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    Vehicle, Speed Restrictions Placed on I-79, I-376

    January 25, 2023

    The Pennsylvania Department of Transportation (PennDOT) has implemented a Tier 1 vehicle and a 45-mph speed restriction on portions of Interstate 79 and Interstate 376 in Mercer County.

    The restrictions, including commercial vehicles in the right lane only, are in place on the following roadways:

    • I-79 from Exit 113 (Route 208/Route 258, Grove City) in Mercer County to Exit 105 (Route 108, Slippery Rock) in Butler County; and
    • I-376 from the beginning point in Mercer County to Exit 48 (Route 151, Hopewell) in Beaver County.

    A Tier 1 restriction remains in place on Interstate 80 from the Interstate 79 interchange in Mercer County to the Interstate 180 westbound interchange in Northumberland County.

    Under Tier 1 restrictions, the following vehicles are not permitted on affected roadways: 

    • Tractors without trailers; 
    • Tractors towing unloaded or lightly loaded enclosed trailers, open trailers or tank trailers; 
    • Tractors towing unloaded or lightly loaded tandem trailers; 
    • Enclosed unloaded or lightly loaded cargo delivery trucks/box trucks that meet the definition of a CMV; 
    • Passenger vehicles (cars, SUV's, pickup trucks, etc.) towing trailers; 
    • Recreational vehicles/motorhomes; 
    • School buses, commercial buses and motor coaches; and 
    • motorcycles. 

    Additional restrictions are in place in other parts of the state.

    Drivers are reminded to continue to use caution while traveling during winter weather conditions and to avoid unnecessary travel whenever possible.

    Although PennDOT crews are treating roadways, the department's primary goal is to keep roads passable, not completely free of ice and snow. PennDOT will continue to treat roadways throughout the storm until precipitation stops and roads are clear.

    Motorists can check conditions on major roadways 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 accessible on the 511PA website.

    Follow local PennDOT news on Twitter and like the department on Facebook.

    MEDIA CONTACT: Jill Harry, 814-678-5035

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