1 Route 1, over Forrestal Road

On the record

Address

Initiated from the Bridge Management System, this project will replace the structurally deficient bridge, built in 1932.

Type

Roads & infrastructure

Where it stands

Proposed

Status as of

Oct 14, 2026

Date on record

2012-04-04 (filed)

Record number

123580

Source

New Jersey Department of Transportation (nj-stip-projects)

Official record

View the source record

Where it is

On the Jody page for this ZIP code:

• Princeton (08540)

See it on the Development map

More projects in Princeton (08540)

• 1 Route 1, Alexander Road to Mapleton Road Improvements will help relieve congestion at Route 1 from the “Dinky” railroad bridge to approximately Plainsboro Road by increasing the number of travel lanes from 3 to 4 lanes per direction on Route 1; provide shoulders, deceleration lanes, acceleration lanes, and turn lanes along the corridor for turning vehicles; widen Washington Road at Route 1 to relocate the merge of the 2-lane circle into a single Washington Road lane out of the intersection; increase the Route 1 southbound to Fisher Place jughandle turn; modify existing 3-phase signal at Route 1 and Harrison St. intersection to a 2-phase signal; and provide a Route 1 cross section with 4 lanes per direction at the Millstone River Bridge. This project in West Windsor (Mercer County) and Plainsboro (Middlesex County) is a derivative of the former Rt. 1/CR 571 Penns Neck project (DB #031). The magnitude and scope of work for the Rt. 1 Alexander Rd to Mapleton Rd project is greatly reduced from the Penns Neck project ($150 M vs. $35 M). Roads & infrastructure · Proposed 2017-06-07
• 64 Route 64, Bridge over Amtrak Initiated by the Bridge Management System, this project will replace the structurally deficient bridge. Roads & infrastructure · Proposed 2014-08-20