Interstate 287 Descriptions
2024-11-27
Roadnow
North
New York:
New Jersey Middlesex County
I-287 begins at an interchange with the New Jersey Turnpike (I-95) in Edison in Middlesex County, New Jersey, where the freeway continues east as Route 440 towards Perth Amboy and Staten Island. Within Middlesex County, I-287 is called the Lt. Col. (Ret) Richard F. Lauer, US Army Highway. From this point, it heads west as an eight-lane freeway through suburban areas, soon reaching an interchange with US 1 that also has access to CR 531 in the southbound direction. Past this point, the road turns more to the northwest as it comes to the junction with Route 27 (Lincoln Highway). Following Route 27, I-287 narrows to six lanes and passes over Amtrak's Northeast Corridor as it continues to a southbound exit and northbound entrance with CR 501.
As the freeway continues into South Plainfield, it passes near several business parks and comes to a partial interchange with Durham Avenue which only has a northbound exit and southbound entrance At this point, the road starts to turn more west before it comes to a full junction with CR 529. Here, the road enters Piscataway Township and reaches an interchange with CR 665 (Washington Avenue). Continuing near more business parks, I-287 comes to the exit for South Randolphville Road. Following this interchange, the road heads west more before it turns to the southwest and comes to the Possumtown Road interchange. After Possumtown Road, the freeway comes to the CR 622 (River Road) exit.
Somerset County
After crossing over the Raritan River, I-287 enters Franklin Township, Somerset County and becomes the Captain (Ret) Joseph Azzolina, US Navy Highway. Soon after the river, there is an interchange with CR 527. After CR 527, the freeway makes a turn to the northwest and passes a mix of residential areas and business parks. The road has an interchange with CR 623 (Weston Canal Road) before crossing the Raritan River again and continuing into Bridgewater Township. Within Bridgewater Township, I-287 curves north-northwest and passes over both New Jersey Transit's Raritan Valley Line and CR 533 near TD Bank Ballpark, which is home to the Somerset Patriots baseball team. Past this area, the road encounters Route 28 at an interchange. Past Route 28, the freeway turns northwest and intersects US 22 at a partial interchange with a northbound exit and entrance and southbound entrance. From this point, I-287 makes a turn to the west and runs to the north of US 22 as it has a wide median. The freeway turns northwest as it passes near the Bridgewater Commons shopping mall and reaches a partial interchange with US 202/US 206. Through the remainder of New Jersey, US 202 will parallel the course of I-287. At this point, I-287 gains a local-express lane configuration, with 3 local and 2 express lanes southbound and 3 express and 3 local lanes northbound. Both the southbound local and express lanes have access to southbound US 202/US 206 at this interchange, whereas northbound US 202/US 206 only has access to the local lanes of northbound I-287.
From here, the road continues north past suburban residential areas, with the northbound direction narrowing to 2 local lanes, before entering Bedminster Township. Here, I-287 intersects I-78 at the Vincent R. Kramer Interchange, where the local-express lane configuration ends. Access from eastbound I-78 to southbound I-287 is only to the local lanes. Meanwhile, the express lanes of northbound I-287 provides access to westbound I-78 while the local lanes provide access to eastbound I-78. Following I-78, I-287 heads north with four northbound lanes and three southbound lanes into more wooded surroundings, reaching another interchange with US 202/US 206. At this point, the freeway median widens again as it turns northeast before continuing more to the east and entering Far Hills. Within Far Hills, the road passes under CR 512 before the northbound direction narrows to three lanes and the wide median ends. Entering Bernards Township, I-287 runs east-northeast to an interchange with CR 525. After the CR 525 interchange, the road gains a wide median that narrows again before the road runs under New Jersey Transit's Gladstone Branch, heading more to the northeast. Before leaving Bernards Township, there is an exit for North Maple Avenue.
Morris County
A short distance after this interchange, I-287 enters Harding Township, Morris County at the crossing of the Passaic River, where it becomes the Marine Hector Cafferata Jr. Cong. Medal of Honor Highway. It continues northeast, with US 202 running a short distance to the west. The freeway makes a turn more to the east as it comes to a truck-only rest area in the northbound direction. The road crosses into Morris Township, where it reaches an exit-only interchange with Harter Road; there are no entrances present. Shortly after Harter Road, there is a junction with CR 663 (James Street) that only has entrances to I-287. After this, I-287 turns north and enters Morristown, where the northbound direction gains a fourth lane as the median narrows. The freeway enters more developed areas as it comes to the Route 124 interchange. From this point, the road becomes eight lanes total, with four in each direction, as it passes west of Morristown Memorial Hospital. After crossing under New Jersey Transit's Morristown Line, it reaches the exit for CR 510. From CR 510, I-287 makes a turn to the northeast, crossing back into Morris Township before continuing into Hanover Township. Here, the route comes to the western terminus of the Route 24 freeway. Following Route 24, the freeway intersects Route 10. I-287 passes near several business parks as it enters Parsippany-Troy Hills. In this area, there is an interchange with CR 511 east of Lake Parsippany that also has access to Entin Road in the southbound direction. After this, I-287 widens to ten lanes with five northbound lanes, two express southbound lanes, and three local southbound lanes as it comes to the I-80 junction.
Following this interchange, the freeway becomes six lanes, with three in each direction as it continues into more wooded areas and reaching an exit with access to US 46 and US 202/CR 511. In this area, the highway runs to the west of the Jersey City Reservoir and immediately to the east of US 202/CR 511. I-287 comes to the Intervale Road exit, which carries US 202 and CR 511. The freeway enters Boonton, where it turns northeast, with New Jersey Transit's Montclair-Boonton Line located a short distance to the northwest. In Boonton, there is another interchange with US 202/CR 511. From here, I-287 curves more to the east, with US 202 running immediately to the north of the road. Along this stretch, there is an exit for US 202 and Vreeland Avenue. Upon entering Montville, the freeway draws away from US 202 as it passes near wooded residential areas before coming to another interchange with US 202. I-287 continues northeast from this point, crossing under New Jersey Transit's Montclair-Boonton Line before running north-northeast through more woodland as the terrain starts to get more mountainous. The freeway runs through Kinnelon , where the northbound direction has four lanes, and Pequannock Township before entering Riverdale. In Riverdale, there is an interchange with Route 23. A short distance later, I-287 reaches the CR 694 interchange which provides access to CR 511 Alternate.
Passaic and Bergen counties
Immediately after this, I-287 crosses the Pequannock River into Bloomingdale, Passaic County, where the highway becomes US Air Force Gunner Clarence "Red" Mosley Highway. The road continues northeast and turns north as it briefly passes through Pompton Lakes before crossing into Wanaque. Here, the road makes a turn northeast again as it comes to the CR 511 Alternate interchange. After this, I-287 passes through rock cuts in the Ramapo Mountains before making a sharp turn east as it crosses high above the Wanaque River valley on a bridge. The freeway continues into Oakland, Bergen County, where the name becomes Army Staff Sergeant Walter Bray Highway.
Here, there are a couple of businesses near the road before the interchange with Skyline Drive. Following this, the road crosses the Ramapo River before passing near neighborhoods and reaching a junction with US 202. After US 202, I-287 turns southeast and closely parallels the New York, Susquehanna and Western Railway line to the southwest before entering Franklin Lakes and coming to an interchange with the northern terminus of Route 208. Past this interchange, I-287 narrows to four lanes and turns northeast as the railroad line draws away. The freeway passes wooded residential neighborhoods prior to turning north and entering Mahwah Township, where it continues near more wooded suburban areas as well as the Campgaw Mountain Reservation to the west of the road. After passing to the east of the Ramapo College of New Jersey campus, I-287 passes over US 202. The freeway crosses the Ramapo River again before reaching an interchange with Route 17. At this point, Route 17 forms a concurrency with I-287 and the road widens to six lanes as it passes between the Ramapo Mountain Reservation to the west and business parks to the east.
New York New York State ThruwayMain article: New York State Thruway
Upon entering New York in the Village of Suffern in the Town of Ramapo in Rockland County, New York, New Jersey's Route 17 ends and NY 17 follows I-287 as the road comes to an interchange with the New York State Thruway (I-87). At this point, I-287 joins I-87 on the eight-lane New York State Thruway, passing over Metro-North Railroad's Port Jervis Line as it heads east out of the mountains into suburban residential and commercial surroundings as it narrows to six lanes. After passing through the Village of Montebello, the freeway reaches an interchange with Airmont Road where it becomes the border between Montebello to the north and the Village of Airmont to the south. Continuing to the east, the New York State Thruway becomes the border between Monsey and Airmont before separating Monsey from the Village of Chestnut Ridge to the south as it turns slightly to the east-southeast. After briefly running along the south edge of the Village of Spring Valley, where there is a westbound toll plaza for trucks, the highway fully enters Chestnut Ridge. In this area, it comes to the New York extension of the Garden State Parkway. Following this junction, I-87/I-287 continues east into the Town of Clarkstown, coming to an exit for NY 59. After this, the road passes to the north of Nanuet, crossing under New Jersey Transit/Metro-North Railroad's Pascack Valley Line. The freeway crosses under NY 304 before the cloverleaf interchange with the Palisades Interstate Parkway. As the Thruway continues into West Nyack, it comes to the exit for NY 303 that provides access to the Palisades Center shopping mall to the south of the road.
Past NY 303, I-87/I-287 turns to the east-southeast and passes near wooded areas as well as suburban neighborhoods of Central Nyack. It comes to another interchange with NY 59 that also provides access to US 9W. At this point, the New York State Thruway widens to eight lanes and turns to the south-southeast into the Village of Nyack in the Town of Orangetown, crossing over US 9W prior to passing near residential areas in the Village of South Nyack as it runs to the east of US 9W, descending The Palisades. The last interchange in Rockland County is with US 9W and has no southbound exit. From here, the New York State Thruway crosses the Hudson River on the Tappan Zee Bridge east into the Village of Tarrytown in the Town of Greenburgh in Westchester County. After passing over the river, the road crosses over Metro-North Railroad's Hudson Line before coming to an eastbound toll plaza. After this, the freeway comes to the exit for US 9 that also serves the western terminus of NY 119. I-87/I-287 continue east past woodland and business parks, leaving Tarrytown before coming to an interchange where the two routes split, with I-87 continuing south on the New York State Thruway and I-287 heading east on the Cross-Westchester Expressway. This interchange also has access to and from the northbound Saw Mill River Parkway and NY 119.
Cross-Westchester Expressway
The Cross-Westchester Expressway, which is maintained by the New York State Thruway Authority, is six lanes wide and carries I-287 east to a westbound exit for NY 119 that is intertwined with the ramps between the New York State Thruway and NY 119/Saw Mill River Parkway. After passing over the Saw Mill River Parkway and the Saw Mill River, the road enters the Village of Elmsford and runs through developed areas as it has a partial diamond interchange with NY 9A that does not have an eastbound exit. The Cross-Westchester Expressway turns southeast from this point and intersects the Sprain Brook Parkway. I-287 widens to eight lanes at this junction and continues to the exit for NY 100A. After the NY 100A interchange, the freeway leaves Elmsford and turns to the east near residential areas, narrowing to six lanes before coming to an exit only for NY 100 and NY 119 that also has access to the Bronx River Parkway.
Following this exit, the road becomes eight lanes again and crosses over the Bronx River Parkway, the Bronx River, and Metro-North Railroad's Harlem Line. Here, the road crosses into White Plains and reaches an interchange with NY 22. Past NY 22, I-287 makes a sharp curve to the south as it narrows to six lanes and runs near inhabited neighborhoods. The road has a westbound exit and eastbound entrance with the Central Westchester Parkway, a road that provides access to the Taconic State Parkway by way of NY 22. The freeway runs past commercial areas to the east of downtown White Plains as it encounters Westchester Avenue, which connects to NY 119, NY 127, and Anderson Hill Road as well as The Westchester shopping mall in the downtown area. Within this interchange, the Cross-Westchester Expressway turns east along the border between Harrison to the north and White Plains to the south. Westchester Avenue becomes a frontage road for I-287 as the road passes corporate parks to the north and populated neighborhoods to the south.
The road begins to turn southeast as it comes to a directional interchange with the southern terminus of I-684. The I-287 freeway heads south along the White Plains/Harrison border before turning east and fully entering Harrison, where there is a cloverleaf interchange with the Hutchinson River Parkway. At this interchange, the Westchester Avenue frontage road serves as a collector/distributor road. The Cross-Westchester Expressway turns southeast again past wooded areas of development, with NY 120 coming onto the Westchester Avenue frontage road. I-287 reaches an interchange where the frontage road ends as Westchester Avenue heads east as NY 120A and NY 120 continues to the south. Here, the freeway enters the Village of Rye Brook in the Town of Rye as it continues southeast. The Cross-Westchester Expressway comes into the Village of Port Chester, where the road runs near more dense suburban development as it intersects US 1. At this point, the road has ramp access to and from the southbound direction of the New England Thruway (I-95). From here, the mainline I-287 narrows to four lanes and enters the City of Rye, where it passes over the Northeast Corridor before merging into northbound I-95 about 500 yards (meters) west of the Connecticut state line. Legally, the New York section of I-287 is defined as Interstate Route Connections 520 and 525 in New York Highway Law § 340-a.
New Jersey Middlesex County
I-287 begins at an interchange with the New Jersey Turnpike (I-95) in Edison in Middlesex County, New Jersey, where the freeway continues east as Route 440 towards Perth Amboy and Staten Island. Within Middlesex County, I-287 is called the Lt. Col. (Ret) Richard F. Lauer, US Army Highway. From this point, it heads west as an eight-lane freeway through suburban areas, soon reaching an interchange with US 1 that also has access to CR 531 in the southbound direction. Past this point, the road turns more to the northwest as it comes to the junction with Route 27 (Lincoln Highway). Following Route 27, I-287 narrows to six lanes and passes over Amtrak's Northeast Corridor as it continues to a southbound exit and northbound entrance with CR 501.
As the freeway continues into South Plainfield, it passes near several business parks and comes to a partial interchange with Durham Avenue which only has a northbound exit and southbound entrance At this point, the road starts to turn more west before it comes to a full junction with CR 529. Here, the road enters Piscataway Township and reaches an interchange with CR 665 (Washington Avenue). Continuing near more business parks, I-287 comes to the exit for South Randolphville Road. Following this interchange, the road heads west more before it turns to the southwest and comes to the Possumtown Road interchange. After Possumtown Road, the freeway comes to the CR 622 (River Road) exit.
Somerset County
After crossing over the Raritan River, I-287 enters Franklin Township, Somerset County and becomes the Captain (Ret) Joseph Azzolina, US Navy Highway. Soon after the river, there is an interchange with CR 527. After CR 527, the freeway makes a turn to the northwest and passes a mix of residential areas and business parks. The road has an interchange with CR 623 (Weston Canal Road) before crossing the Raritan River again and continuing into Bridgewater Township. Within Bridgewater Township, I-287 curves north-northwest and passes over both New Jersey Transit's Raritan Valley Line and CR 533 near TD Bank Ballpark, which is home to the Somerset Patriots baseball team. Past this area, the road encounters Route 28 at an interchange. Past Route 28, the freeway turns northwest and intersects US 22 at a partial interchange with a northbound exit and entrance and southbound entrance. From this point, I-287 makes a turn to the west and runs to the north of US 22 as it has a wide median. The freeway turns northwest as it passes near the Bridgewater Commons shopping mall and reaches a partial interchange with US 202/US 206. Through the remainder of New Jersey, US 202 will parallel the course of I-287. At this point, I-287 gains a local-express lane configuration, with 3 local and 2 express lanes southbound and 3 express and 3 local lanes northbound. Both the southbound local and express lanes have access to southbound US 202/US 206 at this interchange, whereas northbound US 202/US 206 only has access to the local lanes of northbound I-287.
From here, the road continues north past suburban residential areas, with the northbound direction narrowing to 2 local lanes, before entering Bedminster Township. Here, I-287 intersects I-78 at the Vincent R. Kramer Interchange, where the local-express lane configuration ends. Access from eastbound I-78 to southbound I-287 is only to the local lanes. Meanwhile, the express lanes of northbound I-287 provides access to westbound I-78 while the local lanes provide access to eastbound I-78. Following I-78, I-287 heads north with four northbound lanes and three southbound lanes into more wooded surroundings, reaching another interchange with US 202/US 206. At this point, the freeway median widens again as it turns northeast before continuing more to the east and entering Far Hills. Within Far Hills, the road passes under CR 512 before the northbound direction narrows to three lanes and the wide median ends. Entering Bernards Township, I-287 runs east-northeast to an interchange with CR 525. After the CR 525 interchange, the road gains a wide median that narrows again before the road runs under New Jersey Transit's Gladstone Branch, heading more to the northeast. Before leaving Bernards Township, there is an exit for North Maple Avenue.
Morris County
A short distance after this interchange, I-287 enters Harding Township, Morris County at the crossing of the Passaic River, where it becomes the Marine Hector Cafferata Jr. Cong. Medal of Honor Highway. It continues northeast, with US 202 running a short distance to the west. The freeway makes a turn more to the east as it comes to a truck-only rest area in the northbound direction. The road crosses into Morris Township, where it reaches an exit-only interchange with Harter Road; there are no entrances present. Shortly after Harter Road, there is a junction with CR 663 (James Street) that only has entrances to I-287. After this, I-287 turns north and enters Morristown, where the northbound direction gains a fourth lane as the median narrows. The freeway enters more developed areas as it comes to the Route 124 interchange. From this point, the road becomes eight lanes total, with four in each direction, as it passes west of Morristown Memorial Hospital. After crossing under New Jersey Transit's Morristown Line, it reaches the exit for CR 510. From CR 510, I-287 makes a turn to the northeast, crossing back into Morris Township before continuing into Hanover Township. Here, the route comes to the western terminus of the Route 24 freeway. Following Route 24, the freeway intersects Route 10. I-287 passes near several business parks as it enters Parsippany-Troy Hills. In this area, there is an interchange with CR 511 east of Lake Parsippany that also has access to Entin Road in the southbound direction. After this, I-287 widens to ten lanes with five northbound lanes, two express southbound lanes, and three local southbound lanes as it comes to the I-80 junction.
Following this interchange, the freeway becomes six lanes, with three in each direction as it continues into more wooded areas and reaching an exit with access to US 46 and US 202/CR 511. In this area, the highway runs to the west of the Jersey City Reservoir and immediately to the east of US 202/CR 511. I-287 comes to the Intervale Road exit, which carries US 202 and CR 511. The freeway enters Boonton, where it turns northeast, with New Jersey Transit's Montclair-Boonton Line located a short distance to the northwest. In Boonton, there is another interchange with US 202/CR 511. From here, I-287 curves more to the east, with US 202 running immediately to the north of the road. Along this stretch, there is an exit for US 202 and Vreeland Avenue. Upon entering Montville, the freeway draws away from US 202 as it passes near wooded residential areas before coming to another interchange with US 202. I-287 continues northeast from this point, crossing under New Jersey Transit's Montclair-Boonton Line before running north-northeast through more woodland as the terrain starts to get more mountainous. The freeway runs through Kinnelon , where the northbound direction has four lanes, and Pequannock Township before entering Riverdale. In Riverdale, there is an interchange with Route 23. A short distance later, I-287 reaches the CR 694 interchange which provides access to CR 511 Alternate.
Passaic and Bergen counties
Immediately after this, I-287 crosses the Pequannock River into Bloomingdale, Passaic County, where the highway becomes US Air Force Gunner Clarence "Red" Mosley Highway. The road continues northeast and turns north as it briefly passes through Pompton Lakes before crossing into Wanaque. Here, the road makes a turn northeast again as it comes to the CR 511 Alternate interchange. After this, I-287 passes through rock cuts in the Ramapo Mountains before making a sharp turn east as it crosses high above the Wanaque River valley on a bridge. The freeway continues into Oakland, Bergen County, where the name becomes Army Staff Sergeant Walter Bray Highway.
Here, there are a couple of businesses near the road before the interchange with Skyline Drive. Following this, the road crosses the Ramapo River before passing near neighborhoods and reaching a junction with US 202. After US 202, I-287 turns southeast and closely parallels the New York, Susquehanna and Western Railway line to the southwest before entering Franklin Lakes and coming to an interchange with the northern terminus of Route 208. Past this interchange, I-287 narrows to four lanes and turns northeast as the railroad line draws away. The freeway passes wooded residential neighborhoods prior to turning north and entering Mahwah Township, where it continues near more wooded suburban areas as well as the Campgaw Mountain Reservation to the west of the road. After passing to the east of the Ramapo College of New Jersey campus, I-287 passes over US 202. The freeway crosses the Ramapo River again before reaching an interchange with Route 17. At this point, Route 17 forms a concurrency with I-287 and the road widens to six lanes as it passes between the Ramapo Mountain Reservation to the west and business parks to the east.
New York New York State ThruwayMain article: New York State Thruway
Upon entering New York in the Village of Suffern in the Town of Ramapo in Rockland County, New York, New Jersey's Route 17 ends and NY 17 follows I-287 as the road comes to an interchange with the New York State Thruway (I-87). At this point, I-287 joins I-87 on the eight-lane New York State Thruway, passing over Metro-North Railroad's Port Jervis Line as it heads east out of the mountains into suburban residential and commercial surroundings as it narrows to six lanes. After passing through the Village of Montebello, the freeway reaches an interchange with Airmont Road where it becomes the border between Montebello to the north and the Village of Airmont to the south. Continuing to the east, the New York State Thruway becomes the border between Monsey and Airmont before separating Monsey from the Village of Chestnut Ridge to the south as it turns slightly to the east-southeast. After briefly running along the south edge of the Village of Spring Valley, where there is a westbound toll plaza for trucks, the highway fully enters Chestnut Ridge. In this area, it comes to the New York extension of the Garden State Parkway. Following this junction, I-87/I-287 continues east into the Town of Clarkstown, coming to an exit for NY 59. After this, the road passes to the north of Nanuet, crossing under New Jersey Transit/Metro-North Railroad's Pascack Valley Line. The freeway crosses under NY 304 before the cloverleaf interchange with the Palisades Interstate Parkway. As the Thruway continues into West Nyack, it comes to the exit for NY 303 that provides access to the Palisades Center shopping mall to the south of the road.
Past NY 303, I-87/I-287 turns to the east-southeast and passes near wooded areas as well as suburban neighborhoods of Central Nyack. It comes to another interchange with NY 59 that also provides access to US 9W. At this point, the New York State Thruway widens to eight lanes and turns to the south-southeast into the Village of Nyack in the Town of Orangetown, crossing over US 9W prior to passing near residential areas in the Village of South Nyack as it runs to the east of US 9W, descending The Palisades. The last interchange in Rockland County is with US 9W and has no southbound exit. From here, the New York State Thruway crosses the Hudson River on the Tappan Zee Bridge east into the Village of Tarrytown in the Town of Greenburgh in Westchester County. After passing over the river, the road crosses over Metro-North Railroad's Hudson Line before coming to an eastbound toll plaza. After this, the freeway comes to the exit for US 9 that also serves the western terminus of NY 119. I-87/I-287 continue east past woodland and business parks, leaving Tarrytown before coming to an interchange where the two routes split, with I-87 continuing south on the New York State Thruway and I-287 heading east on the Cross-Westchester Expressway. This interchange also has access to and from the northbound Saw Mill River Parkway and NY 119.
Cross-Westchester Expressway
The Cross-Westchester Expressway, which is maintained by the New York State Thruway Authority, is six lanes wide and carries I-287 east to a westbound exit for NY 119 that is intertwined with the ramps between the New York State Thruway and NY 119/Saw Mill River Parkway. After passing over the Saw Mill River Parkway and the Saw Mill River, the road enters the Village of Elmsford and runs through developed areas as it has a partial diamond interchange with NY 9A that does not have an eastbound exit. The Cross-Westchester Expressway turns southeast from this point and intersects the Sprain Brook Parkway. I-287 widens to eight lanes at this junction and continues to the exit for NY 100A. After the NY 100A interchange, the freeway leaves Elmsford and turns to the east near residential areas, narrowing to six lanes before coming to an exit only for NY 100 and NY 119 that also has access to the Bronx River Parkway.
Following this exit, the road becomes eight lanes again and crosses over the Bronx River Parkway, the Bronx River, and Metro-North Railroad's Harlem Line. Here, the road crosses into White Plains and reaches an interchange with NY 22. Past NY 22, I-287 makes a sharp curve to the south as it narrows to six lanes and runs near inhabited neighborhoods. The road has a westbound exit and eastbound entrance with the Central Westchester Parkway, a road that provides access to the Taconic State Parkway by way of NY 22. The freeway runs past commercial areas to the east of downtown White Plains as it encounters Westchester Avenue, which connects to NY 119, NY 127, and Anderson Hill Road as well as The Westchester shopping mall in the downtown area. Within this interchange, the Cross-Westchester Expressway turns east along the border between Harrison to the north and White Plains to the south. Westchester Avenue becomes a frontage road for I-287 as the road passes corporate parks to the north and populated neighborhoods to the south.
The road begins to turn southeast as it comes to a directional interchange with the southern terminus of I-684. The I-287 freeway heads south along the White Plains/Harrison border before turning east and fully entering Harrison, where there is a cloverleaf interchange with the Hutchinson River Parkway. At this interchange, the Westchester Avenue frontage road serves as a collector/distributor road. The Cross-Westchester Expressway turns southeast again past wooded areas of development, with NY 120 coming onto the Westchester Avenue frontage road. I-287 reaches an interchange where the frontage road ends as Westchester Avenue heads east as NY 120A and NY 120 continues to the south. Here, the freeway enters the Village of Rye Brook in the Town of Rye as it continues southeast. The Cross-Westchester Expressway comes into the Village of Port Chester, where the road runs near more dense suburban development as it intersects US 1. At this point, the road has ramp access to and from the southbound direction of the New England Thruway (I-95). From here, the mainline I-287 narrows to four lanes and enters the City of Rye, where it passes over the Northeast Corridor before merging into northbound I-95 about 500 yards (meters) west of the Connecticut state line. Legally, the New York section of I-287 is defined as Interstate Route Connections 520 and 525 in New York Highway Law § 340-a.