# List of Interstate Highways in New York

There are 31 Interstate Highways—9 main routes and 22 auxiliary routes—that exist entirely or partially in the U.S. state of New York, the most of any state. In New York, Interstate Highways are mostly maintained by the New York State Department of Transportation (NYSDOT), with some exceptions. Unlike in some other states, Interstate Highways in New York are not directly referenced by NYSDOT with their number; instead, the letter "I" is suffixed to the number of the route on reference markers and in internal documents. On the surface, there appears to be numerical duplication between several Interstate Highways and state routes—such as I-86 (I-86) and NY 86—but the "I" suffix that is appended to Interstate Highway numbers allows the Interstate Highway and state route to co-exist ("86I" versus "86", respectively).
There are a combined 1,673 miles (2,692 km) of Interstate Highways within New York, which handles about 19 percent of vehicle travel in New York. At approximately 0.50 miles (0.80 km), I-78 is the shortest main Interstate Highway, while I-90 is the longest, spanning 385.88 miles (621.01 km) within New York. I-878, located in Queens, is the shortest active route in the Interstate Highway System at 0.7 miles (1.13 km).
Small portions of I-278 in New York City are maintained by local authorities rather than the state transportation agency. In addition, parts of I-87, I-287, I-90, I-190, and I-95 are part of the New York State Thruway system and thus are maintained by the New York State Thruway Authority.

## Main routes

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
| I-78 | 0.50 | 0.80 | I-78 at the New Jersey state line in Manhattan | Canal Street in Manhattan | 01961-01-011961 | current | I-78 crosses the Hudson River from New Jersey via the Holland Tunnel and ends at the tunnel plaza in Lower Manhattan. |
| I-81 | 183.67 | 295.59 | I-81 at the Pennsylvania state line in Kirkwood | Canadian border at Thousand Islands | 01957-01-011957 | current | I-81 crosses the Pennsylvania state line south of Binghamton and heads through central New York and the North Country to the Thousand Islands, where it becomes Ontario Highway 137 at the Canada–US border. Along the way, I-81 passes through the cities of Syracuse and Watertown. |
| I-84 | 71.42 | 114.94 | I-84 at the Pennsylvania state line in Port Jervis | Connecticut state line at Southeast | 01957-01-011957 | current | I-84 crosses the New York–Pennsylvania state line near the point where New York, Pennsylvania, and New Jersey meet in the vicinity of Port Jervis. It heads generally east–west across Orange, Dutchess and Putnam counties to the Connecticut state line east of Brewster. |
| I-86 | 216.23 | 347.99 | I-86 at the Pennsylvania state line in Mina | NY 17 / NY 79 in Windsor | 01999-01-011999 | current | Gap between US 220 and I-81. I-86, known as the Southern Tier Expressway, heads east–west across the Southern Tier from the Pennsylvania state line west of Findley Lake to NY 352 east of downtown Elmira. A second section of I-86 exists in central Broome County, occupying part of a divided highway known as the Quickway. Both pieces of I-86 will eventually be part of a continuous route extending from Erie, Pennsylvania, to Harriman. The I-86 designation is being extended eastward as improvements are made to the existing NY 17 highway. |
| I-87 | 333.66 | 536.97 | I-278 in The Bronx | Canadian border at Champlain | 01957-01-011957 | current | I-87 extends from The Bronx approach to the Triborough Bridge in New York City to the Canada–US border near Champlain, where it connects with Quebec Autoroute 15, the Decarie Expressway of Montreal. The portion of I-87 from the New York City line to Albany is part of the New York State Thruway mainline; at Albany, I-87 leaves the Thruway and becomes the Adirondack Northway. Aside from Albany, I-87 also serves Kingston NY, Glens Falls, and Plattsburgh. |
| I-88 | 117.38 | 188.90 | I-81 in Chenango | I-90/New York State Thruway in Rotterdam | 01968-01-011968 | current | I-88 serves as a connector between I-81 near Binghamton and the New York State Thruway (I-90) near Schenectady. It parallels NY 7 between the two cities and passes through the city of Oneonta. |
| I-90 | 386.59 | 622.16 | I-90 at the Pennsylvania state line in Ripley | I-90/Mass Pike at the Massachusetts state line in Canaan | 01957-01-011957 | current | I-90 travels from the Pennsylvania state line at Ripley to the Massachusetts border at Canaan. The vast majority of I-90 in New York is part of the New York State Thruway system; the only segment that is not part of the system is a 20-mile (32 km) portion in the city of Albany and its eastern suburbs. Aside from Albany, I-90 also serves Buffalo, Rochester (via I-490), Syracuse, and Utica. |
| I-90N | 27.75 | 44.66 | I-90/New York State Thruway in Buffalo | Canadian border at Lewiston | 01957-01-011957 | 01959-01-011959 | I-90N was the original designation for what is now I-190 in western New York. It was renumbered to I-190 in 1959. |
| I-95 | 23.47 | 37.77 | I-95/US 1/US 9/US 46 at the New Jersey state line in Manhattan | I-95/Connecticut Turnpike at the Connecticut state line in Port Chester | 01957-01-011957 | current | I-95 extends from the George Washington Bridge over the Hudson River (where it crosses from New Jersey into New York City) to the Connecticut state line at Port Chester. It passes through New York City on the Trans-Manhattan and Cross Bronx Expressways. The portion of I-95 from the Pelham Parkway in the Bronx to the Connecticut state line is known as the New England Thruway and is part of the New York State Thruway system. |
| I-99 | 12.89 | 20.74 | I-99/US 15 at the Pennsylvania state line in Lindley | I-86/US 15/NY 17 in Painted Post | 02014-01-012014 | current | I-99 runs north from Pennsylvania along US 15 to I-86 near Corning. |
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## Auxiliary routes

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
| I-190 | 28.68 | 46.16 | Buffalo | Canadian border at Lewiston | 01959-01-011959 | current | I-190 is a spur connecting the New York State Thruway (I-90) at exit 53 near Buffalo to the Canada–United States border at Lewiston, north of Niagara Falls. The portion of I-190 south of NY 384 is part of the New York State Thruway system. I-190 is the only three-digit Interstate Highway that reaches the Canadian border. |
| I-278 | 33.77 | 54.35 | New Jersey line at Staten Island | The Bronx | 01960-01-01c. 1960 | current | I-278 crosses from New Jersey to New York by way of the Goethals Bridge over the Arthur Kill at Staten Island. It passes through all five boroughs of New York City (technically entering Manhattan when it passes over Wards Island on the Triborough Bridge) before coming to an end at the Bruckner Interchange in the Bronx. |
| I-281 | 9.45 | 15.21 | Syracuse | DeWitt | 01963-01-01c. 1963 | 01970-01-011970 | I-281 was a connector highway between I-81 and I-90 that passed through the southeastern suburbs of Syracuse. It was renumbered to I-481 in 1970, possibly to avoid confusion with NY 281, a highway that parallels I-81 some miles south of Syracuse. |
| I-287 | 30.84 | 49.63 | New Jersey line at Suffern | Rye | 01960-01-01c. 1960 | current | I-287 crosses the New Jersey border into New York near Suffern and heads generally southeastward across Rockland and Westchester counties to I-95 in Rye. Most of I-287 in Rockland County overlaps with I-87 and all of I-287 east of Suffern is part of the New York State Thruway system. |
| I-290 | 10.67 | 17.17 | Tonawanda | Amherst | 01962-01-01c. 1962 | current | I-290 is a connector between I-190 in the town of Tonawanda and the New York State Thruway (I-90) near Williamsville. It serves as a northern bypass of Buffalo. |
| I-295 | 9.77 | 15.72 | Queens | The Bronx | 01970-01-011970 | current | I-295 is a connector route within New York City. It travels from the Grand Central Parkway in Queens to the Bruckner Interchange in the Bronx. It crosses the East River by way of the tolled Throgs Neck Bridge. |
| I-390 | 76.36 | 122.89 | Avoca | Gates | 01973-01-01c. 1973 | current | I-390 extends from the Southern Tier Expressway (I-86 and NY 17) in the Southern Tier town of Avoca to I-490 just west of Rochester. I-390 connects to I-90 (the New York State Thruway) in Henrietta, a southern suburb of Rochester.It continues north as NY 390. |
| I-478 | 2.41 | 3.88 | Brooklyn | Manhattan | 01970-01-01c. 1970 | current | I-478's entire length consists of the Brooklyn–Battery Tunnel and its approaches. Its south end is at I-278, and its north end is at NY 9A. |
| I-481 | 15.14 | 24.37 | Syracuse | North Syracuse | 01970-01-011970 | current | I-481 leaves I-81 south of Syracuse and rejoins its parent in North Syracuse. I-81 serves downtown Syracuse while I-481 bypasses the city to the east, passing through the Syracuse suburbs of Jamesville and DeWitt along the way. It continues north as NY 481. |
| I-487 | — | — | The Bronx | Beacon | — | — | I-487 was a proposed designation for the Hudson River Expressway, a highway that would have run through the Hudson Valley between the Bronx and Beacon. The project was cancelled by 1971. |
| I-490 | 37.53 | 60.40 | Le Roy | Victor | 01961-01-01c. 1961 | current | I-490 is a loop route off the New York State Thruway (I-90) between the town of Le Roy and the town of Victor. I-90 bypasses the city of Rochester to the south while I-490 serves the city's suburbs and Rochester itself. |
| I-495 | 70.89 | 114.09 | Manhattan | Riverhead | 01958-01-011958 | current | I-495, better known as the Long Island Expressway or LIE, extends across Long Island from the western portal of the Queens Midtown Tunnel in Manhattan to Riverhead, Suffolk County. The 2017 route log shows that there is a gap in the designation between I-278 and I-678, where it is designated in between as NY 495, which is incorrect. |
| I-587 | 1.23 | 1.98 | Kingston | Kingston | 01960-01-011960 | current | I-587 is a short spur linking downtown Kingston to the New York State Thruway (I-87) at exit 19 northwest of the city. It is entirely concurrent with NY 28. |
| I-590 | 4.91 | 7.90 | Brighton | Rochester | 01980-01-011980 | current | I-590 serves as a connector between I-390 in Brighton and I-490 in Rochester (at the Can of Worms). It continues north as NY 590. |
| I-678 | 14.68 | 23.63 | Queens | The Bronx | 01965-01-01c. 1965 | current | I-678 runs entirely within two boroughs of New York City: Queens and the Bronx. The highway begins at the John F. Kennedy International Airport and ends at the Bruckner Interchange in the Bronx. |
| I-684 | 28.47 | 45.82 | White Plains | Southeast | 01970-01-011970 | current | I-684 connects I-287 in White Plains to I-84 near Brewster. A small portion of the route is located in Connecticut. |
| I-687 | 4.6 | 7.4 | Albany | Colonie | — | — | I-687 was a proposed designation for a connector between I-90 and I-87 in northern Albany. The expressway was never constructed due to a lack of funding. I-687 was removed from local and national highway plans in the 1970s. The I-687 designation is currently reserved. |
| I-690 | 14.18 | 22.82 | Van Buren | DeWitt | 01962-01-01c. 1962 | current | I-690 travels southeast from exit 39 on the New York State Thruway (I-90) in Van Buren and passes through the western suburbs of Syracuse before heading east through the city itself and terminating in DeWitt, where it merges into I-481. I-690 serves the New York State Fairgrounds by way of exits 5–7. It continues north as NY 690. |
| I-695 | 1.77 | 2.85 | The Bronx | The Bronx | 01986-01-011986 | current | I-695 is a short connector route in the Bronx between I-295 (Cross Bronx Expressway) and I-95 (Bruckner Expressway) near the Throgs Neck Bridge. |
| I-781 | 4.52 | 7.27 | Pamelia | Le Ray | 02009-01-012009 | current | I-781 is a connector north of Watertown between I-81 and Fort Drum. It was completed in 2012. |
| I-787 | 9.96 | 16.03 | Albany | Troy | 01965-01-01c. 1965 | current | I-787 is a spur leading from New York State Thruway exit 23 southwest of downtown Albany to the city of Troy north of Albany. In between, I-787 passes through downtown Albany. |
| I-790 | 2.06 | 3.32 | Utica | Utica | 01961-01-01c. 1961 | current | I-790 is a short connector route linking downtown Utica to exit 31 of the New York State Thruway (I-90) northeast of the city. |
| I-878 | 0.70 | 1.13 | Queens | Queens | 01970-01-011970 | current | I-878 is an unsigned designation for the portion of NY 878 from I-678 (Van Wyck Expressway) east to the JFK Expressway. It is the shortest three-digit Interstate Highway in the Interstate Highway System. I-878 is not shown in the traffic logs. |
| I-890 | 8.80 | 14.16 | Guilderland | Rotterdam | 01962-01-011962 | current | I-890 is a loop route off the New York State Thruway (I-90) between Gilderland and Rotterdam. While the Thruway bypasses the city of Schenectady to the south, I-890 directly serves it. |
| I-895 | 1.35 | 2.17 | The Bronx | The Bronx | 01970-01-011970 | 02017-01-012017 | I-895 was a short freeway in the Bronx, linking the Bruckner Expressway (I-278) to the Cross Bronx Expressway (I-95); renumbered as NY 895. |
| I-990 | 6.53 | 10.51 | Amherst | Amherst | 01981-01-01c. 1981 | current | I-990 is a spur in the Buffalo suburb of Amherst that leads from I-290 to NY 263 in northern Erie County. It is the highest numbered route in the Interstate Highway System. |
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