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    Allegheny County

    ​I-376 Parkway East - Commercial Street Bridge Replacement

    Project Status

    Step 1:
    Development

    Step 2:
     Design

    Step 3:
    Construction

    Step 4:
    Completed

    Project Overview

    County: Allegheny
    Municipality: City of Pittsburgh
    State Route: I-376
    Local Name: Commercial Street Bridge
    Project Type: Bridge Replacement
    Construction Start: 2024
    Construction End: Summer 2027
    Last Updated: 12/17/2024

    The $95 million I-376 Commercial Street Bridge Replacement project is between the Edgewood/Swissvale (Exit 77) interchange in Swissvale Borough and Squirrel Hill Tunnel in the City of Pittsburgh spans over Nine Mile Run, Frick Park, and Commercial Street. This project will utilize Accelerated Bridge Construction (ABC) Techniques to laterally slide the new bridge onto the existing alignment of I-376. The Arched Delta Frame Structure will be built just south of the existing Commercial Street Bridge on temporary foundations and will be slid onto the existing alignment once demolition of the existing bridge has occurred.  Work will also include the installation of new overhead signage and eastbound retaining wall, lowering the westbound I-376 off-ramp to Forest Hills/Wilkinsburg Interchange (Exit 78B) to increase vertical clearance under the Parkway East, concrete median barrier replacement, sanitary sewer line relocation, upgrades to guide rail, ITS Devices, Over Height Truck Detection System, and CCTV Cameras, as well as overall site restoration for both Frick Park and the Frick Park walking trail. Motorists can expect single-lane and shoulder restrictions in each direction of I-376 on weekends and weeknights as needed through 2026. Additionally, in 2025, several overnight full closures and detours of eastbound I-376 and a full weekend closure and detour of I-376 in each direction are anticipated to occur.  In 2026, motorists can expect a 25-day full closure and detour of I-376. The overall project is anticipated to conclude in the summer of 2027. The Joseph B. Fay Company is the prime contractor.​​

    Subscribe to news alerts for this project: To help keep motorists informed as work progresses, PennDOT has created an email distribution list for Parkway East traffic advisories and construction updates. Enroll by sending email addresses to ymanyisha@pa.gov​. Please write “Subscribe – Parkway East” in the subject line.​​

    Visual depictions below:

    Commercial Street Bridge rendering

    Contact Information

    Yasmeen Manyisha​
    Press Officer
    ymanyisha@pa.gov

    Submit a Comment

    Public Outreach

    Virtual Public Meeting

    Fay, S&B USA Construction, and PennDOT held a virtual public meeting on Wednesday, August 14, 2024 to discuss the project plans for the $95M Commercial Street Bridge Replacement. The presentation was followed by a Q&A session.​ Please see the meeting's recording below.

    Project Update

    10/31/2024 - PennDOT District 11 is announcing a lane and shoulder restriction on westbound I-376 (Parkway East) in Edgewood Borough and the City of Pittsburgh, Allegheny County, will occur Saturday, November 2 weather permitting.

    A single-lane and shoulder restriction on westbound I-376 between the Edgewood/Swissvale (Exit 77) interchange and the Squirrel Hill Tunnel will occur as needed from 9 a.m. to 5 p.m. Saturday. Crews will conduct pothole repairs.​

    Press Releases

    Accessibility

    The project documents can be made available in alternative languages or formats if requested. If you need translation or interpretation services, have special needs, or have concerns that require individual attention, please contact the PennDOT Project Manager listed above.

    Title VI

    Pursuant to the Title VI of the Civil Rights Act of 1964, PennDOT does not discriminate on the basis of race, color, national origin, gender, age, or disability. If you feel that you have been denied the benefits of, or participation in a PennDOT program or activity, you may contact the PennDOT, Bureau of Equal Opportunity, DBE/Title VI Division at 717-787-5891.