Pittsburgh, PA – PennDOT has lifted the Tier 4 restrictions on certain vehicles from traveling on roadways in Allegheny, Beaver, and Lawrence counties.

The following roadways have been lifted from the Tier 4 of the commonwealth’s weather event vehicle restriction plan:

Allegheny County

• Interstates 79, 376 (Parkways East and West), 279 (Parkway North), and 579

Beaver County

• Interstate 376 (Beaver Valley Expressway)

Lawrence County

• Interstate 79

Tier 1 of the commonwealth’s weather event vehicle restriction plan, remains in place on these roadways. Speed limits remain restricted to 45 mph on these roadways, in addition to Route 28 in Allegheny County, for all vehicles. Commercial vehicles not affected by other roadway restrictions must move to the right lane.

Due to the winter storm impacting the region, PennDOT temporarily restricted certain vehicles from using the interstates earlier today to help ensure that the interstates remained open during the most challenging conditions of the winter storm.

While PennDOT recommends not traveling during winter storms, motorists can check conditions on more than 40,000 roadway miles, including color-coded winter conditions on 2,900 miles, by visiting www.511PA.com. 511PA, which is free and available 24 hours a day, provides traffic delay warnings, weather forecasts, traffic speed information and access to more than 1,000 traffic cameras.

511PA is also available through a smartphone application for iPhone and Android devices, by calling 5-1-1, or by following regional Twitter alerts