The Hutchinson River Parkway is a controlled-access parkway in southern New York in the United States. It extends for 18.71 miles (30.11 km) from the Bruckner Interchange in the Throggs Neck section of the Bronx to the New York–Connecticut state line at Rye Brook. The parkway continues south from the Bruckner Interchange as the Whitestone Expressway (Interstate 678) and north into Greenwich, Connecticut, as the Merritt Parkway. The roadway is named for the Hutchinson River, a 10-mile-long (16 km) stream in southern Westchester County that the road follows alongside. The river, in turn, was named for English colonial religious leader Anne Hutchinson.
The Merritt Parkway is a controlled-access parkway in Fairfield County, Connecticut, with a small section at the northern end in New Haven County. Designed for Connecticut's Gold Coast, the parkway is known for its scenic layout, its uniquely styled signage, and the architecturally elaborate overpasses along the route. As one of the first, oldest parkways in the United States, it is designated as a National Scenic Byway and is also listed in the National Register of Historic Places. Signed as part of Route 15, it runs from the New York state line in Greenwich, where it serves to continue the Hutchinson River Parkway, to Exit 54 in Milford, where the Wilbur Cross Parkway begins. Facing bitter opposition, the project took six years to build in three different sections, with the Connecticut Department of Transportation constantly requiring additional funding due to the area's high property value. The parkway was named for U.S. Congressman Schuyler Merritt. In 2010, the National Trust for Historic Preservation called the Merritt Parkway one of "America's 11 Most Endangered Historic Places".
Route 15 is a state highway in the U.S. state of Connecticut that runs 83.53 miles (134.43 km) from a connection with New York's Hutchinson River Parkway in Greenwich, Connecticut, to its northern terminus intersecting with Interstate 84 (I-84) in East Hartford, Connecticut. Route 15 consists of four distinct sections: the Merritt Parkway, the Wilbur Cross Parkway, most of the Berlin Turnpike, and part of the Wilbur Cross Highway. The unified designation was applied to these separate highways in 1948 to provide a continuous through route from New York to Massachusetts. The parkway section of Route 15 is often referred to locally as "The Merritt".
Interstate 684 (I-684) is a 28.53-mile (45.91 km) auxiliary Interstate Highway in the state of New York in the United States. There is also a short portion in Connecticut with no junctions. The highway connects I-84 with I-287 and the Hutchinson River Parkway, primarily serving commuter traffic to and from the northern suburbs of the New York metropolitan area. Most of the route is in northern Westchester County. The route of the highway was originally designated as part of I-87 from 1968 to 1970. The first section of the roadway opened to traffic in October 1968, and the final segment was completed in December 1974.
Route 17 is a primary north–south state route beginning in New Haven, through Middletown, and ending in Glastonbury, with a length of 36.33 miles (58.47 km).
Route 8 is a 67.36-mile (108.41 km) state highway in Connecticut that runs north–south from Bridgeport, through Waterbury, all the way to the Massachusetts state line where it continues as Massachusetts Route 8. Most of the highway is a four-lane freeway but the northernmost 8.8 miles (14.2 km) is a two-lane surface road.
Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running in a general east–west compass direction for 111.57 miles (179.55 km) in Connecticut, from the New York state line to the Rhode Island state line. I-95 from Greenwich to East Lyme is part of the Connecticut Turnpike, during which it passes through the major cities of Stamford, Bridgeport, and New Haven. After leaving the turnpike in East Lyme, I-95 is known as the Jewish War Veterans Memorial Highway and passes through New London, Groton, and Mystic, before exiting the state through North Stonington at the Rhode Island border.
New York State Route 35 (NY 35) is the principal east–west highway in the northern part of Westchester County, New York, carrying average daily volumes of around 16,500 vehicles. Its western terminus is at US 9 in Peekskill, while its eastern terminus is at the Connecticut state line in Lewisboro, where it becomes that state's Route 35.
New York State Route 120A (NY 120A) is a state highway in southern Westchester County, New York, in the United States. It serves as an alternate route to the southern half of NY 120 running along the New York–Connecticut state line. The southern terminus of the route is at NY 120 in Harrison. Its northern terminus is at NY 120 in North Castle. Most of the 8.55-mile (13.76 km) route straddles the New York–Connecticut state line, and part of the route is physically located in Connecticut. However, this part of the highway is not recognized by Connecticut as "Route 120A", and is considered to be part of NY 120A by the New York State Department of Transportation (NYSDOT).
New York State Route 121 (NY 121) is a north–south state highway in the Hudson Valley of New York, United States. It begins in northern Westchester County at an intersection with NY 22 in Bedford and extends for 15.56 miles (25.04 km) to a junction with U.S. Route 6 and U.S. Route 202 east of the village of Brewster in Putnam County. As the route heads north, it briefly overlaps with NY 35 and NY 116 in Westchester County and connects to Interstate 84 (I-84) in Putnam County. NY 121 was assigned as part of the 1930 renumbering of state highways in New York.
New York State Route 124 (NY 124) is a 4.96-mile (7.98 km) long north–south state highway in the northern part of Westchester County, New York, in the United States. NY 124 begins at NY 137 in the hamlet of Pound Ridge. It heads north and crosses into the town of Lewisboro, ending west of the hamlet of South Salem at NY 35. Just before the junction with NY 35, NY 124 splits into a west leg and an east leg, with both legs ending at NY 35. Both legs are signed as NY 124 but the main line officially runs on the west leg. The east leg is internally designated as NY 983D, an unsigned reference route. Both legs are approximately 0.35 miles (0.56 km) in length.
New York State Route 137 (NY 137) is a 5.51-mile (8.87 km) long state highway in Westchester County, New York, in the United States. The route is a continuation of Connecticut's Route 137, which links NY 137 to Stamford, Connecticut. NY 137 goes through the hamlet of Pound Ridge and ends at NY 121 north of the hamlet of Bedford, locally known as Bedford Village.
New York State Route 172 (NY 172) is an 8.89-mile (14.31 km) state highway in Westchester County, New York, in the United States. The route runs from NY 117 in the village of Mount Kisco east to the hamlet of Pound Ridge at NY 137.
New York State Route 370 (NY 370) is an east–west state highway in Central New York in the United States. It extends for about 35 miles (56.33 km) from an intersection with NY 104 and NY 104A south of the Wayne County village of Red Creek to a junction with U.S. Route 11 (US 11) in the Onondaga County city of Syracuse. The western and central portions of the route pass through mostly rural areas; however, the eastern section serves densely populated areas of Onondaga County, including the villages of Baldwinsville and Liverpool. NY 370 also passes through Cayuga County, where it connects to NY 34, a major north–south highway in Central New York.
Route 137 is a main highway running north–south through the city of Stamford, Connecticut. It runs for about 9.3 miles (15.0 km) from Downtown Stamford up to North Stamford and then to New York state line in the town of Pound Ridge, New York.
North Stamford is an affluent section of Stamford, Connecticut, United States, north of the Merritt Parkway. Mostly woody and hilly, it is the least densely populated, and highest income section of the city, with a 2021 median household income in excess of $250,000. The two main roadways in North Stamford are High Ridge Road and Long Ridge Road. North Stamford borders Pound Ridge, New York, at the New York line to the north, the "back country" section of Greenwich, Connecticut, to the west, and the Town of New Canaan, Connecticut, to the east. According to the 2010 census, North Stamford has a population of 14,904. The City of Stamford as a whole had a population of 135,470.
U.S. Route 5 (US 5), a north–south United States Numbered Highway that is generally paralleled by Interstate 91 (I-91), begins at the city of New Haven in Connecticut and heads north through western Massachusetts and eastern Vermont to the international border with Canada. Within Connecticut, US 5 proceeds north from New Haven and passes through Meriden and Hartford toward Springfield, Massachusetts.
Route 123 is a secondary state highway in southwestern Connecticut from Norwalk to the New York state line near the town of Lewisboro.
Route 111 is a state highway in southwestern Connecticut, United States, running from the Merritt Parkway (Route 15) in Trumbull to Route 34 in Monroe. The junction with the Merritt Parkway is currently the only single-point urban interchange (SPUI) in the entire state.
Route 124 is a state highway in southwestern Connecticut running from downtown Darien through the center of New Canaan to the state line in Scotts Corners, New York.
Route 137 in Stamford 
Route 15 / Merritt Parkway in Stamford 
