Project Overview
This ten mile Total Reconstruction and Widening Project (Project) of the mainline Pennsylvania Turnpike between Mileposts (MP) 57 to 67 is located in Allegheny and Westmoreland Counties and in the municipalities of Monroeville, Murrysville, Hempfield Township, Penn Township, Manor Borough, Irwin Borough, North Irwin Borough and North Huntingdon Township. The Project will involve widening the Turnpike from two to three lanes in each direction along with improving the highway to current standards. This Project does not include the Pittsburgh Interchange, Irwin Interchange, Northern Pike, or State Route 130. The Project cost estimate is more than $400 million.
Preliminary design for this project began in 2012 and was completed in 2016. Because bridges over the mainline need to be replaced in order to accommodate the wider roadway widths, the replacement of the Trafford Road Bridge over the Turnpike, the Trafford Road Bridge over Lyons Run, and the Lyons Run culvert were advanced as a stand-alone project. The final design began in 2015 and construction was completed in 2019.
The Harvison Road Bridge (T-869) in Penn Township has been removed. Construction began in August 2024, with completion anticipated by the second quarter of 2025.
Construction of the mainline widening will be split into two sections. For the east section (MP 61 to MP 67), construction is anticipated to begin in 2032. Construction of the west section (MP 57 to MP 61) will be determined by the first section's schedule and available funding.
Typical Roadway Sections
The following display includes a visual depiction of the existing facility as it looks today and the widened roadway upon completion.
At project completion, the section will consist of 6 travel lanes (3 westbound and 3 eastbound), with a 26-foot median, and 12-foot outside shoulders.
Project Maps
Project Schedule
