I-39 back open near Portage after pavement buckle

Road Pavement Buckle Bump Sign

PORTAGE, Wis. — The right lane of I-39 South is back open outside Portage after a pavement buckle.

The Wisconsin Department of Transportation said the buckle was reported at around 8 a.m. near mile marker 95. The closure lasted about four hours.

This is one of many pavement buckles that have occurred this month. WisDOT warned of buckling at the beginning of May because of summerlike temperatures.

RELATED: WisDOT warns of buckling pavement ahead of summerlike temperatures

Wisconsin’s roads are susceptible to buckling when temperatures quickly go from cool to hot. Pavement slabs will expand and push against each other, causing bumps, dips and hazards.