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    Project to Repair Interstate 79 and Interstate 80 in Mercer County Underway

    Drivers Should be Alert for Lane Restrictions, Traffic Pattern Shifts

    April 14, 2025

    A $3.2 million project to repair portions of Interstate 79 and Interstate 80 in Mercer County restarted today.

    The project includes 26 miles of Interstate 79 in both northbound and southbound directions in Mercer County from the Crawford County line to the Lawrence County line, and 9 miles of Interstate 80 in both eastbound and westbound directions in Mercer County from the Venango County line to the Butler County line.

    Work on the interstates, which started in 2024, will be done as needed and will include milling and paving, concrete patching, and new pavement markings. Minor repairs will also be done on 10 bridges.

    Construction restarted on April 14, 2025, weather permitting, and to be completed in August 2025.

    Lane restrictions will be needed to complete the repairs. Drivers should be alert for traffic pattern shifts and anticipate travel delays during active work hours.

    The contractor is Glenn O. Hawbaker of State College, PA. The contract cost is $3,198,198, which is to be paid entirely with federal funds.

    This year PennDOT's Northwest Region expects to do work on more than 100 projects. To see a full listing of all the anticipated work, check out the 2025 Construction Book located under the Resources tab online at www.penndot.pa.gov/District1.

    PennDOT urges motorists to slow down when driving in work zones, and also to be alert to changing conditions, avoid distractions and to pay attention to signs and flaggers. Drive responsibly in work zones for your safety and the safety of the workers.

    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.

    Subscribe to PennDOT news and traffic alerts in Crawford, Erie, Forest, Mercer, Venango, and Warren counties at www.penndot.pa.gov/District1.

    Information about infrastructure in District 1, including completed work and significant projects, is available at www.penndot.pa.gov/D1Results. Find PennDOT's planned and active construction projects at www.projects.penndot.gov.

    Find PennDOT news for the northwest region on X or Facebook.  

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    MEDIA CONTACT: Jill Harry, 814-678-5035 or jharry@pa.gov