Preliminary Design began in Spring 2012 on the future reconstruction and six-lane widening of the Pennsylvania Turnpike (I-76) between mileposts 312 and 319. The project area begins just west of the Downingtown Interchange (Milepost 311.60) and extends east to the approximate location of the Route 29 Interchange (Milepost 319.44). The seven-mile project corridor traverses Charlestown, Upper Uwchlan, Uwchlan, and West Pikeland Townships in Chester County.

The Project's Design Team presented the project’s preliminary design to the public at the Open House Plans Display in May 2014 and is currently progressing final design.

The project is split into two construction sections, both of which are currently in design. The first, from Milepost 311.60 to Milepost 316.19, is anticipated to undergo construction from fall 2019 through fall 2021. The second section, from Milepost 316.19 to Milepost 319.44, is anticipated to undergo construction from fall 2021 through fall 2023. Between 2010 and 2016, three overhead bridges (Bodine Road, Valley Hill Road and Yellow Springs Road) were replaced in order to accommodate the widening of the mainline I-76 from four to six lanes.

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