High Quality Content by WIKIPEDIA articles! In the U.S. state of Indiana, U.S. Route 41 (US 41) is a north–south highway that is parallel to the Illinois state line. It enters the state south of Evansville as a 4-Lane divided highway passing around Vincennes and traveling North to Terre Haute. In Terre Haute, it is known as 3rd Street. North of Terre Haute, it hooks east and becomes a 2-lane surface road. Those wanting to stay on a 4-Lane divided highway can use SR 63 to the west. It passes through Rockville, Veedersburg, and Attica before returning to a 4-Lane divided highway when SR 63 terminates in Warren County. It remains a 4-lane divided highway until Lake County where it becomes a main road known as Indianapolis Blvd. It overlaps US 12 and US 20 in Hammond and exits Indiana into the South Side of Chicago.