Long-term transportation improvements are in the works for one of Chester County’s most heavily traveled corridors. The Pennsylvania Department of Transportation (PennDOT) is advancing plans to redesign several interchanges along a 7.5-mile stretch of U.S. Route 30, with the goal of improving traffic flow, reducing congestion, and enhancing overall safety for commuters.

Which Areas Will Be Affected?

The proposed improvements focus on interchanges serving the following Chester County communities:

• Caln Township

• East Brandywine Township

• West Brandywine Township

• Easttown Township

• Uwchlan Township

• Downingtown Borough

These areas are among the most active residential and commercial markets in Chester County, making Route 30 a critical artery for both daily commuters and local economic growth.

Why Is This Project Happening?

According to PennDOT and its engineering consultants, the project is designed to address long-standing issues along the corridor, including:

• Traffic congestion during peak commuting hours

• Safety concerns and accident-prone interchanges

• Anticipated population and development growth

• Outdated interchange designs that no longer meet current transportation demands

The overarching goal is to create a safer, more efficient transportation system that can support Chester County’s continued growth over the next several decades.

Timeline and Cost

While this is still in the planning phase, the project is expected to move into construction around spring 2034, with an estimated total cost of approximately $874 million.

Most of the funding is expected to come from the federal government, with Pennsylvania contributing a smaller portion of the overall budget.

Source: Philadelphia Inquirer, January 21, 2026