At least 12 serious accidents occurred last year in constructions zones on I-65 between the south side of Indianapolis and Columbus.

The intersection is along the detour established by the Indiana Department of Transportation after a 37-mile stretch of Interstate 65 northbound - from Lebanon to Lafayette - had to be closed because of a sinking bridge. The increased traffic volume has caused backups and raised concerns about safety.

Upset after a fatal accident involving a Lebanon woman Tuesday morning, Boone County Sheriff Mike Nielsen took to Facebook to vent and urge the Indiana Department of Transportation to install a stoplight at the intersection of U.S. 52 and State Road 47 -- part of the official detour northbound for Interstate 65, closed by bridge problems in Lafayette.

The Indiana Department of Transportation says construction contractors plan to close ramps at the Interstate 65 Exit 124 interchange at 71st Street for pavement repairs Aug. 18-20.

Indiana Department of Transportation officials believe they have a fix for the closed Interstate 65 bridge in Tippecanoe County. But, it'll still be several more weeks until that's in place.

INDOT said it plans to close the northbound I-65 and eastbound I-70 ramp to northbound I-65 at the north split tonight to install safety improvements.

The Indiana Department of Transportation expects the northbound Interstate 65 to westbound Interstate 70 ramp to open before the end of July.