Public meetings will be held in early 2018. A preliminary design will be completed later in the year.
A section of Interstate 65 South in Louisville will be closed this weekend for safety improvements and maintenance.
The section is between U.S. 50 in Seymour and Indiana 58 near Columbus.
The I-65 project between Greenwood and Franklin has caused delays since April 2015.
Report shows sharp increase in teen homicides; weather leads to vehicle pile-ups and the Hoosiers fall to Michigan State.
The governor says crews will widen the interstate to three lanes in each direction from Merrillville south to "at least State Road 2 near Lowell."
The bridge closed Aug. 7 after sinking several inches.
After multiple crashes, including one that killed a woman on Tuesday, INDOT will install a traffic signal on the I-65 detour route on U.S. 52.
Upset after a fatal accident Tuesday, the Boone County Sheriff took to Facebook urging INDOT to install a stoplight at the intersection of U.S. 52 and S.R. 47.
A 50-mile stretch of I-65 that runs through Lafayette will remain closed until mid-September.