Various Restrictions Begin Monday Night in Preparation for I-376 Commercial Street Bridge Closure in Allegheny County

Pittsburgh, PA – The Pennsylvania Department of Transportation (PennDOT) is announcing restrictions on various roads between Churchill Borough and the City of Pittsburgh, Allegheny County, will begin Monday night, July 6 weather permitting.

Starting Monday night, a single lane closure on I-376 in each direction will occur between the Edgewood/Swissvale (Exit 77) and Churchill (Exit 79B) interchanges from 9:00 PM to 5:00 AM each night through Thursday night. Crews will conduct preparatory work for the anticipated I-376 Commercial Street Bridge closure on Friday, July 10.

Once the bridge closes, I-376 will be reduced to a single lane of traffic in each direction between the Edgewood/Swissvale (Exit 77) and Wilkinsburg (Exit 78B) interchanges until the bridge reopens in early August.

Additionally, beginning at approximately 9:00 PM Monday night, long-term lane closures will be implemented continuously around-the-clock in preparation for the bridge closure and detour setup in the following locations:

·       Route 30 (Ardmore Boulevard) in each direction between Morrow Road to Brinton Road

·       The Boulevard of the Allies in each direction between McDevitt Place and the Boulevard of the Allies slip ramp from Fifth Avenue.

Once the bridge closes, these lane closures will remain in place until the bridge reopens in early August. Please note: The ramp from the Boulevard of the Allies to westbound I-376 will remain open to traffic during the bridge closure.

The Commercial Street Bridge replacement project will utilize Accelerated Bridge Construction Techniques to laterally slide the new bridge onto the existing alignment of I-376 (Parkway East), which would be one of the largest lateral slide projects performed in Pennsylvania. The $95 million project located between the Edgewood/Swissvale (Exit 77) interchange and Squirrel Hill Tunnel in Edgewood and Swissvale boroughs, and the City of Pittsburgh began in June of 2024 with the reconstruction of the westbound I-376 off-ramp to Forest Hills/Wilkinsburg (Exit 78B). From July 10 through August 3, 2026, travelers can expect a 25-day full closure and detour of I-376. The overall project is anticipated to conclude in the summer of 2027.

To help keep travelers informed as work progresses, PennDOT has created an email distribution list for Parkway East traffic advisories and construction updates. Enroll by clicking on the Parkway East online sign-up form link and entering your email address.

Updates can also be found on the Commercial Street Bridge webpage, by following PennDOT’s regional X page @511PAPittsburgh or joining the Greater Pittsburgh Area PennDOT Facebook group.

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: Yasmeen Manyisha, ymanyisha@pa.gov or 412-429-5044 

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