Corridor Overview
The Pennsylvania Turnpike Commission is making major improvements to the Northeast Extension (I-476) to provide a safer, smoother and more reliable travel experience. The multi-phase project covers approximately 14 miles, from milepost A43 in Bucks County to milepost A57 in Lehigh County.
Improvements throughout the corridor will include rebuilding aging pavement and infrastructure, widening the Turnpike to three lanes in each direction, replacing and modernizing bridges, improving drainage, and upgrading interchanges. Together, these investments will help reduce congestion, improve traffic flow and prepare this busy corridor for future travel needs.
Construction will take place in phases so the PA Turnpike can remain open to traffic throughout the project. Safety will remain a top priority, and the timing of each phase will depend on available funding.
The first phase, at the southern end of the corridor, includes widening the Turnpike between mileposts A43 and A44 and fully reconstructing the Quakertown Interchange. Improvements include new ramps, replacement of the State Route 663 bridges, reconstruction of interchange roadways, and new maintenance access at Kumry and Steinsburg roads. This work will improve traffic flow through the interchange while preparing the area for future corridor improvements.
Farther north, reconstruction and widening will continue in three sections: A44–A48, A48–A53 and A53–A57. Planned work includes rebuilding the roadway, replacing mainline and overhead bridges, expanding stormwater management systems, and making other infrastructure improvements designed to serve customers for decades to come.
Construction schedules for all four sections are provided below. The A48–A53 section has been delayed while archaeological coordination continues with appropriate agencies and Tribal communities.
Once all phases are complete, customers can expect a safer, more modern roadway with increased capacity, fewer bottlenecks and improved reliability along one of the Pennsylvania Turnpike’s busiest corridors.
