View of Casper Mountain from I-25 (WYDOT)

CASPER, Wyo. — A jackknifed truck has closed Casper Mountain Road at the 8.4 milepost on Thursday.

As of 1:30 p.m., the Wyoming Department of Transportation says the road is closed in both directions.

“Jackknifed semi, all lanes blocked near Casper at milepost 8.4. Be prepared to stop; expect delays,” WYDOT said.