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U.S. Route 1 in New Jersey: Map


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U.S. Route 1 in New Jersey is a portion of the United States highway which parallels the East Coast of the United States, running 2,390 miles (3,846 km) from Key West, Floridamarker in the south, to Fort Kent, Mainemarker at the Canadianmarker border in the north, of which are in New Jerseymarker. In New Jersey, it runs from the state capital in Trentonmarker, paralleling Interstate 95 and the New Jersey Turnpike while heading northeast to the George Washington Bridgemarker in Fort Leemarker.

Route description

Upon crossing the Delaware River into New Jersey from Pennsylvaniamarker, the famous "Trenton Makes" Bridge is seen parallel to US 1 on the west side. US 1 begins as the long Trenton Freeway from the Pennsylvania state line through the city of Trentonmarker up to Lawrence Townshipmarker in Mercer Countymarker. It then alternates between a 4-lane and 6-lane (mostly due to old bridges that weren't reconstructed when the highway was widened) principal arterial highway traveling through the Lawrence and West Windsormarker townships in Mercer County, the Plainsboromarker, South Brunswickmarker, North Brunswickmarker townships, the city of New Brunswickmarker, and Edisonmarker and Woodbridgemarker townships in Middlesex Countymarker, and the cities of Rahwaymarker, Lindenmarker, and Elizabethmarker in Union Countymarker. This segment is also known as the Herbert Highway and is in length.

it was largely farmland in the early 1980s, by the 1990s the section of US 1 running through West Windsor and Plainsboro became one of the most traffic-congested corridors in the Northeast. A movement to eliminate many traffic lights and replace them with exit ramps and overpasses was put in place. As a result, the traffic lights at Scudders Mill Road, Plainsboro Road, Alexander Road, and Meadow Road were eliminated. While this effort hasn't eliminated the congestion, it has helped to alleviate it. This was followed by building ramps to replace the traffic light at US 130 and US 1 located in North Brunswick Townshipmarker. There is currently a proposal to convert Route 1 into a depressed freeway through the Penns Neck area, and effectively eliminate the notorious Penns Neck Circle where Route 1 meets Washington Road (County Route 571). The project is not slated to begin yet, but it has been in planning for several years now and will likely get the green light in the next couple of years.

The US 1/9 concurrency

At their junction in Woodbridge Townshipmarker, U.S. Route 1 begins a concurrency with U.S. Route 9. The two routes continue north, closely paralleling Interstate 95 and the New Jersey Turnpike, until they join I-95 in Fort Leemarker, crossing the George Washington Bridgemarker into New York Citymarker.


The Trenton Freeway, a freeway through the city of Trenton, was built in the 1950s; the entire length of the first 5.5-mile (8.8 km) segment of the freeway was completed in 1967. When it was first constructed, the freeway's route number designation was Route 174. The original freeway only extended up to Whitehead Road in Lawrence Township. In 1967, the New Jersey Department of Transportation recommended an extension of the freeway from Whitehead Road to the traffic light at Bakers Basin Road and Franklin Corner Road. Once the extension was completed, the route number was then changed to U.S. Route 1. The former alignment of U.S. 1 along surface streets in Trenton was renumbered U.S. Route 1 Business.

During the development of the Interstate Highway System, New Jerseymarker and Pennsylvaniamarker considered having Interstate 95 cross over the Trenton-Morrisville Toll Bridge, and continue north on the existing U.S. 1. The project was opposed due to inadequate highway standards (lack of shoulder ramps, and only a mere two lanes in each direction). During this time, both states sought alternate routes for the proposed I-95. In 1960, New Jersey and Pennsylvania decided to designate the Scudder Falls Bridgemarker as I-95.

There had been plans to create a west-east spur of the New Jersey Turnpike, called Route 92. It was to begin just north of the intersection of Ridge Road and U.S. Route 1 in South Brunswickmarker, and terminate at the mainline of the New Jersey Turnpike (Interstate 95) at Exit 8A in Monroe Townshipmarker.

Major intersections

County Location Mile Roads Notes
Trenton-Morrisville Toll Bridge over Delaware River
Mercermarker Trentonmarker 0.10 Northbound exit, southbound entrance
Warren Street - Capitol Complexmarker Southbound exit and entrance
0.76 - South Broad Street, Chambersburg Southbound exit, northbound entrance
0.90 - Train Stationmarker
1.34 Perry Street
2.72 Mulberry Street Northbound exit and entrance
2.87 Northbound exit, southbound entrance
Lawrence Townshipmarker 3.75
5.24 Southbound exit, northbound entrance
North end of freeway section
6.76 , Philadelphiamarker I-295 Exit 67
Middlesexmarker North Brunswick Townshipmarker 22.90 Interchange
24.64 Interchange
New Brunswickmarker 27.19 Interchange
Edison Townshipmarker 31.96 I-287 Exit 1
Woodbridge Townshipmarker 34.55 GSP Exit 130; access to Parkway northbound only and from Parkway southbound only
35.89 Interchange, south end of US 9 overlap
U.S. Route 1/9 continues northward through New Jersey

Related routes

There are two remaining bannered spurs of US 1 in the state of New Jersey:

The following state highway was also formerly designated as a bannered spur of US 1:


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