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    Grand Avenue On-ramp to Northbound Interstate 79 Closure Begins Monday in Allegheny County

    November 04, 2025

    Pittsburgh, PA – The Pennsylvania Department of Transportation (PennDOT) is announcing the closure of the ramp from Grand Avenue to northbound I-79 in Neville Township, Allegheny County will begin Monday, November 10 weather permitting.

    The ramp that carries traffic from Grand Avenue to northbound I-79 will close to traffic from 5:00 AM Monday continuously through 6:00 AM Sunday, November 23 as crews conduct deck repair work. All ramp traffic will be detoured.

    Posted Detour

    • From Grand Avenue head westbound
    • Continue across the Coraopolis Bridge to Route 51
    • Turn right onto northbound Route 51 (4th Avenue)
    • Turn left onto Montour Street
    • Turn left onto southbound Route 51 (5th Avenue)
    • Continue on southbound Route 51 (5th Avenue becomes State Avenue)
    • Turn right onto the ramp to northbound I-79 toward Erie
    • End Detour

    Alternate Detour

    • From eastbound Grand Avenue, bear right onto Neville Road
    • Cross the Ohio River via the Fleming Park Bridge
    • Turn right onto northbound Route 51 (Robinson Boulevard) toward Coraopolis
    • Continue northbound on Route 51 (Robinson Boulevard becomes Coraopolis Road)
    • Turn left onto the ramp to northbound I-79 toward Erie
    • End Detour

    This work is part of the $43.9 million I-79 “S-Bend” Project that included full-depth pavement reconstruction, and bridge preservation work. Additionally, there was milling and paving of three ramps at the Route 51 (Coraopolis/McKees Rocks) interchange. The project also included guiderail replacement, highway lighting and signing upgrades, new pavement markings and delineation, and other miscellaneous construction work.

    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 1,200 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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