Milepost A53-A57 Northeast Extension 

Traveling Construction Milepost A53-A57 Northeast Extension 

Total Reconstruction Project

Project Overview and Schedule

The Pennsylvania Turnpike Commission (PTC) plans to reconstruct and widen the Northeast Extension (I-476) from Milepost (MP) A53 to A57. The project corridor traverses Lower Macungie Township, passing through Upper Macungie Township, and ending in South Whitehall Township in Lehigh County.

The existing four-lane highway is 72 feet wide and will be widened and reconstructed to 122 feet wide. This new roadway will accommodate three 12-foot travel lanes in each direction, a 26-foot median, and 12-foot outside shoulders (see rendering below). The Design Team is currently developing design plans and coordinating studies in support of the environmental permitting process.  Below is the anticipated schedule.

As part of this multi-phase project, the PTC is advancing construction on the five overhead bridges. The Tilghman Street Bridge (S.R. 1002) is the first bridge and is currently under construction.  These bridges must be lengthened to accommodate the wider turnpike roadway before the reconstruction and widening can begin.

The PTC will coordinate closely with PennDOT and local municipalities as final design and construction progress. The goal is not to disrupt traffic, if possible. Frequently visit our website to stay current on the progress made and the impacts this work may have on your travel on the Turnpike. Sign up for email updates on the news page.

Please contact us if you have questions or concerns. Drive safely.

PTC MP A53-A57 Updated Schedule

Mainline Typical Sections      Before/After

The following display includes the existing facility as it looks today and the proposed roadway upon completion.

PTC MP a53-a57 Typical Section

Project Location Map

The following map shows the project limits and the location of the five overhead bridges. Click the map image for a printer-friendly PDF of this map.

PTC - MP 53-57 - Updated Map-v4 1

Frequently Asked Questions

What is the scope of the project?

What are the project's purpose and need?

When will MP A53 - A57 mainline construction take place?

How is this project funded?

How much will the project cost?

Will tolls have to be increased to pay for this project?

More Project Resources

Design & Construction Details

Find out about planned design & construction activities for this project.

Learn More

News & Public Involvement

Learn how we stay connected with the public about this project.

Stay Updated

Team & Contact Information

Learn about the team that we will work with to complete the work on this project.

Contact the Team