pavement has since been resurfaced including replacing with concrete lanes and widening from through lanes to six through lanes between IL 22 and Ela Road in a project in 2007. In the early 1950s, US 12 was moved to a bypass around Wauconda and widened to four lanes extending to IL 120 in Volo. Old Rand Road was the name given to the former US 12 alignment. The original pothole-full 1950s asphalt pavement with double yellow lines visible in the west bound lanes between Old McHenry Road and Old Rand Road has since been resurfaced in 2013. Mature trees in the interchange grassy areas and 1950s style motels remain in Wauconda. In the late 1950s, US 12 was widened to four lanes extending to Fox Lake. Mature trees lining the frontage roads and 1950s style motels and diners remain in Fox Lake. US 12 in Illinois has not been widened further northwest since then. There were no further changes to the US 12 routing until 1960, when City US 12 became Business U.S. Route 12. In 1963, US 12