COATESVILLE, PA — Drivers who rely on the Coatesville Downingtown Bypass should prepare for overnight delays next week as PennDOT crews begin milling and paving work along a heavily traveled section of westbound U.S. 30 in Chester County.
At a Glance
- Roads Affected: Westbound U.S. 30 (Coatesville Downingtown Bypass)
- Dates: June 15-19, 2026
- Times: 7:00 PM-5:00 AM the following morning
- Reason: Milling and paving
According to PennDOT, a lane closure will be in place on westbound U.S. 30 between Airport Road and Route 340 (Kings Highway) from Monday, June 15, through Friday, June 19, during overnight hours.
No detour has been announced, but motorists should expect delays as traffic merges through the active work zone. Plan extra time for travel, particularly during evening and overnight trips, and seek alternate routes if congestion develops.
The paving operation is part of a $9.3 million PennDOT project designed to improve safety and extend the lifespan of the western section of the Coatesville Downingtown Bypass. Planned improvements include milling existing pavement, completing base repairs, applying a new bituminous overlay, reinstalling edge-line rumble strips, and refreshing pavement markings.
The project spans portions of the City of Coatesville and Caln, Sadsbury, Valley, and West Caln townships.
All work is weather dependent and may be rescheduled if conditions are unfavorable.
Drivers traveling through the corridor should remain alert for changing traffic patterns, reduced lane capacity, and construction activity throughout the week.
For the latest road closures, lane restrictions, construction updates, and commuter alerts across Chester County, visit the MyChesCo Traffic Center at https://www.mychesco.com/traffic/.
Support the local news that supports Chester County. MyChesCo delivers reliable, fact-based reporting and essential community resources—free for everyone. If you value that, click here to become a patron today.