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    Southbound I-579 Ramp to Boulevard of the Allies Closure Sunday Morning in Pittsburgh

    October 16, 2026

    Pittsburgh, PA – The Pennsylvania Department of Transportation (PennDOT) is announcing bridge inspection activities on the ramp that carries traffic from southbound I-579 to the outbound Boulevard of the Allies (Route 885) in the City of Pittsburgh, Allegheny County will occur Sunday, October 18 weather permitting.

    Crews will conduct inspection activities on the ramp from southbound I-579 to southbound Boulevard of the Allies. To allow the work to occur, the ramp will close to traffic from 6:00 AM to noon on Sunday. Ramp traffic will be detoured.

    Posted Detour

    Southbound I-579 to southbound Boulevard of the Allies

    • From southbound I-579, continue past the closed ramp toward Routes 19/51/Liberty Bridge
    • Continue through the Liberty Tunnel
    • Turn right onto the ramp to north truck 19/north 51 (Saw Mill Run Boulevard)
    • Follow north Route 19/51 (Saw Mill Run Boulevard) toward West End Bridge/Downtown
    • Take the right-hand off-ramp to Route 51/Route 837 toward McKees Rocks/West End
    • Continue on southbound Route 837 (West Carson Street)
    • Take the ramp to East I-376/North I-279 onto the Fort Pitt Bridge
    • Take Boulevard of the Allies/Liberty Avenue/PPG Arena (Exit 70A) exit
    • Bear right for Boulevard of the Allies
    • End detour

    Crews from Markosky Engineering and the Sofis Rigging Company will conduct the inspection activities.

    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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