The South Dakota Department of Transportation says the southbound on and off ramps for the Interstate 29/Sisseton exit (Exit 232) will be closed to traffic on Friday, Sept. 7, for about 14 days.
Motorists will need to use an alternate route through Wednesday, Sept. 17, while the contractor reconstructs the southbound lanes through the exit.
Drivers are reminded to slow down through construction zones and be aware of workers and equipment adjacent to the driving lane.
Michels Corp. is the prime contractor on the $14.6 million project.
The project includes grading, concrete paving, epoxy bridge chip seals and roadway lighting and has a completion date of Oct. 26, 2018.