The route did not change between 1931 and 2002, with only work being maintenance. Then in 2003, the state of Indiana rerouted US 12 onto SR 912 from Columbus Drive to US 20. The route was changed to make room for the Gary/Chicago International Airport runway expansion project. Major intersections See also References External links Indiana 12 Transportation in Gary, Indiana Lake Michigan Circle Tour Northwest Indiana Transportation in Lake County, Indiana Transportation in Porter County, Indiana Transportation in LaPorte County, Indiana