I-76 Viaducts


Welcome to  the source of information about the  rehabilitation of Schuylkill Expressway/I-76 viaducts in Center City and Conshohocken…more


PennDOT’s $47.1 million project to repair and rehabilitate two I-76 (Schuylkill Expressway) viaducts in Center City Philadelphia, along with several other smaller structures in Montgomery County, was completed in July 2021 after two-plus years of construction.

This project repaired or replaced the Center City viaduct’s sub-structure components, drainage system, and the concrete deck’s expansion joints. The contractor also resurfaced the viaduct’s concrete deck, using fast-curing PPC (Polyester Polymer Concrete) that minimized the need for long-term lane closures.

All traffic restrictions that were in place due to this project are now lifted.

Thank you for your interest and your patience during this important project that will help keep one of Philadelphia’s busiest highways structurally sound and safer for years to come.

I-76 Viaduct Repair Area - Center City

The Center City project area extended 6,120 feet from Arch Street, near 30th Street, east to the CSX Railroad bridge, near the University Avenue Exit.

Imagery: Google Maps

I-76 Viaduct Repair Area - Conshohocken

The bridge in Conshohocken, Montgomery County, (above) which carries the Schuylkill Expressway/I-76 over Route 23/Conshohocken State Road just east of the Conshohocken/I-476 interchanges has been repaired. Several other I-76 bridges in Montgomery County also were repaired in 2019 and early 2020.

Satellite image of Conshohocken project
Imagery: Google Maps
Chestnut Street Bridges

PennDOT is rehabilitating, repairing and repainting the steel superstructure and replacing the deck of the Chestnut Street bridge over the Schuylkill River that connects Center City Philadelphia with University City and West Philadelphia. The $103,589,847 project also will replace the decks of three adjacent Chestnut Street bridges, two viaducts on Schuylkill Avenue and two ramp structures for I-76 .

PennDOT is in the midst of a long-term, multi-phase initiative to rebuild and improve Interstate 95 in Pennsylvania. Five major projects to reconstruct the I-95 between the Interstate 676 and Cottman Avenue interchanges in Philadelphia are in various stages of design or construction, including active projects at the Girard Avenue, Allegheny Avenue and Betsy Ross/Bridge Street interchanges. Construction also is underway on the Adams Avenue Connector.

Grays Ferry Bridge

The Pennsylvania Department of Transportation is investing $13.3 million to repair and rehabilitate the deteriorated superstructure of the Grays Ferry Avenue bridge over the Schuylkill River, AMTRAK and CSX rail lines. The bridge is situated between 34th Street and Woodland Avenue in Philadelphia.

U.S. 1

The Pennsylvania Department of Transportation is investing almost $90 million to rehabilitate the 2,589-foot long U.S. 1/Roosevelt Expressway viaduct between the Broad Street and Wissahickon Avenue/Germantown Avenue exits in the Nicetown section of Philadelphia.

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