I-76 Viaduct Repairs
CONSTRUCTION UPDATE: FALL/WINTER 2019/2020
Construction Finished Until Spring 2020
Fall/Winter 2019/2020 — PennDOT’s contractor has finished work for the 2019 construction season on the topside of the Interstate 76 viaduct between 30th Street and University Avenue in Philadelphia. Repairs to structural components beneath the viaduct will continue over the winter as conditions permit. Work on the topside of the viaduct will resume in early spring 2020.
Throughout 2019, PennDOT’s contractor repaired the surface of a significant part of the eastbound viaduct during 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 surface repairs that will take place in both the eastbound and westbound directions in 2020, motorists should anticipate similar impacts to traffic as work is performed on the remaining portion of the expressway. These impacts could include nightly lane closures and periodic weekend full closures of the expressway. In addition, various on-off ramps may be closed periodically as the work progresses. A revised construction scheduled 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 https://i76viaduct.com/more-info/contact to receive travel advisories and other project-related information)
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 will work in 2020 on the bridge that carries the Schuylkill Expressway over Route 23 and Arrowmink Creek in West Conshohocken Borough, Montgomery County. Construction crews will be performing joint, bearing, and structural steel repairs to this structure.
Work on this bridge will require periodic short-term, overnight single lane closures any night, with extended hours on weekends, in either or both of the eastbound and westbound directions.