Eastbound Viaduct Repairs Completed, Construction Continues on Westbound Side
Summer 2020 – With construction on the eastbound side of Interstate 76 finishing in early summer, PennDOT’s contractor will focus on completing westbound pavement repairs and resurfacing this summer before shifting to the final stage of the project to remove and replace the median barrier between University Avenue and 30th Street in Center City Philadelphia.
Weekend long closures of the expressway are expected to end once work finishes on the westbound side in August. Median work will then get underway, requiring an around-the-clock closure of a westbound lane between University Avenue and 30th Street through late 2020 for median replacement.
Repairs to the structural components beneath the viaduct also will continue until later in the year.
PennDOT in 2019 began repairs on the topside and underside of the Interstate 76 viaduct between 30th Street and University Avenue in Philadelphia. Throughout 2019, PennDOT’s contractor repaired the surface of a significant part of the eastbound viaduct overnight and weekend operations.
As the top side of the viaduct was repaired and repaved during the 2019 construction season, work continued on the underside of the structure, where crews are rehabilitating the viaduct’s support columns. The contractor is utilizing a construction barge along the west side of the Schuylkill River to reach hard-to-access sections of the viaduct.
Rehabilitation of the surface of the eastbound structure included cleaning and refurbishing the eastbound viaduct’s stormwater drainage system and repairs to the concrete deck’s expansion dams, parapets, and deteriorated pavement overlay. During several full weekend closures of the eastbound expressway in 2019, crews milled and overlayed large sections of the eastbound right lane and shoulder.
During the remaining surface repairs that will take place in the westbound direction in 2020, motorists should anticipate similar impacts to traffic as work is performed on the remaining portion of the expressway. In addition, various on-off ramps may be closed periodically as the work progresses. A revised construction schedule will be published on the project website prior to the start of work in 2020.
PennDOT will continue to communicate travel impacts in weekly Travel Advisories, which will be issued to local media and distributed through the project website to subscribers. Sign up at www.i76viaduct.com/more-
PennDOT is placing an overlay of synthetic polyester polymer concrete (PPC) as a new riding surface on the viaduct’s travel lanes. The PPC cures (dries and hardens) faster than conventional pavement, allowing the viaduct’s surface to be rehabilitated while minimizing the need for long-term lane closures that are normally required for conventional materials.
In addition, PennDOT’s contractor has finished work on the bridge that carries the Schuylkill Expressway over Route 23 and Arrowmink Creek in West Conshohocken Borough, Montgomery County. Joint, bearing, and structural steel repairs to this structure have been completed. Similar repairs to other I-76 bridges in Montgomery County were made earlier this year.