Milepost A38-A44 Total Reconstruction Design & Construction Details
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Mainline Widening Construction Activities
Construction Update: Fall 2024
Fall 2024 – Northbound and southbound traffic on the Pennsylvania Turnpike’s Northeast Extension (Interstate 476) will be shifted onto new pavement this fall through the entire work zone between Mileposts A38 and A44 in Montgomery and Bucks counties as the $180 million project moves into the next major phase of reconstruction and widening.
The outer sections of the new Turnpike bridges over Kumry Road and the Ridge Valley, Unami, Schmoutz, and Molasses creeks were completed by early fall, along with the connecting sections of pavement between the bridges in the northern half of the project area.
Traffic was shifted onto the new outer lanes and expanded shoulder on the northern section in September (see above) while crews wrap up paving operations on the southern half. Demolition of the center sections of four bridges, removal of the existing pavement, and installation of drainage components got underway immediately after the September shift in the northern half of the project.
Southern-half construction of the outer lanes and shoulders is expected to finish in November, leading to a final traffic shift, expected by the Thanksgiving holiday, moving all traffic to the outer lanes of the work area.
Following that shift, demolition of the center portion of the remaining bridge over the Ridge Valley Creek will begin and excavation of the existing four lanes of remaining pavement will get underway on the southern half of the project. The Turnpike’s contractor will then begin work to finish the bridge and excavate and install the remainder of the new stormwater drainage system before constructing four lanes of new pavement and a new median in 2025.
Excavation, grading, and ground stabilization for 16 sediment basins were completed over the past summer. The basins were constructed to a temporary condition to control sediment and will be converted to their final conditions later in the project when final ground stabilization is achieved and construction of the center portion of the roadway finishes in late 2025.
Turnpike (I-476) Northeast Extension construction during this stage of the project is expected to take place Monday through Friday between 7:00 AM and 5:00 PM through July 2026 No long-term lane restrictions are expected during this stage, but occasional nighttime lane closures and traffic paces will be required.
Motorists are advised to slow down to posted work-zone speed limits. The Turnpike is employing Automated Work Zone Speed Enforcement Cameras across the work area to enhance worker safety. Violators of the reduced Work Zone speed limits may be ticketed through the mail.
The current contract is a continuation of the reconstruction and widening that was completed in 2021 between mileposts A31, just north of the Lansdale Exit, and A38, near the Clump Road overpass in Franconia Township. The Extension was widened and improved between the Mid-County Interchange and the Lansdale Interchange under an earlier contract that was completed in 2017.