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    Southbound Interstate 79 Structure Painting Next Week in Collier Township

    Allegheny County-owned Thoms Run Road overnight closures to occur.

    July 17, 2026

    Pittsburgh, PA – The Pennsylvania Department of Transportation (PennDOT) is announcing painting activities on the southbound I-79 structure over Thoms Run Road in Collier Township, Allegheny County will occur Tuesday through Thursday nights, July 21-23 weather permitting.

    To accommodate painting activities on the structure carrying southbound I-79 over Thoms Run Road, Thoms Run Road will close to traffic from 7:00 PM to 5:00 AM each night. Traffic will be detoured.

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

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

    Travelers can check conditions on major roads 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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