Illinois State Route 42Illinois 42 was a route that closely followed the Lake Michigan shoreline that connected Winthrop Harbor and Chicago before ending at Torrence Avenue at Lincoln Highway. On the northern section, the entire length followed Sheridan Road. The northern part of the route is signed as Illinois 137 today.
Route 42 ended at US 14 in the 1950s through the early 1970s. Illinois route 42-A ran somewhat parallel and to the west following the current route of Illinois 43. By going to US 30, 42-A extended as far south as route 42 itself.
|Illinois 42:||Chicago (US 41)||< 32 miles >||Wisconsin State Line - Winthrop Harbor (Wisc. 32)|
|42-A Route:||Frankfort (US 30)||< 65 miles >||Gurnee (US 41)|
|Cities Served:||Chicago, Deerfield, Evanston, Forest View, Glencoe, Highland Park, Lake Bluff, Lake Forest, Niles, North Chicago, Waukegan, Wilmette, Winnetka, Winthrop Harbor, Zion|
|Counties Served:||Cook, Lake|
|Highway Name(s):||Sheridan Road|
|Ending at Ill. 42:||Illinois 20, Illinois 142|
|Related Link:||» Rich Carlson' Illinois Highway Page 41-60|
|Scanned maps:|| » Map of Southern section of Illinois 42 in1934