The South Dakota Department of Transportation announced that the southbound on- and off-ramps at Cliff Avenue (exit 4) on Interstate 229 in Sioux Falls will reopen to traffic on Friday, December 5, 2025. The southbound on-ramp will be accessible only from southbound Cliff Avenue. The off-ramp will provide access to both directions of Cliff Avenue. These ramps were rebuilt as part of an interchange project at this location…