Westbound lanes on Interstate 80 remain closed Thursday after a rollover crash involving a semitrailer carrying hazardous materials near southwest suburban New Lenox.
Officers responded to the crash about 8:30 a.m., in a construction zone in the westbound lanes of I-80 near mile marker 138, according to Illinois State police.
According to authorities, the driver of the tractor said he was trying to change lanes from the left to the right lane when the trailer began to "swap uncontrollably." The driver lost control of the vehicle, striking the guardrail on the right side of the roadway. The trailer ultimately overturned, according to authorities.
The tractor was carrying phosphoric acid that was leaking from the trailer, police said. On-scene officials estimate that approximately 100 gallons of the substance leaked from the vehicle.
Due to the spill, all I-80 westbound lanes were closed and remain closed as of 3 p.m. Thursday.
Hazmat clean up crews were called about 10:30 a.m. and the the Illinois Department of Transportation are aiding with lane closures.
Traffic is being redirected onto I-355 northbound from I-80 westbound, police said. The I-355 southbound to I-80 westbound ramp was also closed.
