Interstate 87
Map of the northeastern United States with I-87 highlighted in red, and associated reference routes in pink
Route information
Maintained byNYSTA andNYSDOT
Length	333.49 mi[1][2] (536.70 km)
Existed	August 14, 1957 (1957-08-14)[3]–present
NHS	Entire route
Restrictions	No explosives on theTappan Zee Bridge
Major junctions
South end	I-278 inPort Morris
Major intersections	I-95 /US 1 inMorris Heights I-287 /NY 119 /Saw Mill River Parkway inElmsford Palisades Parkway inWest Nyack I-287 /Route 17 inSuffern Future I-86 inHarriman I-84 /NY 300 inNewburgh I-787 /US 9W inAlbany I-90 Toll /New York Thruway in Albany US 11 inChamplain US 9 in Champlain
North end	A-15 at theCanadian border in Champlain
Location
Country	United States
State	New York
Counties	Bronx,Westchester,Rockland,Orange,Ulster,Greene,Albany,Saratoga,Warren,Essex,Clinton
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future New York Highways Interstate US State Reference Parkways
←NY 86A →NY 87
←NY 1A NY 1B →NY 1X

Interstate 87 (I-87) is a 333.49-mile-long (536.70 km) north–southInterstate Highway located entirely within the US state ofNew York. I-87 is the main highway that connectsNew York City andMontreal. The highway begins at exit 47 offI-278 in the New York City borough ofthe Bronx, just north of theRobert F. Kennedy Bridge. From there, the route runs northward through theHudson Valley, theCapital District, and the easternmost part of theNorth Country to theCanada–United States border in the town ofChamplain. At its north end, I-87 continues intoQuebec asAutoroute 15 (A-15). I-87 connects with several regionally important roads:I-95 in New York City,New York State Route 17 (NY 17; futureI-86) nearHarriman,I-84 nearNewburgh, andI-90 inAlbany. The highway is not contiguous withI-87 inNorth Carolina.

I-87 was assigned in 1957 as part of the establishment of the Interstate Highway System. The portion of I-87 south of Albany follows twocontrolled-access highways that predate the Interstate Highway designation, theMajor Deegan Expressway (locally known as "the Deegan") in New York City and the tolledNew York State Thruway from the New York City line to Albany. North of Albany, I-87 follows theAdirondack Northway, a highway built in stages between 1957 and 1967 (finished just in time to bring Americans to theWorld Exhibition held in Montreal that year). Early proposals for I-87 called for the route to take a more easterly course through the Hudson Valley and extreme southwesternConnecticut between New York City and Newburgh. These plans were scrapped in 1970 when I-87 was realigned onto the Thruway betweenWestchester County and Newburgh.

I-87 makes up most of the major strategic corridor betweenNew York City, the largest metropolitan area in the US, andMontreal, the second-largest metropolitan area in Canada (formerly the largest). TheNew York State Department of Transportation (NYSDOT) considers the route important for commerce, as it connects with numerous highways in the region and serves approximately 80 million people in theMid-Atlantic states,New England, andQuebec. Motorists can connect to multiple highways to travel farther south along I-95 through the Mid-Atlantic states or farther east into New England.^[4]

I-87 and the Major Deegan Expressway begins inthe Bronx at the northern approach to theRobert F. Kennedy Bridge, where it connects to theBruckner Expressway (I-278) at adirectional T interchange. The route heads west from the interchange, paralleling loosely with theHarlem River throughMott Haven. After one mile (1.6 km), the highway makes a turn to the north, mirroring a change in the nearby river's course. It passes byYankee Stadium on its way toHighbridge, where the Deegan connects to theCross Bronx Expressway (I-95 andUS Route 1 [US 1]) at the eastern approach to theAlexander Hamilton Bridge. The Deegan remains in close proximity to the Harlem River until the waterway turns westward atKingsbridge to form the northern edge ofManhattan.^[5] The Major Deegan Expressway is named afterMajor William Francis Deegan.

North of Kingsbridge, the expressway follows a generally northeasterly alignment, passing through the center ofVan Cortlandt Park as it connects toMosholu Parkway andJerome Avenue. Mosholu Parkway also links the Deegan to theHenry Hudson andSaw Mill River parkways, which run parallel to the Major Deegan Expressway through the western Bronx and Manhattan. Past Jerome Avenue, the freeway gains a pair ofservice roads and heads north to theNew York City line, where it becomes theNew York State Thruway as it passes intoWestchester County. The last northbound exit on the Deegan connects to McLean Avenue, located north of the city line inYonkers. The exit 14 ramp leads to the service road in the Bronx but does not meet McLean Avenue until it crosses the county line. Southbound access to McLean Avenue is provided by Thruway exit 1 in Yonkers.^[5]

At the New York City–Yonkers border, I-87's mainline continues onto the New York State Thruway and northward through Yonkers and southernWestchester County. The mile markers and exit numbers reset at city limits where the Major Deegan Expressway becomes the Thruway. The first few exits serve various local streets, with exit 1 serving Hall Place, exit 2 providing access toYonkers Raceway & Empire City Casino and exit 3 serving theCross County Shopping Center. At exit 4, I-87 connects to theCross County Parkway, an east–westparkway providing access to the Saw Mill River,Bronx River, andHutchinson River parkways. The north–south parkways and I-95 run parallel to the Thruway throughSouthern Westchester. The Bronx River parkway leaves to the northeast midway through Yonkers, while the Saw Mill andSprain Brook parkways follow the Thruway out of the city.^[6]

All three highways take generally parallel tracks toElmsford, where I-87 directly intersects the Saw Mill River Parkway at exit 7A. Not far to the north is exit 8, asemi-directional T interchange with I-287 (the Cross Westchester Expressway). I-287 joins the Thruway here, following I-87 west across theHudson River intoRockland County on theTappan Zee Bridge. I-87 and I-287 remainoverlapped for 15 miles (24 km) through the densely populated southern portion of Rockland County, meeting thePalisades Interstate Parkway and theGarden State Parkway Connector, with the latter providing access to theGarden State Parkway in New Jersey. The Thruway continues generally westward toSuffern, where I-87 and I-287 split at a large semi-directional T interchange (exit 15) only about a half mile (0.80 km) from theNew Jersey border. At this point, I-287 heads south into New Jersey while I-87 and the Thruway turn northward into the valley of theRamapo River.^[6]

The Thruway continues north as a six-lane tollway through the river valley towardHarriman, where it encounters theWoodburytoll gantry, the southeastern end of the main line's major closed toll system. The barrier is located on the mainline within exit 16 (NY 17), atrumpet interchange. Along with the mainline barrier in Harriman, a toll gantry exists on the exit 16 ramp midway between the Thruway and NY 17 exit 131 (NY 32). Now a completelytolled highway, the Thruway heads northward as it narrows to four lanes, roughly paralleling the Hudson River to the river's west as it serves the city ofNewburgh, village ofNew Paltz, and city ofKingston, indirectly connecting to the shortI-587 in the latter.^[6]

Past Kingston, the highway goes closer to the river as it parallelsUS 9W through the towns ofSaugerties,Catskill,Coxsackie, andRavena. Just north of Ravena, the Thruway meets the west end of the Berkshire Connector, a spur linking the Thruway mainline to theMassachusetts Turnpike 25 miles (40 km) to the east. The highway continues into the vicinity ofAlbany, where it connects toTroy viaI-787 at exit 23 and intersectsI-90 at exit 24.^[6] The latter of the two junctions is the busiest of the Thruway's exits, serving an estimated 27 million vehicles a year.^[7] I-87 then widens to six lanes and runs across the capital city's residential suburbs for six miles (9.7 km) to exit 24, a complex interchange with I-90. At this point, I-87 leaves the Thruway to access the nearby south end of the toll-free Adirondack Northway, also known simply as the Northway, while I-90 merges in from the east to follow the Thruway towardBuffalo and thenPennsylvania.^[5][6]

Off the Thruway, I-87 and I-90 overlap for a half mile (0.80 km) along I-90's toll-free path through the Albany area. The brief concurrency ends at exit 1 of the Adirondack Northway inGuilderland, a junction also numbered as exit 1 on I-90. The Adirondack Northway and I-87 are still separate routes that share the same path; the Northway itself actually begins not at I-87/I-90 but about one mile (1.6 km) south from its interchange, the Northway reaches its southern terminus at Western Ave (US 20), and then joins with I-87 for the rest of its route. I-87 turns to head north toward the Canada–United States border atChamplain while I-90 continues east toward downtown Albany andRensselaer County.^[5] South of this point, the Northway feeds into a 0.86-mile (1.38 km) expressway spur known locally asFuller Road Alternate,^[2] which links I-87 and I-90 to US 20.^[5] Fuller Road Alternate is designated asNew York State Route 910F (NY 910F), an unsignedreference route, byNYSDOT.^[2] In 2004, NYSDOT ceremonially designated the entire 176-mile (283 km) Northway as the Adirondack Veterans Memorial Highway.^[8]

The Northway, the part of Interstate 87 (I-87) north of the New York State Thruway, was built in segments, which became I-87 as they were completed and linked to the pre-existing route. Construction began in the late 1950s on the portion of the Northway between the Thruway andNY 7 nearLatham, and it was completed in 1960.^[9]

I-87 heads northeast from I-90 as a six-lane freeway with three lanes in each direction. It immediately traverses theAlbany Pine Bush Preserve and passes west ofRensselaer Lake before crossingCSX Transportation'sHudson Subdivision and running parallel to Wolf Road, a business thoroughfare through the town ofColonie. Wolf Road itself begins adjacent to exit 2, acloverleaf interchange withNY 5 (Central Avenue). Heading northbound, the ramp for exit 2E feeds directly into the intersection of NY 5 and Wolf Road, located just west ofColonie Center, one of theCapital District's largest enclosed shopping malls. I-87 continues to run alongside Wolf Road to exit 4, a modifieddiamond interchange servingCounty Route 151 (CR 151, named Albany Shaker Road) andAlbany International Airport. Wolf Road ends south of the exit; however, another section begins north of the junction, carryingNY 155 away from the airport. Prior to the Northway, there was no break in Wolf Road; in essence, exit 4 was built on top of Wolf Road's intersection with Albany Shaker Road. I-87 and NY 155 meet at exit 5, with the latter routed along Watervliet Shaker Road.^[5]

After a brief stretch of housing tracts, I-87 connects toNY 2 andNY 7 at exit 6, asingle-point urban interchange, in a commercialized part ofLatham. NY 7 joins I-87 here, following the freeway for roughly 0.8 miles (1.3 km) to exit 7, the west end of a limited-access highway previously known locally as Alternate Route 7. While NY 7 heads east towardTroy, I-87 continues north past gradually less commercialized areas as it approaches the northern county line. The businesses ultimately give way to stretches of homes and subdivisions as the highway crosses intoSaratoga County by way of theThaddeus Kosciusko Bridge, called by locals "thetwin bridges", spanning theMohawk River.^[5] The northern portion of the Northway through Colonie and Saratoga County is now a heavily traveled commuter route as a six-lane freeway. Since the highway's construction, Saratoga County has become the fastest growing area of the Capital District, and indeed all of upstate New York.^[10]

For its first few miles in Saratoga County, I-87 runs across lightly developed parts of the towns ofHalfmoon andClifton Park. Near exit 9, however, the freeway passes through the commercial center of Clifton Park as it connects toNY 146.Clifton Park Center, one of several shopping plazas at the junction, is situated southwest of the exit. Past exit 9, the commercial development subsides as I-87 traverses another area dominated by housing tracts. Just north of the exit, the freeway passes a rest area for northbound traffic. The freeway continues on, passing to the west of the centers ofRound Lake at exit 11 andMalta at exit 12. The roadway then meetsUS 9 at Exit 13, acloverleaf interchange providing access toSaratoga Spa State Park and downtown Saratoga Springs. I-87 turns slightly to the northeast and begins to loosely parallel the northwestern edge ofSaratoga Lake as it crossesKayaderosseras Creek and entersSaratoga Springs.^[5]

As the route travels the east side of Saratoga Springs, it meetsNY 9P at exit 14. The junction is adjacent to the regionally popularSaratoga Race Course and thus receives heavy traffic during the racing season. A southbound-only entrance ramp exists off Nelson Avenue Extension about one mile (one point six kilometres) south of exit 14, designed to handle traffic exiting the track atSaratoga Race Course and theSaratoga Casino Hotel. The highway continues around the eastern edge of Saratoga Springs to exit 15, where the relatively undeveloped areas east of I-87 are briefly replaced byWilton's commercial district alongNY 50. As I-87 continues northeast through Wilton, it heads across significantly less developed areas, with open fields becoming the most common feature along the road. It continues intoMoreau, connecting toUS 9 and servingMoreau Lake State Park by way of exit 17, a oncecloverleaf interchange being converted to a "Parclo A2"Partial cloverleaf interchange, before crossing the Hudson River and enteringWarren County.^[5]

Between the bridge and exit 18, I-87 passes two rest areas, one for each direction. The road's northward course quickly brings it to the outskirts ofGlens Falls, and as such the highway heads across another swath of residential neighborhoods. Exits 18 and 19 are the main exits for the city, with the latter connecting toNY 254 nearAviation Mall, located on NY 254 just west of the route's junction with US 9. A northwestern turn in the freeway takes I-87 past theGreat Escape amusement park andlodge, both of which are accessed from exit 20 andNY 149. Past exit 20, I-87 runs across increasingly remote areas of Queensbury as the road entersAdirondack Park and heads towardLake George. The freeway closely follows US 9 northwest to the village ofLake George, where I-87 meetsNY 9N via exits 21 and 22. Route 9N veers to the northeast along the shore of Lake George as "Lake Shore Drive", toward the town ofBolton Landing, a popular village on the shore of Lake George with shops and restaurants. Exit 22 is the last exit before the Northway begins traversing approximately 90 miles (140 km) of mostly rural areas where the exits become farther apart. Here, the Northway narrows from six to four lanes, preparing for the more rural areas and rugged terrain that follow.^[5]

North of Lake George, the Northway runs alongside US 9 toWarrensburg, a small town on theSchroon River served by exit 23. The view straight ahead on the northbound side from this interchange acts as an unofficial gateway to the Adirondacks, with tall mountains acting as a backdrop to a straight stretch of highway. While US 9 heads northwest into theWarrensburg to connect toNY 28, I-87 turns northward to follow the east bank of the Schroon River for 17 miles (27 km) through a deep, remote valley. The Northway reaches exit 24 while in this valley, which once again serves the town ofBolton Landing. Exit 25 servesNY 8 at adiamond interchange. The stretch away from US 9 ends at exit 26, where I-87 reconnects to US 9 inPottersville. At this point, I-87 makes a slight turn to the northeast to follow US 9 as the latter road runs along the western shoreline of Schroon Lake. Both roads pass a handful of lakefront properties on their way intoEssex County and the town ofSchroon Lake, where the lake comes to an end andNY 74 begins its eastward trek toTiconderoga at exit 28. The Schroon River resumes north of the exit, and I-87 and US 9 follow the river and its rural valley to the northeast for 15 miles (24 km) to the town ofNorth Hudson.^[5]

In North Hudson, the valley becomes less pronounced as the Schroon River reaches itssource near exit 30. Here, US 9 and I-87 cross paths again, with the former heading northwest towardKeene and the latter continuing northeast in a narrow valley formed by Ash Craft Brook. After five miles (8.0 km), the stream reaches its source at Lincoln Pond, leaving the Northway to climb in elevation and wind its way northeastward across the surrounding mountains. It reaches slightly more level ground inWestport, where I-87 connects to NY 9N at exit 31. From here, the highway takes a generally northerly track across theBoquet River to the town ofLewis, rejoining US 9 as both roads head towardClinton County. They split again after seven miles (11 km) as US 9 veers more easterly than I-87 to serveKeeseville. The Northway, meanwhile, heads to the northwest, bypassing the village to cross theAusable River and enter Clinton County.^[5]

Just across the county line, I-87 intersects NY 9N again at exit 34 inKeeseville, finally leaving the more rural, mountainous areas of theAdirondack Mountains and entering a more populated region. Exit 34 is the southernmost junction to featurebilingual guide signs inEnglish andFrench due to the road's proximity toQuebec. Beyond NY 9N, the Northway curves to the north, running along the west side of Keeseville before entering another rural but fairly level stretch that follows I-87 out of Adirondack Park. Now outside the park, the highway encounters more frequent pockets of development as it followsNY 22 into the town ofPlattsburgh. Just inside the town line, the Northway crosses over the Salmon River and intersects NY 22 at exit 36, a junction serving nearbyPlattsburgh International Airport. While NY 22 heads northeast into the city ofPlattsburgh, I-87 runs north through its western suburbs, passing over theSaranac River and intersectingNY 3 at exit 37. The Northway and NY 22 meet again north of downtown at exit 38.^[5]

The section of I-87 between exits 38 and 39 crosses a marshy area surrounding Dead Creek, a stream feeding into nearbyPlattsburgh Bay. Access to the bay shore is provided off to the northeast by exit 39, a modified cloverleaf interchange forNY 314. Continuing away from the junction, I-87 comes within one mile (1.6 km) ofLake Champlain as it follows US 9 away from Plattsburgh and northward across open, rolling fields in the towns ofBeekmantown andChazy. Outside of the hamlet of Chazy, the Northway begins to run across a series ofwetlands along the west side of US 9. The marshy terrain follows I-87 into the town of Champlain, where I-87 encounters the northernmost community along its course, the village ofChamplain. I-87 veers slightly westward to avoid the village, and in doing so it meetsUS 11 at exit 42, a diamond interchange just west of the village limits.^[5]

I-87 takes a northerly track from US 11, crossing theChazy River and briefly entering the village limits, where it runs past a series of homes and businesses built up along nearby US 9. As both roads head north out of the village, US 9 connects to the Northway one last time (also the northern terminus of US 9) at exit 43, the last interchange on I-87 before the Canadian border. Past the exit, the highway doubles in width, becoming eight lanes wide as it begins to run past the customs facilities on the American side of the border. The Northway and I-87 end shortly thereafter at the Canadian border, where the highway continues past theChamplain–St. Bernard de Lacolle Border Crossing into Quebec asA-15 toward Montreal.^[5]

The origins of the Major Deegan Expressway date back to 1936 when theRegional Plan Association concluded that in order to relieveNew York City's traffic problems, a limited-access, truck-accessible expressway should be built on the west side ofthe Bronx. This route would connect the brand-newTriborough Bridge to the proposedNew York State Thruway inWestchester County. A 1.5-mile (2.4 km) section of the expressway from the bridge to theGrand Concourse was completed in April 1939. The highway was adorned with Whitestone-style light posts placed every 75 feet (23 m) of the six-lane highway, each of which were 12 feet (3.7 m) in width.^[11] The expressway was designated asNew York State Route 1B (NY 1B)c. 1941;[12]^[13][14] however, the designation was removed by 1947.^[15] In 1945, public works plannerRobert Moses proposed extending the highway to the proposed Thruway. Construction on the extension began in 1950, and the new route was opened in 1956.^[11] The Major Deegan Expressway is named forWilliam Francis Deegan, who died in 1932. He was an architect, a major in theArmy Corps of Engineers, and aDemocratic political leader in New York City.^[16]

I-87 was assigned on August 14, 1957, as part of the establishment of the Interstate Highway System.^[3] The highway initially utilized the preexisting New York State Thruway from Albany to Newburgh and in lower Westchester County, and the Major Deegan Expressway in New York City. From Newburgh to the Elmsford area, I-87 was to followa new highway running parallel to US 9 northward along the eastern bank of theHudson River toFishkill. I-87 would then have followed the proposed I-84 across the Hudson to rejoin the Thruway outside of Newburgh. After the Hudson River Expressway proposal was cancelled in the 1960s, the alignment of I-87 was shifted farther east to follow a newly completed freeway in the Route 22 corridor that started at I-287 in White Plains, then cut north through the extreme southwest corner ofConnecticut before reentering New York and reaching I-84 at Brewster. I-87 then followed I-84 west to Newburgh. In 1970, the I-87 designation was shifted to the New York State Thruway between Newburgh and the Deegan Expressway; its previous alignment between Brewster and White Plains was redesignated asI-684. Meanwhile, all of the Adirondack Northway, the portion of I-87 slated to extend from Albany north to the Canada–United States border, had yet to be built.^[17][18] Fuller Road Alternate, the spur leading south from the Adirondack Northway toUS 20, was originally intended to be part of the Southern Albany Expressway, a proposed highway which would have connected the Northway withI-787 and run parallel to the Thruway between exits 23 and 24.^[19]

Map of NY 912Q, once part of I-87

The Northway was built in segments, which became I-87 as they were completed and linked to the preexisting route. Construction began in the late 1950s on the portion of the Northway between the Thruway andNY 7 nearLatham.^[20] This segment was open to traffic by 1960, by which time work had begun on two additional segments from Latham toMalta (atNY 67) and from US 9 in northern Saratoga County to US 9 andNY 149 midway betweenGlens Falls and Lake George village.^[18] The expressway was completed between Latham andClifton Park (NY 146) and from US 9 south of Glens Falls to the Hudson Riverc. 1961.[21] The US 9–NY 149 section of the highway was finished on May 26, 1961, at a total cost of $9.5 million (equivalent to $76.1 million in 2024^[22]).^[23] Work on the Latham–Malta segment concluded on November 22 of that year with the opening of a $6.6-million (equivalent to $52.9 million in 2024^[22]) piece between NY 146 and NY 67.^[24] When the Latham–Malta segment was opened, it featured one of the few railroad grade crossings on an Interstate Highway, just south of the Thaddeus Kosciusko Bridge over the Mohawk River. This at-grade crossing was removed within a couple of years when the railroad line was cut backward and the crossing was no longer needed.^[25] Construction on the portion of highway between the two segments beganc. 1962.^[21][26] The 1.8-mile (2.9 km) part betweenNY 9P andNY 50 nearSaratoga Springs was finished on July 19, 1963,^[27] and the entire NY 67–US 9 segment was completed by 1964.^[28] An extension linking NY 149 to NY 9N south of Lake George village opened in mid-1963.^[27]

By July 1963, the Northway was completed from the Canada–United States border south to exit 34 atKeeseville.^[27] Additionally, the existing Albany–Lake George section was extended slightly by May 1966 to serve the northern part of Lake George. At the time, I-87 curved around the western outskirts of the village to end at NY 9N north of the village^[29] on a highway builtc. 1964.^[30] In mid-1966, the state opened a $23-million (equivalent to $169 million in 2024^[22]) section of the Northway between Lake George and exit 26 atPottersville.^[31] I-87 was reconfigured slightly near Lake George as a result: instead of heading east to NY 9N, it continued north on a parallel routing to US 9.^[32] The Northway's former routing to NY 9N, known infrequently today as the Lake George Connector, is now NY 912Q, an unsignedreference route 0.66 miles (1.06 km) in length. NY 912Q has one intermediate interchange with US 9.^[2] On March 5, 1967, the Lake George–Pottersville portion of I-87 was chosen as America's Most Scenic New Highway of 1966 byParade. It became the second New York highway to win the award, as a stretch ofNY 17 inBroome andDelaware counties was selected for the title in 1964.^[31]

The gap in the Northway between Pottersville and Keeseville was narrowed considerably by July 1967 with the completion of a 25-mile (40 km) segment from Pottersville to exit 30 at Underwood. It was closed further on July 25, 1967, with the opening of a three-mile (4.8 km) stretch near Keeseville between exits 34 and 33.^[33] The last section of the Northway to be built, a 30-mile (48 km) stretch between Underwood and Keeseville (exit 33), was finished on August 31, 1967.^[34] The completion of the Northway linked New York City with Montreal by way of a direct, limited-access highway, with I-87 becomingA-15 at the Canada–United States border.^[35] The total cost to build the Adirondack Northway was $208 million (equivalent to $1.49 billion in 2024^[22]).^[34]

Another gap in I-87 existed in downstate New York, as the plan to build I-87 along the proposed Hudson River Expressway had been scrapped by 1962. Instead, I-87 was now proposed to begin inPort Chester and follow a new routing throughPurchase,Armonk, andKatonah toBrewster, where it would join I-84.^[36] The routing was modified slightly by 1968: I-87 still began in New York City, thenoverlapped withI-287 east to Purchase. From there, I-87 headed north along the now-open expressway to Armonk, where it ended atNY 22. Another portion of the highway, from Goldens Bridge (NY 138) to Brewster, was open as well while the part from Armonk to Katonah was under construction.^[32] This segment, as well as the part from Katonah to Goldens Bridge, was completed by 1971.^[37] On January 1, 1970, I-87 was rerouted between Elmsford and Newburgh to follow the mainline of the Thruway instead, leaving the Purchase–Brewster freeway to becomeI-684.^[38]

The originalTappan Zee Bridge, carrying the concurrency ofNew York State Thruway, I-87, andI-287, was acantilever bridge built during 1952–55. The bridge was three miles (4.8 km) long and spanned the Hudson at its second-widest point. Before its replacement in 2017, the deteriorating structure carried an average of 138,000 vehicles per day, substantially more traffic than its designed capacity. During its first decade, the bridge carried fewer than 40,000 vehicles per day. Part of the justification for replacing the bridge stems from its construction immediately following theKorean War on a low budget of only $81 million (equivalent to $738 million in 2024^[22]). Unlike other major bridges inNew York metropolitan area, the Tappan Zee was designed to last only 50 years.^[39] TheFederal Highway Administration (FHWA) issued a report in October 2011 designating theTappan Zee's replacement to be a dual-spantwin bridge.^[40]

Construction officially began in October 2013,^[41] with the new spans being built to the north of the existing bridge. The new bridge connects to the existing highway approaches of I-87 and I-287 on both river banks.^[40] The northbound/westbound span opened on August 25, 2017.^[42][43] Southbound/eastbound traffic remained on the old bridge until October 6, 2017. At that point, southbound/eastbound traffic shifted to the westbound span of the new bridge and the old bridge closed.^[44][45] The bridge's eastbound span opened to traffic on September 11, 2018.^[46][47] Upon completion, the new Tappan Zee Bridge became one of the longest cable-stayed spans in the nation.^[48]

In June 2017, the Tappan Zee Bridge was renamed the Governor Mario M. Cuomo Bridge.^[49] The renaming resulted in controversy from the public who wanted to keep the name to honor Tappan Indians and Dutch who previously resided in the area.^[50] In August 2019, some signs for the bridge were replaced because they did not include the governor's middle initial in the name.^[51]

In the wake of formerNew York Yankees playerJoe DiMaggio's death on March 8, 1999, GovernorGeorge Pataki proposed renaming the Deegan Expressway to the "Joe DiMaggio Highway." However, New York City MayorRudy Giuliani favored renaming theWest Side Highway for DiMaggio instead.^[52] Pataki agreed to Giuliani's proposal one week later.^[53]

A long stretch of the Northway through theAdirondack Park had been an unserved zone forcellular telephone service. In 2007, a driver who crashed off the road was unable to summon help, prompting messages from local governments to telephone companies to add new wireless towers to address the problem and warning signs to inform travelers of the so-called "dark zone".^[54] Throughout this area, roadside emergency call boxes were located approximately every two miles (3.2 km) on both sides of the roadway. These boxes used a two-wayultra high frequency radio network to connect directly toNew York State Police dispatchers. In February 2023, the New York State police announced that the call box system was being decommissioned and would be removed complete by Fall 2023.^[55] The first of 13 new cellular phone towers along I-87 was installed in October 2008. A second cellular phone tower was completed just one month later.^[56]

Exit 6 on the Adirondack Northway was originally adiamond interchange.^[57] Construction to convert the junction into asingle-point urban interchange began in mid-2008^[58] and was completed on September 12, 2010.^[59] The total cost of the project was $41.9 million (equivalent to $58.7 million in 2024^[22]).^[58]

Until October 2019, there was no exit 3 on the Northway section of I-87, as this number was reserved for an interchange with the now-canceledI-687.^[60] A project to improve motorist access to theAlbany International Airport at exit 4 took place in the late 2010s. The two old deteriorating bridges at exit 4 which had carried 102,000 vehicles a day were replaced. Once the new replacement bridges were built, the old bridges were demolished. Construction began in February 2015 and was completed on October 31, 2015.^[61]

In August 2018, plans were announced to build a new exit 3 on the Northway, providing more direct access from both directions to Albany International Airport.^[62] The project was completed by Lancaster Development and Tully Construction at a cost of $50 million, with a target completion date of mid-2020.^[63] As part of the interchange, a flyover ramp was constructed over the Northway, allowing northbound and traffic direct access to Albany Shaker Road/NY 155 near the Desmond Hotel Albany. Southbound traffic was able to both exit and enter to/from the connector.^[64][65]

The southbound entrance for the connector (exit 3) opened on September 27, 2019,^[66] while the southbound exit opened the next month.^[67][68] Traffic signals were installed at the intersection of Albany Shaker Road and the connector. The northbound exit opened in November 2019.^[69] Other changes completed as part of the project include:^[67][69]

• Exit 4 on I-87 northbound was changed to a right turn only onto Wolf Road.
• Exit 4 on I-87 southbound was changed to a right turn only onto Old Wolf Road.
• A new direct entrance ramp was built from exit 5 (Watervliet-Shaker Road/NY 155) to I-87 southbound.
• Turn lanes, sidewalks, and medians were added to Albany Shaker Road between the intersections with the flyover ramps and Wolf Road. A new shared use path was built along Albany Shaker Road between the intersections with the flyover ramps and Albany International Airport.
• A new noise wall along I-87 northbound was built between exits 4 and 5.

Afternoon traffic was expected to be reduced by 54 percent, and morning traffic was expected to decrease by 29 percent.^[64] During construction, the project received criticism over the fact that some of the ramps were built on land sacred to threeNative American tribes; theStockbridge–Munsee,St. Regis Mohawk andDelaware. Murals were supposed to be installed on the exit 3 overpass, but the murals had still not been installed after the completion of all work on exit 3 in late 2020.^[70] The murals were finally installed in early 2021.^[71][72]

The mileposts below follow actual signage, even though the route is continuous. For the Bronx section of I-87, mile 0.00 is just north of the Robert F. Kennedy Bridge. For the Thruway section of I-87, mile 0.00 is at the Yonkers–Bronx city line. For the Northway section of I-87, mile 0.00 is just north of the overpass with I-90.^[73][74]

County	Location[74]	mi[74]	km	Exit	Destinations	Notes
The Bronx	Port Morris	0.00	0.00	–	I-278 east (Bruckner Expressway) –New Haven	Southern terminus
		0.27	0.43	–	Bruckner Boulevard / East 135th Street	Northbound entrance only
	Mott Haven	0.30	0.48	–	I-278 Toll west (RFK Bridge) –Manhattan,Queens	Southbound exit and northbound entrance; exit 47 on I-278
		0.40	0.64	1	Brook Avenue	Southbound exit only
		0.56	0.90	2	Willis Avenue toThird Avenue Bridge	No southbound entrance
		0.80– 1.15	1.29– 1.85	3	Grand Concourse / East 138th Street /Madison Avenue Bridge	Signed for Grand Concourse northbound, Madison Avenue Bridge southbound
		1.30	2.09	4	East 149th Street /145th Street Bridge –Yankee Stadium	Northbound exit only; formerNY 22/NY 100
	Highbridge	2.44	3.93	5	East 161st Street /Macombs Dam Bridge –Yankee Stadium
		2.30	3.70	6	East 153rd Street / River Avenue –Yankee Stadium	Southbound exit and entrance
	Morris Heights	3.40	5.47	7	I-95 /US 1 (Cross Bronx Expressway) –New Haven,Trenton	Signed as exits 7N (I-95 north) and 7S (I-95 south); exits 1C and 1D on I-95
	University Heights	4.10	6.60	8	West 179th Street	Northbound exit and entrance
		4.76	7.66	9	West Fordham Road /University Heights Bridge
	Kingsbridge	5.92	9.53	10	West 230th Street
	Van Cortlandt Park	6.88	11.07	11	Van Cortlandt Park South	ToVan Cortlandt Park
		7.21	11.60	12	ToHenry Hudson Parkway south /Saw Mill River Parkway north	Access viaMosholu Parkway; northbound exit and southbound entrance
		7.55– 7.60	12.15– 12.23	13	East 233rd Street
				Van Cortlandt Service Area
		8.20	13.20	14	McLean Avenue	Northbound exit and southbound entrance
Bronx–Westchester county line	Van Cortlandt Park–Yonkers line	8.30 0.00	13.36 0.00	Transition between Major Deegan Expressway andNew York State Thruway
Westchester	Yonkers	0.48	0.77	1	Hall Place / McLean Avenue	No northbound access via McLean Avenue
		0.92	1.48	2	Yonkers Avenue –Raceway	Northbound exit and southbound entrance
		1.77	2.85	3	Mile Square Road	Northbound exit and southbound entrance
		2.18	3.51	4	Cross County Parkway to Mile Square Road	Cloverleaf interchange with Central Park Avenue; no southbound entrance; no northbound access via Mile Square Road
		2.70	4.35	5	NY 100 north (Central Park Avenue) –White Plains	Northbound exit and southbound entrance; southern terminus of NY 100
		4.00	6.44	6	Tuckahoe Road –Bronxville,Yonkers	Signed as exits 6E (Bronxville east) and 6W (Yorkers west) southbound
		5.14	8.27	6A	Ridge Hill Boulevard / Stew Leonard Drive	Last northbound exit before toll
		5.47	8.80	Yonkers Toll Gantry (E-ZPass orToll by Mail)
	Greenburgh	6.10	9.82	Ardsley Service Area (northbound)
	Ardsley	7.58	12.20	7	NY 9A –Ardsley	Northbound exit and southbound entrance
	Greenburgh	10.33	16.62	7A	Saw Mill River Parkway toTaconic State Parkway north	Same-directional access only; no southbound entrance; exit 20 on Saw Mill Parkway; last southbound exit before toll
		11.31– 11.80	18.20– 18.99	8	I-287 east /NY 119 /Saw Mill River Parkway north –White Plains,Rye	Signed as exits 8A (NY 119/Saw Mill) and 8 (I-287) southbound; southern end of I-287 concurrency; exit 22 on Saw Mill Parkway
	Tarrytown	12.65	20.36	9	ToUS 9 –Tarrytown,Sleepy Hollow	Northbound exit and entrance; access viaNY 119
					US 9 /NY 119 east –Tarrytown,Sleepy Hollow	Southbound exit and entrance; NY 119 not signed
Hudson River		12.80– 14.50	20.60– 23.34	Tappan Zee (Governor Mario M. Cuomo) Bridge (southbound toll;E-ZPass orToll by Mail)
Rockland	South Nyack	16.75	26.96	10	US 9W –Nyack,South Nyack	No southbound exit
	Nyack	17.63	28.37	11	US 9W /NY 59 west –Nyack	Northbound exit and entrance; access via High Avenue; NY 59 not signed
					ToUS 9W –Nyack,South Nyack	Southbound exit and entrance; access viaNY 59; last southbound exit before toll
	West Nyack	18.76	30.19	12	NY 303 / Palisades Center Drive –West Nyack	Palisades Center Drive not signed northbound
		20.94	33.70	13	Palisades Parkway –Bear Mountain,New Jersey	Signed as exits 13N (Bear Mountain north) and exit 13S (New Jersey south); exits 9E and 9W on Palisades Parkway
	Nanuet	22.80	36.69	14	NY 59 (CR 35A) –Spring Valley,Nanuet
		23.00	37.01	–	CR 35 (Pascack Road) / Old Turnpike Road	Southbound entrance only
	Chestnut Ridge	23.53	37.87	14A	ToG.S. Parkway south –New Jersey	Access viaG.S. Parkway Connector
		24.31	39.12	Spring Valley Toll Gantry (E-ZPass orToll by Mail; northbound trucks)
	Montebello	27.62	44.45	14B	Airmont Road (CR 89) –Airmont,Montebello	Access toGood Samaritan Regional Medical Center
	Suffern	30.17	48.55	15	I-287 south /Route 17 south –New Jersey NY 17 begins	Northern end of I-287 concurrency; southern end of NY 17 concurrency
	Hillburn	31.35	50.45	15A	NY 17 north /NY 59 east –Sloatsburg,Suffern	Northern end of NY 17 concurrency; western terminus of NY 59; last northbound exit before toll
	Ramapo	32.40	52.14	Tandem Trailer Area
	Sloatsburg	33.20	53.43	Sloatsburg-Ramapo Service Area
Orange	Woodbury	45.00	72.42	16	Future I-86 west toUS 6 /NY 17 –Harriman	Harriman Toll Gantry (E-ZPass orToll by Mail)
				Woodbury Toll Gantry (E-ZPass orToll by Mail)
	Town of Newburgh	60.10	96.72	17	I-84 /NY 300 toNY 17K –Scranton,Newburgh	Exit 36A on I-84
		64.8– 65.9	104.3– 106.1	Plattekill-Modena Service Area
Ulster	Town of New Paltz	76.01	122.33	18	NY 299 –Mid-Hudson Bridge,New Paltz,Poughkeepsie
	Ulster	91.37	147.05	19	NY 28 (I-587 east) –Kingston,Rhinecliff Bridge
		96.30	154.98	Ulster Service Area (southbound)
	Town of Saugerties	101.25	162.95	20	NY 32 /NY 212 –Saugerties,Woodstock	Woodstock not signed northbound; NY 212 not signed
		103.20	166.08	Malden Service Area (northbound)
Greene	Town of Catskill	113.89	183.29	21	ToNY 23 –Catskill,Cairo	Access viaCR 23B
	New Baltimore	124.53	200.41	21B	US 9W toNY 81 –Coxsackie,Ravena
		127.30	204.87	New Baltimore Service Area / Capital Region Welcome Center
Albany	Coeymans	133.60	215.01	21A	ToI-90 /Mass Pike east –Boston	Access viaBerkshire Connector
	Bethlehem	134.93	217.15	22	NY 144 toNY 396 –Selkirk
		139.80	224.99	Toll Gantry (E-ZPass orToll by Mail)
	Albany	141.92	228.40	23	I-787 north /US 9W –Albany,Troy	Southern terminus of I-787; access toMVP Arena andAlbany–Rensselaer station
	Bethlehem	145.60	234.32	Toll Gantry (E-ZPass orToll by Mail)
	Albany	148.15 0.00	238.42 0.00	24	I-90 Toll west /New York Thruway west –Buffalo	Northern end of Thruway concurrency; southern end of I-90 concurrency; exit number not signed southbound
				1	I-90 east toUS 20 (Western Avenue) –Albany,Boston	Access to US 20 viaNY 910F; signed as exits 1S (US 20) & 1E (I-90); northern end of I-90 concurrency; last southbound exit before toll
	Village of Colonie	1.32	2.12	2	NY 5 (Central Avenue) / Wolf Road –Albany,Schenectady	Signed as exits 2E (NY 5 east) and 2W (NY 5 west); Wolf Road not signed southbound
	Town of Colonie	3.00	4.83	3	NY 155 west /CR 151 west / Albany Shaker Road –Albany International Airport	Opened November 2019; northbound entrance via Exit 4; formerly planned forI-687
		3.10	4.99	4	CR 153 (Wolf Road (NY 910B)) /CR 151 east (Albany Shaker Road)	Southbound entrance via Exit 3
		4.21	6.78	5	NY 155 east –Latham
		5.46	8.79	6	NY 7 west /NY 2 east –Schenectady,Watervliet	Southern end of NY 7 concurrency
		6.01	9.67	7	NY 7 east /US 9 /NY 9R toI-787 south –Troy,Cohoes,Latham,Waterford,Albany	Northern end of NY 7 concurrency; US 9, NY 9R and I-787 not signed
Mohawk River		8.24	13.26	Thaddeus Kosciusko Bridge
Saratoga	Halfmoon–Clifton Park line	10.25	16.50	8	Crescent Vischer Ferry Road (CR 92) –Vischer Ferry,Crescent	ToMohawk Towpath Scenic Byway
		11.56	18.60	8A	Grooms Road (CR 91) –Waterford	Waterford not signed northbound; exit opened in 1994[75]
	Clifton Park	13.10	21.08	9	NY 146 –Clifton Park,Halfmoon	Signed as exits 9E (NY 146 east) and 9W (NY 146 west) southbound
		14.20	22.85	Clifton Park Rest Area (northbound)
		16.00	25.75	10	Ushers Road (NY 911T) –Ballston Lake,Jonesville	Ballston Lake not signed southbound
	Round Lake	18.56	29.87	11	Round Lake Road (CR 80) –Burnt Hills,Round Lake
	Malta	20.86	33.57	12	NY 67 –Ballston Spa,Malta
		24.54	39.49	13	US 9 (Broadway) –Saratoga Lake,Ballston Spa,Saratoga Springs	Signed as exit 13S (US 9 south) and exit 13N (US 9 north); access toSaratoga County Airport
	Saratoga Springs	28.56	45.96	14	NY 9P Truck south /NY 9P (Union Avenue) toNY 29 –Saratoga Springs,Schuylerville,Saratoga Lake	NY 29 not signed southbound
	Saratoga Springs–Wilton line	30.35	48.84	15	NY 9P Truck north /NY 29 Truck /NY 50 toNY 29 –Saratoga Springs,Gansevoort,Schuylerville	NY 29 not signed northbound; access toSaratoga Hospital
	Wilton	35.86	57.71	16	Ballard Road (CR 33) –Wilton,Corinth,Gansevoort
	Moreau	40.64	65.40	17	US 9 (Saratoga Road) –South Glens Falls,Moreau Lake State Park	Former cloverleaf signed as exits 17N (US 9 north) and 17S (US 9 south); converted to parclo B2 interchange
Hudson River		42.73	68.77	Bridge
Warren	Queensbury	43.70	70.33	Glens Falls Rest Area /Adirondacks Welcome Center
		45.17	72.69	18	Corinth Road/Main Street (CR 28) –Glens Falls,Corinth	Access toGlens Falls Hospital
		47.52	76.48	19	NY 254 –Glens Falls,Hudson Falls	Hudson Falls not signed northbound; access toFloyd Bennett Memorial Airport
		49.80	80.15	20	US 9 /NY 149 east –Fort Ann,Whitehall	Western terminus of NY 149; US 9 not signed
	Queensbury–Lake George town line	51.23	82.45	Southern boundary ofAdirondack Park
	Town of Lake George	52.98	85.26	21	NY 9N –Lake Luzerne,Lake George	Lake George Village not signed southbound
	Village of Lake George	55.02	88.55	22	ToUS 9 /NY 9N –Lake George,Diamond Point,Bolton Landing	Access viaNY 912Q; Diamond Point not signed southbound
	Town of Lake George	59.45	95.68	23	CR 35 /US 9 toNY 28 –Warrensburg,Diamond Point
	Town of Warrensburg	67.85	109.19	24	CR 10 /CR 11 –Bolton Landing
	Chester	73.22	117.84	25	NY 8 –Chestertown,Hague
		78.00– 78.59	125.53– 126.48	26	US 9 –Pottersville,Minerva
Essex	Schroon	81.99	131.95	27	US 9 –Schroon Lake	Northbound exit and southbound entrance
		88.70	142.75	28	NY 74 east –Ticonderoga,Crown Point	Access toFort Ticonderoga and Ticonderoga-Larrabees Ferry
	North Hudson	94.63	152.29	29	Blue Ridge Road (CR 84) –Newcomb,North Hudson
		99.50	160.13	High Peaks Rest Area
		104.46	168.11	30	US 9 toNY 73 –Keene Valley,Keene,North Hudson
	Westport	117.58	189.23	31	NY 9N –Elizabethtown,Westport	Access to Essex NY-Charlotte VT Ferry
	Lewis	122.90	197.79	Lewis Rest Area
		123.48	198.72	32	Stowersville Road (CR 12) –Lewis,Willsboro	Willsboro not signed southbound
	Chesterfield	134.98	217.23	33	US 9 /NY 22 –Keeseville,Willsboro,Essex	Access to Essex NY-Charlotte VT Ferry
Ausable River		138.34	222.64	Bridge
Clinton	Au Sable	138.74	223.28	34	NY 9N –Au Sable Forks,Keeseville
	Au Sable–Peru town line	142.41	229.19	Northern boundary ofAdirondack Park
	Peru	144.51	232.57	35	NY 442 (Bear Swamp Road) –Peru,Valcour,Port Kent
		146.60	235.93	Valcour Rest Area (northbound)
	Town of Plattsburgh	150.10	241.56	36	NY 22 –Plattsburgh International Airport
		153.06	246.33	37	NY 3 –Plattsburgh,Saranac Lake	Saranac Lake not signed southbound; access toChamplain Valley Physicians Hospital
		154.87	249.24	38	NY 22 /NY 374 –Plattsburgh,Dannemora,Saranac Lake	Signed as exits 38S (NY 22 south) & 38N (NY 22 north)
		156.36	251.64	39E	NY 314 east –Cumberland Head,Plattsburgh Bay	Signed as exit 39 northbound; access to Cumberland Head NY-Grand Isle VT Ferry
				39N	Moffitt Road	Southbound exit only
	Beekmantown	160.18	257.78	40	CR 58 –Beekmantown,Point au Roche	FormerNY 456
		162.10	260.87	Point au Roche-Beekmantown Rest Area / Gateway Information Center
	Chazy	167.77	270.00	41	CR 23 –Chazy,Sciota	FormerNY 191
	Town of Champlain	174.21	280.36	42	US 11 –Mooers,Rouses Point
		175.53	282.49	43	US 9 south –Champlain	Northern terminus of US 9; last exit in the United States
		176.16	283.50	—	A-15 north –Montreal	Continuation intoQuebec
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Electronic toll collection       Incomplete access       Route transition

The entire route is inAlbany County.^[74]

Location[74]	mi[76]	km	Exit[76]	Destinations[76]	Notes
Guilderland	0.00	0.00	–	US 20 (Western Avenue)	Southern terminus;at-grade intersection
	0.3	0.48	–	Crossgates Mall Road	Southbound exit and northbound entrance
Albany			1E-W	I-87 south /I-90 toNew York Thruway –Albany,Boston,New York,Buffalo	Northbound exit and southbound entrance; signed as exits 1E (I-90 east) and 1W (I-87 south/I-90 west); exit 1S on I-90
	0.9	1.4	–	I-87 north –Saratoga Springs,Glens Falls,Montreal	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

The entire route is inWarren County. All exits are unnumbered.

Location	mi[76]	km	Destinations[76]	Notes
Town of Lake George	0.0	0.0	I-87 –Albany,Montreal	Western terminus; exit 22 on I-87
Village of Lake George			US 9 toNY 9N south –Lake George Village	Eastbound exit and westbound entrance
Town of Lake George			NY 9N –Diamond Point,Bolton Landing,Lake George Village	Eastern terminus;at-grade intersection
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

The road has three current spur routes, all located along the Thruway portion of I-87.^[2]I-287 serves as a 99-mile (159 km)bypass around New York City, beginning at theNew Jersey Turnpike inMiddlesex County, New Jersey, and ending atI-95 (theNew England Thruway) near theConnecticut border inRye. I-287 and I-87overlap for 19 miles (31 km) acrossWestchester andRockland counties.^[2][77] East of the concurrency, I-287 is known as theCross Westchester Expressway (it was originally designated as I-187 and I-487).^[5] The other two spurs, the two-mile (3.2 km)I-587 and the 10-mile (16 km)I-787, link I-87 to the cities ofKingston andAlbany, respectively.^[2]

Two other spurs of I-87 were planned but never constructed, with no plans to sign them in the near future. In the Hudson Valley,I-487 would have run along theHudson River from I-87 and I-287 inTarrytown toI-84 east ofBeacon.^[78][79] The other spur,I-687, would have connectedI-90 in Albany to I-87 nearAlbany International Airport inColonie.^[60] Both routes were canceled in the 1970s as a result of public opposition.^[79][80] Part of what would have been I-487 is now the Croton Expressway, which is part ofUS 9, and part of what would have been I-687 is now the Albany Airport Connector, which provides direct access between the Northway (I-87) and Albany International Airport.^[81]

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• Interstate 87 atAlps' Roads • New York Routes • Upstate New York Roads
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