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Pennsylvania Route 100

Pennsylvania Route 100 is a 59.4-mile (95.6 km) long state highway in the U.S. state of Pennsylvania that runs from U.S. Route 202 (US 202) near West Chester north to PA 309 in Pleasant Corners. The route runs between the western suburbs of Philadelphia and the Lehigh Valley region of the state, serving Chester, Montgomery, Berks, and Lehigh counties. PA 100 intersects several important highways including US 30 in Exton, the Pennsylvania Turnpike (Interstate 76, I-76) near Lionville, US 422 near Pottstown, US 222 in Trexlertown, and I-78/US 22 in Fogelsville. PA 100 has several sections which are a multi-lane divided highway with some interchanges, including between US 202 and the Pennsylvania Turnpike in Chester County, between south of Pottstown and New Berlinville, and between Trexlertown and Fogelsville.

Pothole repair
Traffic

PennDOT Schedules Road Repairs in Chester County

March 9, 2025March 9, 2025 - by Alec Robson

CHESTER COUNTY, PA —The Pennsylvania Department of Transportation (PennDOT) announced its maintenance crews will address deteriorating pavement conditions across Chester County, as part of efforts to manage the challenges posed …

PennDOT Schedules Road Repairs in Chester County Read More

Traffic, lane closed
Traffic

Construction Scheduled for U.S. 422 and Route 100 as Part of $83.6M Reconstruction Project

February 28, 2025February 28, 2025 - by Alec Robson

LOWER POTTSGROVE TWP, PA — The Pennsylvania Department of Transportation (PennDOT) has announced construction activities next week on U.S. 422 and Route 100 in North Coventry Township, Chester County. The …

Construction Scheduled for U.S. 422 and Route 100 as Part of $83.6M Reconstruction Project Read More
Travel Restrictions
Regional

Roadwork Scheduled on U.S. 422, Route 100, and Route 724 in Montgomery County

February 21, 2025February 21, 2025 - by Alec Robson

LOWER POTTSGROVE TOWNSHIP, PA — The Pennsylvania Department of Transportation (PennDOT) has announced upcoming roadwork next week as part of an $83.6 million reconstruction project on U.S. 422 and nearby …

Roadwork Scheduled on U.S. 422, Route 100, and Route 724 in Montgomery County Read More

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