Two separate crashes, including one that killed one person, closed parts of Interstate 79 and Interstate 70 in Washington County on Thursday.

A deadly crash closed Interstate 79 between Exit 33 and Exit 34 for hours on Thanksgiving before it reopened around 10:15 p.m., authorities said. 

Pennsylvania State Police Trooper Rocco Gagliardi said one person was killed in the crash. The Washington County Coroner’s Office said the victim, who has not been identified, was in the front passenger seat of a vehicle when the driver lost control due to icy conditions and crashed. The driver and another passenger were taken to local hospitals. Their conditions were not released. 

Authorities did not say on Thursday night if there were any other injuries or how many vehicles were involved in the Interstate 79 crash. 

Interstate 70 between Exit 11 and Exit 17 was also closed for a crash on Thursday, but the road reopened around 8:45 p.m. It was not immediately known if there were any injuries or how many vehicles were involved. 

State police are investigating both crashes. 

Icy roads in Pittsburgh area

In a post on Facebook on Thursday, the Washington County Department of Public Safety said drivers needed to be aware of icy roads.

“Please use extreme caution on any elevated roadways,” the post said.

National Weather Service Pittsburgh said a light coating of snow fell on warm roads across the area, and wet spots on untreated roads turned into ice after road temperatures dipped below freezing. 

“Slick spots remains possible through the overnight. Please exercise caution in evening travel, particularly after the holiday dinner,” NWS Pittsburgh advised.

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