Navigating the New York State Thruway section of Interstate 87 can feel overwhelming if you don't know where you're heading. Spanning from New York City up to the Albany area before transitioning into the Adirondack Northway, this stretch handles hundreds of thousands of commuters, commercial truckers, and weekend travelers every single day. Understanding the layout of the New York State Thruway helps you avoid missed turns, unexpected tolls, and heavy delays around major metropolitan junctions.
The Thruway portion of I-87 begins at the New York City-Yonkers border and runs north to Exit 24 in Albany, where the mainline continues as I-90 while I-87 splits north toward Canada. Unlike traditional highways that use sequential numbering starting over at every county or state line, the Thruway keeps a unique sequential numbering system implemented decades ago, though mileposts track exact distances. Whether you're driving down to Westchester County or heading up toward the Catskills, knowing the critical exits ahead of time keeps your trip smooth.
Southern Westchester and Major Commuter Interchanges
The southern segment of the I-87 Thruway cuts through Yonkers and lower Westchester County, characterized by dense traffic, tight interchange spacing, and complex toll structures. This section connects local parkways directly with massive commuter corridors.
- Exit 1 through Exit 6 (Yonkers Area): These early exits handle local Yonkers traffic, including Yonkers Avenue (Exit 2) and Tuckahoe Road (Exit 6). Watch closely here, as several ramps feature partial access where you can exit northbound but cannot re-enter southbound easily.
- Exit 7A (Saw Mill River Parkway / Taconic State Parkway): A crucial split for passenger cars heading north toward the Taconic or connecting back to local parkways without taking the mainline interstate.
- Exit 8 (Cross Westchester Expressway / I-287): One of the busiest junctions on the entire route. This connects I-87 to White Plains, Rye, and the Mario M. Cuomo Bridge approach via I-287. If you're heading toward Connecticut or New England, this is your primary transition point.
- Exit 9 (Tarrytown / Sleepy Hollow): Located just before the bridge crossing, this exit serves Route 9 and local Hudson River historic sites.
Crossing the Hudson: Rockland County Exits
Once you cross the Hudson River via the Governor Mario M. Cuomo Bridge (formerly the Tappan Zee), I-87 enters Rockland County. This stretch connects major interstate feeder routes heading toward New Jersey and Upstate New York.
- Exit 10 and Exit 11 (Nyack): Serving South Nyack and Nyack via U.S. Route 9W. These exits provide direct access to riverfront villages and local dining spots.
- Exit 12 (West Nyack): Routes drivers to NY Route 303 and the massive Palisades Center mall complex, making it a high-congestion point on weekends.
- Exit 13 (Palisades Interstate Parkway): A major split offering access north toward Bear Mountain or south toward New Jersey (passenger cars only).
- Exit 14A (Garden State Parkway Connector): Essential for motorists cutting across into New Jersey without navigating local surface streets.
- Exit 15 and Exit 15A (Suffern / Sloatsburg): The final cluster of exits before the Thruway climbs into the more rugged terrain of Orange County, featuring heavy truck inspection facilities and tandem trailer staging lots.
The Hudson Valley and Catskills Corridor
Leaving the suburban sprawl behind, I-87 stretches north through the scenic Hudson Valley and past the eastern edge of the Catskill Mountains. Exits are spaced much further apart here, often separated by 10 to 15 miles of rolling hills and rural landscape.
- Exit 16 (Harriman / Route 17): A massive gateway for travelers heading toward the central Catskills, resorts, and outdoor recreation areas via US Route 6 and NY Route 17 (future I-86).
- Exit 17 (Newburgh / I-84): Connects the Thruway to Interstate 84, opening up cross-state travel toward Scranton, Pennsylvania, or across the Newburgh-Beacon Bridge toward Danbury, Connecticut. Stewart International Airport is also accessed here.
- Exit 18 (New Paltz): Heavily utilized by college students, hikers, and weekend tourists heading to the Shawangunk Ridge (the Gunks) and local vineyards via Route 299.
- Exit 19 (Kingston): Serves downtown Kingston and the Kingston-Rhinecliff Bridge, which spans the Hudson to connect with the Rhinebeck and Dutchess County side.
- Exit 20 (Saugerties): The primary off-ramp for Woodstock visitors, local arts festivals, and northern Catskill lodging.
Capital District and Northern Terminus
As the Thruway approaches the state capital, the highway flattens out and intersects major east-west arteries connecting to Massachusetts and western New York.
- Exit 21 (Catskill): Provides access to Route 23, bridging the gap between the Hudson River and the northern mountain peaks.
- Exit 21A (Berkshire Connector / I-90 East): A vital junction for drivers wanting to bypass Albany entirely to head toward Massachusetts and Boston via the Mass Pike.
- Exit 23 (Albany / I-787): Connects directly to Interstate 787, leading straight into downtown Albany, state government offices, and local Troy connections.
- Exit 24 (Albany / Montreal): The literal end of the New York State Thruway mainline. Here, the highway merges with Interstate 90 (heading west toward Buffalo or east toward Boston) and transitions seamlessly into Interstate 87 North, known locally as the Adirondack Northway, which runs all the way to the Canadian border.
Common Mistakes to Avoid When Driving I-87
Drivers frequently run into avoidable hassles on this specific stretch of highway because they treat it like a standard local interstate. Keep these practical pointers in mind:
- Misunderstanding Toll Structures: The Thruway utilizes cashless tolling gantries. If you don't have an E-ZPass, cameras snap a photo of your license plate and mail a bill to your registered address at a higher rate. Don't stop looking for toll booths—they've been demolished or converted to overhead gantries.
- Missing the I-90 Split at Exit 24: Many drivers assume I-87 runs continuously as a single numbered highway all the way to Canada without changing names. At Exit 24 in Albany, you must pay attention to overhead signage. Staying straight puts you on I-90, while catching the proper ramp keeps you on I-87 North toward Montreal.
- Ignoring Service Area Spacing: In the upper Hudson Valley and Catskills segments, rest stops can be spaced 20 to 30 miles apart. Don't wait until your fuel light turns on to look for food or gas.
Frequently Asked Questions
Does the New York State Thruway still use paper tickets?
No. The Thruway fully transitioned to a cashless tolling system. Tolls are billed electronically via E-ZPass transponders or recorded by overhead optical readers that mail an invoice to the vehicle's registered owner.
Where does the New York State Thruway portion of I-87 officially end?
It ends at Exit 24 in Albany. North of this exit, the roadway becomes the Adirondack Northway, maintaining the I-87 designation all the way to the Canadian border in Champlain.
Which exits provide access to the Catskill Mountains?
Exits 16 (Harriman), 19 (Kingston), 20 (Saugerties), and 21 (Catskill) are the primary routes used by motorists accessing various trailheads, ski resorts, and towns within the Catskill Park region.
Are commercial trucks allowed on all sections of I-87?
Trucks are permitted along the entire Thruway mainline, but certain local connecting parkways in Westchester County—such as sections of the Saw Mill River Parkway—strictly prohibit commercial vehicles. Always watch overhead clearance warning signs.
