Route 21 is a state highway in northern New Jersey, running 14.35 mi (23.09 km) from the Newark Airport Interchange with U.S. Route 1/9 (US 1-9) and US 22 in Newark, Essex County to an interchange with US 46 in Clifton, Passaic County. The route is a four- to six-lane divided highway known as McCarter Highway on its southern portion in Newark that serves as a connector between the Newark and Paterson areas, following the west bank of the Passaic River for much of its length. It also serves as the main north–south highway through the central part of Newark, connecting attractions in Downtown Newark with Newark Airport. The portion of Route 21 through Newark is a surface arterial that runs alongside the elevated Northeast Corridor rail line through the southern part of the city and continues north through Downtown Newark while the portion north of Downtown Newark is a freeway. Route 21 intersects many major roads including Interstate 78 (I-78), Route 27, and I-280 in Newark, Route 7 in Belleville, and Route 3 in Clifton.
Route 3 is a major state highway in the northeastern part of New Jersey. The route runs 10.84 miles (17.45 km) from U.S. Route 46 (US 46) in Clifton, Passaic County to US 1/9 in North Bergen, Hudson County. The route is a divided highway for its entire length, and intersects many major roads, including US 46, which takes travelers to Interstate 80 (I-80) west for commuting out of the city-area, Garden State Parkway and Route 21 in Clifton, Route 17 and the Western Spur of the New Jersey Turnpike (I-95) in East Rutherford, the Eastern Spur of the New Jersey Turnpike in Secaucus, and Route 495 in North Bergen, for traffic going to the Lincoln Tunnel into New York City. Route 3 serves as the main artery to the Lincoln Tunnel from I-80, in conjunction with a portion of US 46 and Route 495. Portions of the route are not up to interstate highway or freeway standards; with businesses, bus stops, and narrow lanes. Despite this, many construction projects over the years have been underway to alleviate this issue. Route 3 also provided access to Hoffmann La Roche's former American headquarters in Nutley, the Meadowlands Sports Complex and American Dream Meadowlands in East Rutherford. The road inspired a story in The New Yorker in 2004 by Ian Frazier due to its views of the Manhattan skyline. Route 3 was originally the Lincoln Tunnel Approach and ended at the state line in the Hudson River, though it was scaled back following the construction of I-495; which is now Route 495 due to also not meeting interstate highway standards.
Route 4 is a state highway in Bergen County and Passaic County, New Jersey, United States. The highway stretches 10.83 mi (17.43 km) from Route 20 in Paterson east to an interchange with Interstate 95 (I-95), U.S. Route 1/9 (US 1/9), US 46, and US 9W at the George Washington Bridge approach in Fort Lee.
Route 20, known locally as McLean Boulevard, is a state highway that runs 4.15 miles (6.68 km) in New Jersey, United States. It runs along the east side of Paterson, Passaic County, following the west bank of the Passaic River between U.S. Route 46 and River Street, at which point County Route 504 begins. It is a four- to six-lane divided highway for most of its length that runs through residential and commercial areas of Paterson, intersecting with Interstate 80 and Route 4 at interchanges. The northernmost part of the route is a county-maintained one-way pair that follows 1st and 2nd Avenues.
Route 7 is a state highway in the northern part of New Jersey in the United States. It has two sections, an east–west alignment running from U.S. Route 1/9 Truck in Jersey City to Route 21 in Belleville, and a north–south alignment running from the Newark/Belleville to the Nutley/Clifton border. The New Jersey Department of Transportation (NJDOT) lists Route 7 as a single north–south highway with a small gap between the alignments. The entire highway has a combined length of 9.46 mi (15.22 km).
Route 17 is a state highway in Bergen County, New Jersey, United States, that provides a major route from the George Washington Bridge, Lincoln Tunnel and other northeast New Jersey points to the New York State Thruway at Suffern, New York. It runs 27.20 mi (43.77 km) from an intersection with Route 7 and County Route 507 (CR 507) in North Arlington north to the New York border along Interstate 287 (I-287) in Mahwah, where New York State Route 17 (NY 17) continues into New York. Between Route 7 and Route 3 in Rutherford, Route 17 serves as a local road. From Route 3 north to the junction with U.S. Route 46 (US 46) in Hasbrouck Heights, the road is a suburban arterial with jughandles. The portion of Route 17 from US 46 to I-287 near the state line in Mahwah is a limited-access road with all cross traffic handled by interchanges, and many driveways and side streets accessed from right-in/right-out ramps from the right lane. For three miles (5 km) north of Route 4, well over a hundred retail stores and several large shopping malls line the route in the borough of Paramus. The remainder of this portion of Route 17 features lighter suburban development. The northernmost portion of Route 17 in Mahwah runs concurrently with I-287 to the New York border.
Route 23 is a state highway in the northern part of New Jersey in the United States. The route runs 52.63 mi (84.70 km) from County Route 506 and County Route 577 in Verona, Essex County northwest to the border with New York at Montague Township in Sussex County, where the road continues to Port Jervis, New York as Orange County Route 15. Route 23 heads through Essex and Passaic Counties as a suburban arterial varying from two to four lanes and becomes a six-lane freeway north of a complex interchange with U.S. Route 46 and Interstate 80 in Wayne. The freeway carries Route 23 north to a concurrency with U.S. Route 202. Past the freeway portion, the route heads northwest along the border of Morris and Passaic Counties as a four- to six-lane divided highway with a wide median at places, winding through mountainous areas and crossing Interstate 287 in Riverdale. The route continues northwest through Sussex County as a mostly two-lane, undivided road that passes through farmland and woodland as well as the communities of Franklin, Hamburg, and Sussex before reaching the New York state line, just south of an interchange with Interstate 84 and US 6 in Port Jervis, in Montague Township near High Point State Park.
Route 24 is a 10.42-mile (16.77 km) state highway in New Jersey, United States, that begins at a junction with Interstate 287 (I-287) in Hanover Township in Morris County, passes southeast through Essex County, and ends at a junction with I-78 in Springfield Township in Union County. The route is a four- to six-lane freeway for its entire length.
Route 62 is a 0.47-mile-long (0.76 km) state highway in the U.S. state of New Jersey. It begins at the centerline of U.S. Route 46 (US 46) along Union Boulevard in the community of Totowa and continues northward to the merge of the Interstate 80 (I-80) westbound off-ramp at Exit 55B, where Route 62 ends. The route continues as Passaic County Route 646 in both directions, heading northbound to Paterson and southbound to Little Falls.
Route 124 is a state highway in the northern part of New Jersey in the United States that is 14.74 mi (23.72 km) long. It is the eastern section of what used to be Route 24 before that road was realigned to its current freeway alignment. The western end is at an intersection with U.S. Route 202 (US 202) and County Route 510 (CR 510) in Morristown, Morris County; the eastern end continues as CR 603 on Springfield Avenue at the border between Maplewood and Irvington in Essex County. The route runs through suburban areas of Morris County, passing through Madison and Chatham. It interchanges with Route 24 on the border of Millburn, Essex County and Summit, Union County and serves as a frontage road for that route. Upon splitting from Route 24, Route 124 continues east through Springfield Township, Union Township, and Maplewood to its eastern terminus.
U.S. Route 46 (US 46) is an east–west U.S. Highway completely within the state of New Jersey, running for 75.34 mi (121.25 km), making it the shortest signed, non-spur U.S. Highway. The west end is at an interchange with Interstate 80 (I-80) and Route 94 in Columbia, Warren County, on the Delaware River. The east end is in the middle of the George Washington Bridge over the Hudson River in Fort Lee, Bergen County, while the route is concurrent with I-95 and US 1-9. Throughout much of its length, US 46 is closely paralleled by I-80. US 46 is a major local and suburban route, with some sections built to or near freeway standards and many other sections arterials with jughandles. The route runs through several communities in the northern part of New Jersey, including Hackettstown, Netcong, Dover, Parsippany-Troy Hills, Wayne, Clifton, Ridgefield Park, Palisades Park, and Fort Lee. It crosses over the Upper Passaic River at several points. The road has been ceremonially named the United Spanish–American War Veterans Memorial Highway.
Route 440 is a state highway in New Jersey, United States. It comprises two segments, a 5.15-mile (8.29 km) freeway in Middlesex County linking Interstate 287 (I-287) and the New Jersey Turnpike (I-95), in Edison to the Outerbridge Crossing in Perth Amboy and a 8.18-mile (13.16 km) four-lane divided highway in Hudson County running from the Bayonne Bridge in Bayonne to U.S. Route 1/9 Truck in Jersey City. These two segments are connected by New York State Route 440 (NY 440), which runs across Staten Island. The freeway portion in Middlesex County is six lanes wide and interchanges with the Garden State Parkway and US 9 in Woodbridge.
Interstate 280 (I-280) is a 17.85-mile (28.73 km) Interstate Highway in the US state of New Jersey. It provides a spur from I-80 in Parsippany–Troy Hills, Morris County, east to Newark and I-95 in Kearny, Hudson County. In Kearny, access is provided toward the Holland Tunnel and Lincoln Tunnel to New York City. The western part of the route runs through suburban areas of Morris and Essex counties, crossing the Watchung Mountains. Upon reaching The Oranges, the setting becomes more urbanized and I-280 runs along a depressed alignment before ascending again in Newark. I-280 includes a vertical-lift bridge, the William A. Stickel Memorial Bridge, over the Passaic River between Newark and East Newark/Harrison. The highway is sometimes called the Essex Freeway. I-280 interchanges with several roads, including the Garden State Parkway in East Orange and Route 21 in Newark.
Route 158 was a short state highway in Newark and Harrison, New Jersey, in the counties of Essex and Hudson, which are located in the United States. The Centre Street Bridge was first constructed in 1834 as a single-level railroad bridge. However, in 1911, almost eight decades later, a second, upper level was constructed for rapid transit. In 1937, the Hudson and Manhattan Railroad, now part of the Port Authority Trans-Hudson line, was realigned onto railroad tracks along New Jersey Route 21. The upper level of the bridge was abandoned for this purpose, and was later converted to roadway. At the western end in Newark it ran just south of Park Place, beginning at Center Street. The route headed eastward, crossing over Route 21 and the Passaic River before entering Harrison, where it terminated at Second Street north of New Jersey Railroad Avenue.
Skyline Drive is a 5.84-mile-long (9.40 km) road in Northern New Jersey, between Interstate 287 (I-287) in Oakland, Bergen County and County Route 511 (CR 511) in Ringwood, Passaic County, passing through Ringwood State Park in the Ramapo Mountains. It is a major route for those in the Ringwood and Wanaque area to get to Interstate 287. The road is also known as County Route S91 in Bergen County and County Route 692 in Passaic County. County Route S91 continues south for 0.73 miles from the southern terminus of Skyline Drive on West Oakland Avenue to U.S. Route 202 (US 202).
Route 75 was a proposed freeway in the U.S. State of New Jersey in the Newark area in the 1960s and 1970s. It was designed to connect the existing Route 21 freeway north of Newark with Interstate 78 (I-78), U.S. Route 1-9 (US 1–9), and Newark Airport. The state of New Jersey applied for interstate status for the route in 1970, but construction of the road remained stalled in courts throughout the 1970s. In 1973, the state of New Jersey and the Federal Highway Administration shelved plans for the route in April 1972, and in 1997, the state of New Jersey officially removed the route from its route logs. Despite its removal, vestiges of Route 75 still remain. The first example is Exit 13 on Interstate 280 eastbound in Newark. The exit is an enormous three lane ramp, while through traffic on I-280 has only two lanes. The ramp comes to a stop at a traffic light on First Street, just south of Orange Street. Also, at Exit 56 off Interstate 78, large flyover ramps meant for a freeway diverge from the roadway, but terminate at city streets.
County Route 508 is a county highway in the U.S. state of New Jersey. The highway extends 16.14 miles (25.97 km) from Mount Pleasant Avenue in Livingston to Belleville Turnpike in Kearny.
U.S. Route 1 is a United States highway which parallels the East Coast of the United States, running from Key West, Florida in the south to Fort Kent, Maine at the Canadian border in the north. Of the entire length of the route, 66.06 miles (106.31 km) of it runs through New Jersey. It enters the state from Pennsylvania on the Trenton–Morrisville Toll Bridge over the Delaware River in the state capital of Trenton, running through the city on the Trenton Freeway. From here, US 1 continues northeast as a surface divided highway through suburban areas continuing into Middlesex County and passing through New Brunswick and Edison. US 1 merges with US 9 in Woodbridge, and the two routes continue through northern New Jersey as US 1/9 to the George Washington Bridge over the Hudson River in Fort Lee. At this point, the road continues into New York City along with I-95.
U.S. Route 1/9 is the 31.01-mile (49.91 km) long concurrency of US 1 and US 9 from their junction in Woodbridge Township in Middlesex County, New Jersey, north to New York City. The route is a multilane road with some freeway portions that runs through urbanized areas of Northern New Jersey adjacent to New York City. Throughout most of its length in New Jersey, the road runs near the New Jersey Turnpike/Interstate 95 (I-95). In Fort Lee, US 1/9 merges onto I-95 and crosses the Hudson River on the George Washington Bridge, where the two U.S. routes split a short distance into New York. US 1/9 intersects several major roads, including I-278 in Linden, Route 81 in Elizabeth, I-78 and US 22 in Newark, Route 139 in Jersey City, Route 3 and Route 495 in North Bergen, and US 46 in Palisades Park. Between Newark and Jersey City, US 1/9 runs along the Pulaski Skyway. Trucks are banned from this section of road and must use US 1/9 Truck. The concurrency between US 1 and US 9 is commonly referred to as "1 and 9". Some signage for the concurrency, as well as the truck route, combines the two roads into one shield, separated by a hyphen (1-9) or an ampersand (1&9).
U.S. Route 22 is a U.S. highway stretching from Cincinnati, Ohio in the west to Newark, New Jersey in the east. In New Jersey, the route runs for 60.53 mi (97.41 km) from the Easton–Phillipsburg Toll Bridge over the Delaware River in Phillipsburg, Warren County to Interstate 78 (I-78), US 1/9, and Route 21 at the Newark Airport Interchange in Newark, Essex County. The road first heads through the Phillipsburg-Alpha area as a surface divided highway before running concurrent with I-78 through mountainous and agricultural sections of western New Jersey between Alpha and east of Clinton in Hunterdon County. For the remainder of the route, US 22 runs to the south of I-78 through mostly suburban areas as a four- to six-lane surface divided highway, passing through Hunterdon, Somerset, Union, and Essex counties. Along this portion, it intersects US 202 and US 206 in Somerville, I-287 in Bridgewater Township, and the Garden State Parkway in Union.
Route 21 in Newark
CR 508 in Harrison 
