Both westbound lanes on Interstate 44 at mile marker 172 are open after a tractor-trailer crash in Phelps County on Monday.

Both westbound lanes were closed west of Rolla on I-44 at mile marker 172 due to a tractor trailer crash Monday afternoon, the Missouri Department of Transportation says. 

The tractor-trailer traveled off the right side of the interstate striking a mile marker sign and then a rock bluff before overturning, the crash report says. The driver was transported to Phelps Health with unknown injuries, the Doolittle Rural Fire Protection said on Monday after they were dispatched to the crash scene in Phelps County.