King of Prussia, PA – The Pennsylvania Department of Transportation (PennDOT) announced today that Stage 3 construction will begin next weekend on Route 29 (Morehall Road) under the $22.5 million project to provide long-term remediation on Route 29 (Morehall Road) in East Whiteland Township, Chester County, and on U.S. 202 (Dekalb Pike) in Upper Merion Township, Montgomery County.
Motorists are advised of the following travel restriction:
- Saturday, October 18, through Monday, June 1, 2026, southbound Route 29 (Morehall Road) traffic will be shifted onto one of the newly reconstructed northbound lanes between the Pennsylvania Turnpike Interchange and Great Valley Parkway.
Once the traffic shift is implemented on Saturday, October 18, northbound and southbound motorists will utilize a single lane in each direction (northbound lanes) until Stage 3 construction to reconstruct the southbound lanes is completed in early June 2026.
Stage 4 construction will implement periodic lane closures to complete the entire project in summer 2026.
Drivers are advised to use an alternate route or allow extra time when traveling through the work area because significant backups and delays will occur.
Under this project, PennDOT’s contractor will utilize a limited mobility grouting program, which will involve drilling a series of holes through the pavement in a “grid” pattern. Pressurized grout will be injected into the drilled holes to fill subsurface voids beneath the roadway. The filling of subsurface voids will help stabilize the ground beneath the pavement and will reduce the risk of future sinkholes. Additional work includes drainage improvements and pavement reconstruction.
Remediation of sinkholes on Route 29 (Morehall Road) and U.S. 202 (DeKalb Pike) were deemed necessary for a long-term solution following reoccurring sinkholes and emergency repairs resulting in traffic disruptions along both corridors.
Heidelberg Materials, LLC of northeast region, is the general contractor on this project, which is financed with 100 percent federal funds.
For more information, please visit the Route 29 (Morehall Road) and U.S. 202 (Dekalb Pike) sinkhole remediation project pages.
Motorists can check conditions on major roadways by visiting www.511PA.com. 511PA, which is free and available 24 hours a day, provides traffic delay warnings, weather forecasts, traffic speed information, and access to more than 1,000 traffic cameras. 511PA is also available through a smartphone application for iPhone and Android devices, by calling 5-1-1, or by following regional X alerts.
For a complete list of construction projects impacting state-owned highways in Bucks, Chester, Delaware, Montgomery, and Philadelphia counties, visit the District 6 Traffic Bulletin.
Subscribe to PennDOT news and traffic alerts in Bucks, Chester, Delaware, Montgomery, and Philadelphia counties at www.penndot.pa.gov/District6.
Information about infrastructure in District 6, including completed work and significant projects, is available at www.penndot.pa.gov/D6Results. Find PennDOT’s planned and active construction projects at www.projects.penndot.gov.
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MEDIA CONTACT: Helen Reinbrecht, hreinbrech@pa.gov
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