Lafayette Street Interchange

Traveling Construction Lafayette Street Interchange

Lafayette Street Interchange Project - Milepost 331.6

Project Overview

The Pennsylvania Turnpike’s Lafayette Street Interchange Project is located in Plymouth Township at Milepost 331.6 and is a major component of Montgomery County’s overall Lafayette Street Extension Project. The Interchange Project is currently in the final design phase, which includes the development of complete plans and specifications for the construction of the proposed ramps. Below is an artist's rendering of the proposed design and how it will connect to existing Lafayette Street.

Google Earth View of Lafayette Street Interchange Project

The Lafayette Street Interchange was conceived to help alleviate existing traffic problems and spur economic development in the vicinity of Norristown, PA. The interchange falls between the existing Valley Forge and Norristown interchanges and offers a more direct route for Turnpike motorists to access Norristown, Conshohocken, and interspersed commercial, industrial, and residential developments along the east shore of the Schuylkill River.

Project Location Map

The project is located at milepost 331.60 on the PA Turnpike in Plymouth Township, Montgomery County

More Details on Montgomery County's Lafayette Street Extension Project

Montgomery County is leading the ongoing Lafayette Street Extension Project between the future PA Turnpike interchange area and downtown Norristown. It will significantly improve access to Norristown’s Main Street business district and its riverfront area. It will also reduce congestion on Ridge Pike in Plymouth Township and Norristown and improve business access along the entire Main Street / Ridge Pike – Conshohocken Road corridor.

The project is broken into five phases, as follows:

Phase 1: Extend Lafayette Street toward Conshohocken Road and Diamond Avenue.
Project constructed by Montgomery County and open to traffic

Phase 2: Widen and improve Ridge Pike, Diamond Avenue, and Fairfield Road.
Project constructed by Montgomery County and open to traffic

Phase 3: Reconstruct and widen existing Lafayette Street, relocate the Schuylkill River Trail, and create a linear park.
Project constructed by Montgomery County and open to traffic

Phase 4: New Interchange with PA Turnpike.
Project in design by the Pennsylvania Turnpike Commission

Phase 5: New Interchange with US-202 / Dannehower Bridge.
Future project (planned by PennDOT)

For more details visit the Montgomery County websites by selecting the links below:


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Team & Contact Information

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