The cement on eastbound Highway 16 near Hartland buckled Thrusday afternon around 4 p.m., causing backups of around one-quarter to one-half of mile at times.
The cement buckled in both lanes about one-quarter of a mile east of Jungbluth Drive. Traffic was down to one-lane of traffic on the north shoulder of the road.
County employees were trying to patch things up from 4:30 p.m. The excessive heat made the concrete buckle.