The Pennsylvania Department of Transportation will be pumping $2.9 million and loads of concrete into sinkholes beneath Route 30 between Downingtown and Exton this summer to fix problems it discovered last year.

The construction work is expected to begin Tuesday night under the direction of West Chester’s Road-Con and finish up in October, forcing various Route 30 lane closures and traffic pattern changes between the Business Route 30 interchange and the Clover Mill Road overpass, according to a West Chester Patch report by Justin Heinze.

A dirt-to-concrete median transformation, 250-hole drilling and pressure grouting operation, storm drainpipe relocation and road resurfacing are all part of the months-long project.

PennDOT found the first sinkhole while repairing a drainage pipe not far from Clover Mill Road and subsequently identified several more via ground-penetrating radar, the article noted.

Read more about the upcoming Route 30 project on West Chester Patch here.