Interstate 684 Auxiliary route of the Interstate Highway System
Length:	28. The Dwight D Eisenhower National System of Interstate and Defense Highways, commonly called the Interstate Highway System (or simply the Interstate System) 4 mi (45. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States 7 km)
Formed:	1968 (completed in 1974)
South end:	I-287 near White Plains, NY
Major junctions:	Hutchinson River in Harrison, NY Saw Mill in Katonah, NY I-84 near Brewster
North end:	NY 22 near Brewster, NY

The 684 C/D road at the Saw Mill and NY 117

Interstate 684 (abbreviated I-684) is a 28. The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand Interstate 287 (abbreviated I-287) is a major Interstate highway in New Jersey and New York. The City of White Plains is the County seat of Westchester County New York. The Hutchinson River Parkway (also known as The Hutch) is an long Parkway in Downstate New York. Harrison is a town/village in Westchester County, New York, United States. The Saw Mill River Parkway is a 289 mile north-south Parkway running diagonally through Westchester County New York. Katonah New York is one of three unincorporated hamlets within the town of Bedford, Westchester County. Interstate 84 (abbreviated I-84) is an Interstate highway extending from Dunmore Pennsylvania (near Scranton Pennsylvania) at an intersection Brewster is a Village located in the Town of Southeast in Putnam County New York, United States. New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City Brewster is a Village located in the Town of Southeast in Putnam County New York, United States. 4 mile-long (45. 7 km) north-south Interstate highway in the states of New York and Connecticut. The Dwight D Eisenhower National System of Interstate and Defense Highways, commonly called the Interstate Highway System (or simply the Interstate System) New York ( is a state in the Mid-Atlantic and Northeastern regions of the United States and is the nation's third most populous Connecticut ( is a state located in the New England region of the northeastern United States of America. The highway connects Interstate 84 with Interstate 287 and the Hutchinson River Parkway, primarily serving commuter traffic to/from the northern suburbs of the New York metropolitan area. Interstate 84 (abbreviated I-84) is an Interstate highway extending from Dunmore Pennsylvania (near Scranton Pennsylvania) at an intersection Interstate 287 (abbreviated I-287) is a major Interstate highway in New Jersey and New York. The Hutchinson River Parkway (also known as The Hutch) is an long Parkway in Downstate New York. The New York metropolitan area, often referred to as the Tri-State Area, is the most populous Metropolitan area in the United States and is also one

Route description

Interstate 684 actually begins as two separate spur routes. A control city is a city or locality posted on a Traffic sign indicating forward destinations on a certain route The City of White Plains is the County seat of Westchester County New York. Interstate 287 (abbreviated I-287) is a major Interstate highway in New Jersey and New York. North Castle is a town in Westchester County, New York, United States. Katonah New York is one of three unincorporated hamlets within the town of Bedford, Westchester County. Brewster is a Village located in the Town of Southeast in Putnam County New York, United States. The primary spur (the one officially designated I-684) begins at the White Plains/Harrison line at Exit 9A of the Cross-Westchester Expressway (Interstate 287). The City of White Plains is the County seat of Westchester County New York. Harrison is a town/village in Westchester County, New York, United States. The Cross Westchester Expressway is the name given to the part of Interstate 287 which runs from the Interstate 87 / 287 interchange ( Map in the town of Interstate 287 (abbreviated I-287) is a major Interstate highway in New Jersey and New York. The other (designated New York State Reference Route 984J but still signed I-684) begins in Harrison, New York at exit 26A of the Hutchinson River Parkway and has one independent exit before joining with the I-287 spur into one route. New York State Reference Routes and Parkway Routes are New York State Highways that possess a signed name (mainly parkways that the New York State Department Harrison is a town/village in Westchester County, New York, United States. The Hutchinson River Parkway (also known as The Hutch) is an long Parkway in Downstate New York. The route follows a northerly course near the New York/Connecticut border, passing the Westchester County Airport, and at one point actually crossing the northwest corner of the Connecticut panhandle for 1. New York ( is a state in the Mid-Atlantic and Northeastern regions of the United States and is the nation's third most populous Connecticut ( is a state located in the New England region of the northeastern United States of America. The Connecticut Panhandle, informally known to locals as the Tail, is in southwestern Connecticut, where it abuts New York State. 4 miles (2. 3 km) without any exits before returning to New York (this brief interstate section is maintained by the New York State Department of Transportation but owned by the Connecticut Department of Transportation). New York ( is a state in the Mid-Atlantic and Northeastern regions of the United States and is the nation's third most populous The New York State Department of Transportation (NYSDOT is responsible for the development and operation of Highways, railroads, Mass transit systems The Connecticut Department of Transportation (ConnDOT is responsible for the development and operation of Highways railroads, Mass transit systems Towards the northern border of Westchester County, it meets the northern terminus of the Saw Mill River Parkway. Westchester County is a primarily Suburban county located in the U The Saw Mill River Parkway is a 289 mile north-south Parkway running diagonally through Westchester County New York. Once crossing into Putnam County, I-684 interchanges with its parent Interstate 84 in Brewster (map) before making a final interchange at a concurrency of U.S. Route 6, U.S. Route 202, and New York State Route 22, at which point the route terminates and becomes part of New York State Route 22. Putnam County is a County located in the US state of New York, in the lower Hudson Valley. Interstate 84 (abbreviated I-84) is an Interstate highway extending from Dunmore Pennsylvania (near Scranton Pennsylvania) at an intersection Brewster is a Village located in the Town of Southeast in Putnam County New York, United States. US Route 6, also called the Grand Army of the Republic Highway, is a main route of the U US Route 202 is a highway stretching from Delaware to Maine, also passing through the states of Pennsylvania, New Jersey, New York New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City The speed limit is 65 mph (105 km/h), except on the spur from the Hutchinson River Parkway to just north of the Interstate 287 merge, and just south of the Interstate 84 terminus. The Hutchinson River Parkway (also known as The Hutch) is an long Parkway in Downstate New York. Interstate 287 (abbreviated I-287) is a major Interstate highway in New Jersey and New York. Interstate 84 (abbreviated I-84) is an Interstate highway extending from Dunmore Pennsylvania (near Scranton Pennsylvania) at an intersection

The route of the New York section of Interstate 684 is defined as part of Interstate Route 502 in New York Highway Law § 340-a. [1]

History

The alignment of I-684 is part of the original routing of Interstate 87. Interstate 87 (abbreviated I-87) is a 33349 mile (53670 km intrastate Interstate highway located entirely within the state of New York The designation was changed in 1970 when it was decided to have I-87 go along the New York State Thruway and, north of Albany, the Adirondack Northway. The New York State Thruway (officially the Governor Thomas E Dewey Thruway) is a limited-access toll Highway in the U Interstate 87 (abbreviated I-87) is a 33349 mile (53670 km intrastate Interstate highway located entirely within the state of New York

Exit list

Diagram of interchanges 5 and 6.

County	Town	Mile	Exit	Road	Notes
Westchester	White Plains	0. Westchester County is a primarily Suburban county located in the U The City of White Plains is the County seat of Westchester County New York. 0		I-287 – Rye, White Plans	I-287 East, To I-95 keep straight I-287 West, Westchester Avenue exit on the right
	Harrison	0. Interstate 287 (abbreviated I-287) is a major Interstate highway in New Jersey and New York. Rye is a city in Westchester County, New York, United States. The City of White Plains is the County seat of Westchester County New York. Interstate 95, the major Interstate Highway along the East Coast of the United States, runs 23 Harrison is a town/village in Westchester County, New York, United States. 8	1	Hutchinson River Parkway South – Whitestone Bridge	Southbound exit only – No commercial vehicles this exit. The Hutchinson River Parkway (also known as The Hutch) is an long Parkway in Downstate New York. The Bronx-Whitestone Bridge, colloquially referred to as the Whitestone Bridge or simply the Whitestone is a Suspension bridge that crosses the East River and connects Reference Route 984J (signed as I-684) One intermediate exit (Exit 1A) for Manhattanville Road. New York State Reference Routes and Parkway Routes are New York State Highways that possess a signed name (mainly parkways that the New York State Department
	North Castle	4. North Castle is a town in Westchester County, New York, United States. 4	2	NY 120 – Westchester County Airport	County Route 135 (Airport Road)
Fairfield	Greenwich	New York/Connecticut border. New York State Route 120 (NY 120 is a state highway in southern Westchester County New York. Named after the extremely large area of salt-marshes and swamps both on the coast and inland Fairfield County is located in the southwestern corner of the U Greenwich is a town in Fairfield County, Connecticut, United States. New York ( is a state in the Mid-Atlantic and Northeastern regions of the United States and is the nation's third most populous Connecticut ( is a state located in the New England region of the northeastern United States of America. I-684 runs for 1. 4 miles (2. 3 km) within Connecticut then re-enters New York. No exits in Connecticut.
Westchester	North Castle	7. Westchester County is a primarily Suburban county located in the U North Castle is a town in Westchester County, New York, United States. 6	3N-S	NY 22 – Bedford, Armonk	Single exit southbound
	Bedford	12. New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City Bedford New York can refer to Bedford (town New York Bedford (CDP New York (census-designated place Bedford Brooklyn Armonk is a census-designated place (CDP located in the town of North Castle in Westchester County New York. Bedford New York can refer to Bedford (town New York Bedford (CDP New York (census-designated place Bedford Brooklyn 6	4	NY 172 – Bedford, Mount Kisco
		16. New York State Route 172 is an long state highway in Westchester County New York, United States. Bedford New York can refer to Bedford (town New York Bedford (CDP New York (census-designated place Bedford Brooklyn Mount Kisco is both a village and a town in Westchester County, New York, United States. 8	5	Saw Mill River Parkway NY 117	Southbound exit only. The Saw Mill River Parkway is a 289 mile north-south Parkway running diagonally through Westchester County New York. New York State Route 117 is a 1557 mile (2506 km long State highway in Westchester County, New York. The Saw Mill acts as a collector-distributor road beginning just south of the NY 35 interchange. A collector/distributor road, often abbreviated as C/D road, is a one-way road next to a Freeway that is used for some or all of the ramps that would otherwise merge
		17. 7	6	NY 35 – Cross River, Katonah	Northbound, the Saw Mill acts as a collector-distributor road and ends just south of the NY 35 interchange. New York State Route 35 is the principal east-west highway in the northern part of Westchester County New York, carrying average daily volumes of around 16500 vehicles Lewisboro is a town in Westchester County, New York, United States. Katonah New York is one of three unincorporated hamlets within the town of Bedford, Westchester County. A collector/distributor road, often abbreviated as C/D road, is a one-way road next to a Freeway that is used for some or all of the ramps that would otherwise merge
	Lewisboro	19. Lewisboro is a town in Westchester County, New York, United States. 9	6A	NY 22 TO NY 138 – Goldens Bridge	Northbound exit only
	North Salem	22. New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City New York State Route 138 is a 519-mile long state highway in Westchester County New York. Goldens Bridge is a hamlet (and census-designated place) located in the town of Lewisboro in Westchester County New York. North Salem is a town in Westchester County, New York, United States. 4	7	NY 116 – Purdys, Somers	Northbound exit only, TO NY 22
		23. New York State Route 116 is an 812-mile (13 km long east-west state highway in Westchester County New York. Somers is a town located in northeastern Westchester County, New York, United States. Somers is a town located in northeastern Westchester County, New York, United States. New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City 9	8	Hardscrabble Road – Croton Falls, Purdys
Putnam	Southeast	28. North Salem is a town in Westchester County, New York, United States. Somers is a town located in northeastern Westchester County, New York, United States. Putnam County is a County located in the US state of New York, in the lower Hudson Valley. Southeast is a Town in Putnam County, New York, United States. 1	9E-W	I-84 – Newburgh, Danbury
		28. Interstate 84 (abbreviated I-84) is an Interstate highway extending from Dunmore Pennsylvania (near Scranton Pennsylvania) at an intersection 4	10	US 6/US 202/NY 22 (south)
		28. The New York segment of the cross-country US Route 6 takes 78 miles (126 km to traverse the state in the narrowing funnel that becomes Downstate US Route 202 is a highway stretching from Delaware to Maine, also passing through the states of Pennsylvania, New Jersey, New York New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City 5	Northbound I-684 ends; roadway downgrades and continues as NY 22 northbound. New York State Route 22 (NY 22 is New York State highway running north&ndashsouth parallel to the state's eastern edge from the outskirts of New York City

External links

• Information about I-684 at nycroads.com

Browse numbered routes
< I-678	NY		I-690 >
< I-395	CT		I-691 >