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    Route 4165 Glenfield Viaduct Inspection Activities Friday in Glenfield Borough

    August 19, 2026

    Pittsburgh, PA – The Pennsylvania Department of Transportation (PennDOT) is announcing inspection activities on the Glenfield Viaduct (Route 4165) in Glenfield Borough, Allegheny County will occur Friday, August 21 weather permitting.

    Single-lane alternating traffic restrictions controlled by flaggers will occur on the Glenfield Viaduct which carries Glenfield Street over Route 65 and the Norfolk Southern railroad from 9:00 AM to 3:00 PM Friday for bridge inspection activities.

    Crews from Mackin Engineering and the Sofis Rigging Company will conduct the inspection work.

    Please use caution if traveling on this road. Work zone 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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