Road construction work on the north- and southbound ramps at Interstate 35 and Cerro Gordo County Road B-20 (exit 197) near Clear Lake will require closing the ramps intermittently from 8 a.m. to 4 p.m. Thursday, Aug. 23, weather permitting, according to the Iowa Department of Transportation’s Mason City construction office.

The north- and southbound ramps will not be closed at the same time.

During the closure for northbound traffic, drivers will use the Iowa 9 interchange (exit 203), travel south on I-35, and exit at Cerro Gordo County Road B-20 (exit 197). Southbound traffic will travel to Iowa 122 (exit 194), then travel north on I-35 to Cerro Gordo County Road B-20 (exit 197).