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    Southbound Interstate 79 Structure Repair Schedule Change in Collier Township

    Allegheny County-owned Thoms Run Road around-the-clock closure to begin Thursday night

    February 03, 2026

    Pittsburgh, PA – The Pennsylvania Department of Transportation (PennDOT) is announcing a schedule change of the southbound I-79 structure repair work in Collier Township, Allegheny County.

    Due to a bridge strike on the structure carrying southbound I-79 over Thoms Run Road located approximately one-half mile north of the Heidelberg/Collier (Exit 55) off-ramp, a right-hand lane and shoulder closure have been in place around-the-clock since December 23.

    Thoms Run Road will close to traffic between Washington Pike (Route 50) and Neville Park Boulevard to accommodate steel repairs and heat straightening work according to the following schedule:

    Tonight, Tuesday February 3 and Wednesday night, February 4

    • Overnights from 8:00 PM to 5:00 AM for preparatory work

    Thursday through Tuesday, February 5-10

    • Around-the-clock from 10:00 PM Thursday night through 5:00 AM Tuesday morning

    All traffic will be detoured via Washington Pike (Route 50) and Prestley Road (Route 3031).

    Additional details will be provided as this emergency repair work progresses.

    Please stay alert and drive cautiously – safety is everyone’s responsibility.

    Drivers 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 1,200 traffic cameras. 511PA is also available through a smartphone application for iPhone and Android devices, by calling 5-1-1, or by following regional X alerts.

    Find PennDOT’s planned and active construction projects at www.pa.gov/DOTprojects. Subscribe to PennDOT news and find transportation results in Allegheny, Beaver, and Lawrence counties at www.pa.gov/DOTdistrict11.

    Find PennDOT news on X, Facebook, Instagram and LinkedIn.

    MEDIA CONTACT: Nicole Haney, nhaney@pa.gov or 412-429-5011

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