The Pennsylvania Department of Transportation is beginning the final stage of rebuilding a 2.5-mile stretch of U.S. Route 202 in Chester County, which means lane and ramp closures during the weekend.

Crews plan to shift two northbound lanes over to the newly built northbound side by 10 a.m. Sunday. Traffic will stop for about 15 minutes.

Beginning 8 p.m. Saturday, Route 202 will be reduced to one northbound lane to relocate concrete barriers, remove traffic lines and paint new ones. The Route 30 Bypass east off-ramp to Route 202 north and the Route 202 north off-ramp to Route 401 will be closed and detoured.

PennDOT's $63.3 million project is rebuilding and widening to six lanes of Route 202 between Route 401 and U.S. Route 30. Construction on this portion of highway is scheduled to be finished in summer 2016, said Eugene Blaum, PennDOT spokesman.

"This is an important milestone," he said.

After the new northbound traffic pattern on Route 202 is established, crews will rebuild the center of the highway and install a new concrete median barrier and glare screen.

Construction on this stretch of Route 202 began in April 2013.

Michaelle Bond