Milepost 57 to Milepost 67 Design

Project Overview

This 10 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 and reconstruction of the Irwin Interchange along with improving the highway to current standards. The widened roadway will consist of three 12-foot lanes in each direction and 12-foot right shoulders separated by a 26-foot-wide median. Within the limits of the Project, two overhead structures (Trafford and Harvison Roads), and numerous structures carrying the mainline Turnpike will be replaced. The Project does not include the Pittsburgh Interchange, Northern Pike and State Route 130. The Project cost estimate is more than $300 million.

Preliminary design for this project began in 2012 and was completed in 2016, with final design starting on Trafford Road in 2015 and the MP 57 to 61.5 phase in 2016. The final design phase includes right-of-way acquisition and environmental permitting along with many design efforts including structures, traffic control, detours, utility relocations, roadway, drainage and stormwater management.

Construction on Trafford Road is expected to begin in the fall of 2017, and construction on the mainline is expected to begin in 2023.

Corridor Overview

Upon completion of the MP57 to MP67 project, the existing four-lane facility will be upgraded to a six-lane facility (three 12-foot travel lanes eastbound and westbound) with a 26-foot wide median and 12-foot outside shoulders. The project will include the construction of storm drainage facilities, stormwater facilities, pavement markings, signing, lighting, and the mitigation of impacted wetlands, streams, and other environmental features.

Bridge Overview

To accommodate the widening of the mainline Turnpike, existing bridges will be replaced to provide greater horizontal widths and to improve vertical clearances as may be necessary.

Photos of several of the project's existing bridges are provided below.

  • photo

    Trafford Road Bridge (WB-500) over Mainline

  • photo

    Harvison Road Bridge (WB-504) over Mainline

  • photo

    Mainline Bridge (WB-464) over Abers Creek Road

  • photo

    Mainline Bridge (WB-465) over Turtle Creek Industrial Railroad

  • photo

    Mainline Bridge (WB-466) over Turtle Creek

  • photo

    Mainline Bridge (WB-509) over Brush Creek

  • photo

    Mainline Bridge (WB-510) over Brush Hill Road

  • photo

    Mainline Bridge (WB-511) over Pennsylvania Avenue

  • photo

    Mainline Bridge (WB-512) over S.R. 0030, Lincoln Highway

Portion of Lyons Run Road to Close in Penn Twp., Westmoreland County Jan. 11

Beginning Jan. 11, the section of Lyons Run Road at Trafford Road/Murrysville Road (S.R. 4033) in Murrysville, Westmoreland County will close to traffic. An approximate three-mile detour will be in effect until the road reopens in mid-September.

The posted detour directs traffic to Trafford Road to Pleasant Valley Road and back onto Lyons Run Road.

The closure is needed so crews can work near a tributary leading to Lyons Run Creek prior to replacing the Trafford Road Bridge that carries traffic over the PA Turnpike at milepost 59.6. This early-action work and bridge replacement is a part of the future Total Reconstruction and Widening of the Turnpike between milepost 57 and 67, which is scheduled to start in 2023.

Trafford Road Bridge Stage 3 Begins

The Trafford Road Bridge project has entered Stage 3 where traffic is shifted to the outside of the Turnpike to allow access to the median for pier construction. The outside WB lane that travels under the existing bridge has a vertical clearance of 13’7” making passage by large trucks and buses a potential hazard. Project signage has been amended to direct truck and bus traffic to the left lane only.

This stage is scheduled to last until approximately mid-August, 2018.

Plan X Operations Begin May 5th & 6th

The Plan X operations to raise the precast concrete bridge beams into place over the mainline Turnpike are scheduled for Saturday/Sunday May 5/6, 2018 for westbound operations and Saturday/Sunday May 19/20, 2018 for eastbound operations. Both Plan X procedures are scheduled to last a maximum of 5 hours each beginning at 12:01 AM with the Plan X lifted no later than 6:00 AM. Single lane patterns through the work zone will be in place for several hours prior to and after the total shut down phase.

UPDATE: The Eastbound Plan X between Pittsburgh and Irwin Interchanges has been rescheduled for Saturday/Sunday May 19/20 from 12:01 AM until 5:00 AM.

Section of Trafford/Murrysville Roads in Westmoreland County to Close July 5

Three-month closure needed for Turnpike work in Penn Township.

The Pennsylvania Turnpike Commission advises motorists that a section of Trafford Road/Murrysville Road (State Route 4033) in Penn Township, Westmoreland County will close to traffic beginning July 5.  The road will be closed where it crosses over the Turnpike at milepost 59.6 and will reopen in approximately three months.

The closure is needed to re-align and construct the roadway to connect with the new overhead bridge carrying Trafford Road/Murrysville Road over the Turnpike.

The approximate 10-mile detour suggested for motorists is:

Northbound Traffic: Trafford Road (1.5 miles) to Pleasant Valley Road (4.5 miles) to State Route 130 west (3.1 miles), back to Murrysville Road

Southbound Traffic: Murrysville Road (1.5 miles) to State Route 130 east (3.1 miles) to Pleasant Valley Road (4.5 miles), back to Trafford Road.

Signage will be posted along the detour route during the closure. This work is scheduled to be completed in the fall.

The contractor, Beech Construction of Carnegie, was awarded the $10 million contract in Nov. 2017. The entire scope of work includes replacing the Lyons Run Road and Trafford/Murrysville Road bridges in addition to a box culvert. Two access ramps will also be constructed, along with shoulder widening and mainline median work.

This early-action work and bridge replacement is a part of the future Total Reconstruction and Widening Project of the PA Turnpike between mileposts 57 and 67 scheduled to begin in 2023.