New York State Route 27A
Encyclopedia
New York State Route 27A (NY 27A) is a state highway
State highway
State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 extending from Massapequa
Massapequa, New York
Massapequa is a hamlet located in the suburban Nassau County, New York. As of the 2010 census, the CDP had a total population of 21,685.Massapequa is located on the South Shore of Long Island....

 in Nassau County
Nassau County, New York
Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...

 to Oakdale
Oakdale, New York
Oakdale is a hamlet in Suffolk County, New York, United States. The population was 8,075 at the 2000 census. Oakdale is in the Town of Islip.- History :...

 in Suffolk County
Suffolk County, New York
Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...

 on Long Island
Long Island
Long Island is an island located in the southeast part of the U.S. state of New York, just east of Manhattan. Stretching northeast into the Atlantic Ocean, Long Island contains four counties, two of which are boroughs of New York City , and two of which are mainly suburban...

, New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 in the United States. Its two most prominent components are Merrick Road
Merrick Road
Merrick Road, named Merrick Boulevard inside New York City, is a road running from Jamaica, Queens, New York east through Merrick, New York to the line between Nassau and Suffolk Counties, where it becomes Montauk Highway. A bit of it at the east end is signed and maintained by the New York State...

 and Montauk Highway
Montauk Highway
Montauk Highway is one of the original through highways of Long Island, New York, extending from Jamaica, in the New York City borough of Queens to Montauk Point in Suffolk County, a distance of approximately 100 miles ....

.

Route description

NY 27A starts out at the intersection of Sunrise Highway, Old Sunrise Highway and Carman Mill Road in eastern Massapequa
Massapequa, New York
Massapequa is a hamlet located in the suburban Nassau County, New York. As of the 2010 census, the CDP had a total population of 21,685.Massapequa is located on the South Shore of Long Island....

. Once at the intersection, NY 27A travels south (east on the route shield) along Carman Mill Road for 6/10 of a mile to Merrick Road. Once at Merrick Road, NY 27A makes a left, heading eastbound as an unsigned, county-maintained route to the Nassau/Suffolk County border. Once in Suffolk County, NY 27A is a full-fledged state route with reassurance shields and reference marker
Reference marker (New York)
In New York, a reference marker is a small green sign mounted approximately every one-tenth mile on highways maintained by the New York State Department of Transportation. This was initiated in response to the Highway Safety Act of 1966 enacted by Congress, in an effort to monitor traffic and...

s. NY 27A remains Merrick Road through Amityville
Amityville, New York
Amityville is a village in the town of Babylon in Suffolk County, New York, in the United States. The population was 9,441 at the 2000 census.-History:...

 until it reaches Copiague
Copiague, New York
Copiague is a hamlet in Suffolk County, New York, United States. The population was 18,037 at the 2007 census. Once Copiague was a thriving Italian community. Many years ago a part of Copiague was named after Marconi. The ethnic makeup of the hamlet is quite diverse, making Copiague a rich...

, where it becomes Montauk Highway
Montauk Highway
Montauk Highway is one of the original through highways of Long Island, New York, extending from Jamaica, in the New York City borough of Queens to Montauk Point in Suffolk County, a distance of approximately 100 miles ....

. This name remains along NY 27A through Lindenhurst
Lindenhurst, New York
Lindenhurst is a village in Suffolk County, New York, on the southern shore of Long Island in the Town of Babylon. The population was 27,819 at the 2000 census.-Geography:Lindenhurst is located at ....

 and Babylon
Babylon (village), New York
Babylon is a village in Suffolk County, New York, United States. The population was 12,615 at the 2000 census.Its official name is The Incorporated Village of Babylon...

 to the Robert Moses Causeway
Robert Moses Causeway
The Robert Moses Causeway is an long parkway in Suffolk County, New York. The parkway, originally known as the Captree Causeway, connects West Islip on Long Island to the barrier beach islands, such as Captree Island, Jones Beach Island, and the western tip of Fire Island, to the south. It is...

 in West Islip
West Islip, New York
West Islip is a hamlet and CDP, located in Suffolk County, New York, USA. Situated on the south shore of Long Island, the population of the CDP was 29,907 at the time of the 2000 census.-Geography:West Islip is located at ....

. Along the route, Montauk Highway is also called South Country Road east of Robert Moses Causeway
Robert Moses Causeway
The Robert Moses Causeway is an long parkway in Suffolk County, New York. The parkway, originally known as the Captree Causeway, connects West Islip on Long Island to the barrier beach islands, such as Captree Island, Jones Beach Island, and the western tip of Fire Island, to the south. It is...

 up to Brightwaters
Brightwaters, New York
Brightwaters is a village in southwest part of the town of Islip, which is in western Suffolk County, New York, United States. The population was 3,248 at the 2000 census. Brightwaters is a suburb of New York City.-Geography:...

, and then Main Street through Bay Shore
Bay Shore, New York
Bay Shore is a hamlet and a census-designated place located in the Town of Islip, Suffolk County, New York, USA. It is situated on the south shore of Long Island, adjoining the Great South Bay. Bay Shore celebrated its 300th anniversary in 2008. The population of the CDP was 23,852 at the time of...

 and Islip to its eastern terminus in Oakdale
Oakdale, New York
Oakdale is a hamlet in Suffolk County, New York, United States. The population was 8,075 at the 2000 census. Oakdale is in the Town of Islip.- History :...

. East of Heckscher State Parkway
Heckscher State Parkway
The Heckscher State Parkway is an long parkway in Suffolk County, New York. The western terminus is at the Sagtikos State Parkway in West Islip, where it continues west as the Southern State Parkway. The eastern terminus is at the entrance to Heckscher State Park in Great River...

, NY 27A is lined with parkway style lampposts. At its terminus at NY 27 at the Oakdale Merge, NY 27A becomes County Route 85, then Main Street in Patchogue
Patchogue, New York
-Notable citizens:* Franc D'Ambrosio, Broadway Actor, best known for being the longest running Phantom in Phantom of the Opera. Graduated Pat-Med HS 1981* Michael Fagan, professional bowler...

, and County Route 80 east of Patchogue.

Geographically, NY 27A is the southernmost state route that, under normal state laws, can be employed by truck
Truck
A truck or lorry is a motor vehicle designed to transport cargo. Trucks vary greatly in size, power, and configuration, with the smallest being mechanically similar to an automobile...

s. However, some parts of Long Island's barrier beaches are south of this road and can only be reached by accessing the parkways, which trucks cannot normally use. Because of this, a conditional exemption is in place. A truck making a delivery to the beaches may employ the parkways, but only if they enter and exit no farther north than this road or its Nassau counterpart, former Nassau County Route 27A.

Designation and initial extension

The entirety of modern NY 27A east of Carman Mill Road was originally designated as part of NY 27
New York State Route 27
New York State Route 27 is an east–west long state highway extending from Interstate 278 in the New York City borough of Brooklyn to Montauk Point State Park on Long Island, New York, United States...

 in the mid-1920s. West of Carman Mill Road, NY 27 followed Merrick Road
Merrick Road
Merrick Road, named Merrick Boulevard inside New York City, is a road running from Jamaica, Queens, New York east through Merrick, New York to the line between Nassau and Suffolk Counties, where it becomes Montauk Highway. A bit of it at the east end is signed and maintained by the New York State...

 through southern Nassau County
Nassau County, New York
Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...

 to the New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

 line, where it ended. Ca. 1931, NY 27 was realigned between New York City and Oakdale
Oakdale, New York
Oakdale is a hamlet in Suffolk County, New York, United States. The population was 8,075 at the 2000 census. Oakdale is in the Town of Islip.- History :...

 to follow the Sunrise Highway. The Suffolk County
Suffolk County, New York
Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...

 portion of its former alignment on Merrick Road and Montauk Highway
Montauk Highway
Montauk Highway is one of the original through highways of Long Island, New York, extending from Jamaica, in the New York City borough of Queens to Montauk Point in Suffolk County, a distance of approximately 100 miles ....

 was designated as NY 27A. At the Nassau–Suffolk county line, NY 27A turned to follow County Line Road north to NY 27.

NY 27A was one of a handful of routes that was extended into New York City in mid-December 1934. Following the extension, it began at NY 1A
New York State Route 1A
New York State Route 1A was a state highway in New York City, running from the Holland Tunnel to U.S. Route 1 . It existed from 1934, when routes were first marked in New York City, until the 1960s.-History:...

 (Varick Street
Varick Street
Varick Street runs north-south in the Manhattan borough of New York City. Varick Street originates in TriBeCa, at the intersection of Leonard Street and West Broadway. It runs through the western portions of TriBeCa, Hudson Square and the West Village, where it merges with Seventh Avenue South...

) in Lower Manhattan
Lower Manhattan
Lower Manhattan is the southernmost part of the island of Manhattan, the main island and center of business and government of the City of New York...

 and followed Broome, Kenmare, and Delancey Streets east to the Williamsburg Bridge
Williamsburg Bridge
The Williamsburg Bridge is a suspension bridge in New York City across the East River connecting the Lower East Side of Manhattan at Delancey Street with the Williamsburg neighborhood of Brooklyn at Broadway near the Brooklyn-Queens Expressway...

 leading to Brooklyn
Brooklyn
Brooklyn is the most populous of New York City's five boroughs, with nearly 2.6 million residents, and the second-largest in area. Since 1896, Brooklyn has had the same boundaries as Kings County, which is now the most populous county in New York State and the second-most densely populated...

. After crossing the East River
East River
The East River is a tidal strait in New York City. It connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates Long Island from the island of Manhattan and the Bronx on the North American mainland...

, it went generally southeastward through Brooklyn on Grant Street, Bushwick Avenue, Highland Boulevard, Force Tube Avenue, Ridgewood Avenue, and Rockaway Boulevard. Force Tube and Ridgewood Avenues, both one way, eastbound-only streets, made up half of a one-way couplet that also utilized the westbound-only Eldert Lane and Etna Street. As a result, Force Tube and Ridgewood Avenues carried NY 27A eastbound while Eldert Lane and Etna Street handled NY 27A westbound.

In Queens
Queens
Queens is the easternmost of the five boroughs of New York City. The largest borough in area and the second-largest in population, it is coextensive with Queens County, an administrative division of New York state, in the United States....

, NY 27A was routed on Rockaway, Baisley, and Merrick Boulevards to the eastern borough line, where it continued eastward into Nassau County on the original alignment of NY 27 on Merrick Road. The route remained on Merrick Road to the Suffolk County line, where it joined its original alignment. NY 27 and NY 27A crossed paths in Rockville Centre
Rockville Centre, New York
Rockville Centre is a village located in Nassau County, New York, in the United States. As of the 2010 census, the village had a total population of 24,023. The town is made up of middle to upper middle class residents, most of the wealthier residents residing on the north side of town near the...

, where the Sunrise Highway intersected Merrick Road.

New York City

In the mid-1940s, NY 27A was rerouted within Brooklyn and Queens. It now began at the junction of Tillary Street and Flatbush Avenue (NY 27) in Brooklyn and followed Tillary, Jay, and Smith Streets to Atlantic Avenue, then continued on Atlantic Avenue and Hicks Street to the Gowanus Parkway. NY 27A was then routed on the Gowanus, Shore and Southern Parkways through southern Brooklyn and Queens. NY 27A, concurrent to NY 27 from the western extent of the Southern Parkway, continued to follow NY 27 and the Sunrise Highway to Rockville Centre in Nassau County, where it split from NY 27 to follow Merrick Road.

NY 27A was re-extended into Manhattan
Manhattan
Manhattan is the oldest and the most densely populated of the five boroughs of New York City. Located primarily on the island of Manhattan at the mouth of the Hudson River, the boundaries of the borough are identical to those of New York County, an original county of the state of New York...

 in the 1950s. Instead of leaving the Gowanus Parkway at Hicks Street, it continued north on the Gowanus Parkway and passed through the Brooklyn–Battery Tunnel under the East River. Once in Manhattan, it followed the West Side Elevated Highway
West Side Elevated Highway
The West Side Elevated Highway was an elevated section of Route NY-9A running along the Hudson River in the New York City borough of Manhattan to the tip of the island.It was an elevated highway, one of the first urban freeways in the world, and served as a...

 through the borough's West Side
West Side (Manhattan)
The West Side of Manhattan refers to the side of Manhattan Island which abuts the Hudson River and faces New Jersey. Fifth Avenue, Central Park, and lower Broadway separate it from the East Side. The major neighborhoods on the West Side are West Harlem, Morningside Heights, Manhattan Valley, Upper...

 to the Holland Tunnel
Holland Tunnel
The Holland Tunnel is a highway tunnel under the Hudson River connecting the island of Manhattan in New York City with Jersey City, New Jersey at Interstate 78 on the mainland. Unusual for an American public works project, it is not named for a government official, politician, or local hero or...

, where the Elevated Highway became NY 9A
New York State Route 9A
New York State Route 9A is a state highway in the vicinity of New York City, New York, United States. Its southern terminus is at the northern end of the Brooklyn–Battery Tunnel in New York City, where it intersects with both Interstate 478 and FDR Drive. The northern terminus of...

. On January 1, 1970, NY 27A was truncated to its current western terminus in Massapequa
Massapequa, New York
Massapequa is a hamlet located in the suburban Nassau County, New York. As of the 2010 census, the CDP had a total population of 21,685.Massapequa is located on the South Shore of Long Island....

. The portion of NY 27A's former routing north of the interchange between the Gowanus and Prospect Expressways became an extension of NY 27.

Suffolk County

East of Oakdale, NY 27 originally followed Montauk Highway to Montauk Point. NY 27A was extended eastward along Montauk Highway to Patchogue
Patchogue, New York
-Notable citizens:* Franc D'Ambrosio, Broadway Actor, best known for being the longest running Phantom in Phantom of the Opera. Graduated Pat-Med HS 1981* Michael Fagan, professional bowler...

 in the early 1950s after NY 27 was realigned to follow a new highway between Oakdale and Patchogue. A limited-access highway extension of NY 27 to Shirley
Shirley, New York
Shirley is a hamlet in Suffolk County, New York, United States. As of the 2000 census, Shirley population was 26,395....

 opened to traffic in the late 1950s, at which time NY 27A was extended eastward along NY 27's former routing to meet NY 27 in Shirley. Construction on a new alignment for NY 27 between NY 24
New York State Route 24
New York State Route 24 is an east–west state highway on Long Island in New York in the United States. The route is split into two segments, with the longest and westernmost of the two extending from Interstate 295 and NY 25 in the Queens Village section of the New York City...

 in Hampton Bays
Hampton Bays, New York
Hampton Bays is a hamlet in Suffolk County, New York, United States. The population was 12,236 at the 2000 census.Hampton Bays is in the Town of Southampton.-Geography:...

 and Montauk Highway near Water Mill began by 1961 and was completed ca. 1962. The former routing of NY 27 between the two locations became part of NY 27A, even though it did not connect to any other part of the route.

Work was underway by 1962 on an extension of the Patchogue–Shirley limited-access highway to the vicinity of Eastport
Eastport, New York
Eastport is a hamlet in Suffolk County, New York, United States. The population was 1,454 at the 2000 census.Eastport straddles the borders of the Towns of Brookhaven and Southampton....

. This roadway was completed as a realignment of NY 27 by 1964, allowing NY 27A to be extended once more along NY 27's old routing. NY 27A was also extended east along NY 27 to connect to the segment of NY 27A between Hampton Bays and Water Mill. Ownership and maintenance of Montauk Highway between Oakdale and the town of Southampton
Southampton (town), New York
The Town of Southampton is located in southeastern Suffolk County, New York, U.S., partly on the South Fork of Long Island. As of the United States 2000 Census, the town had a total population of 54,712...

 was gradually transferred from the state of New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 to Suffolk County
Suffolk County, New York
Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...

 during the 1960s and 1970s. The portion from the Patchogue village line east to NY 24 in Hampton Bays was turned over to the county on October 6, 1966, while the segment between NY 24 and Knoll Road was given to Suffolk County on February 15, 1968.

Although most of Montauk Highway between Patchogue and the village of Southampton
Southampton (village), New York
Southampton is a village in Suffolk County, New York, USA. The village is named after the Earl of Southampton. The Village of Southampton is in the southeast part of the county in the Town of Southampton...

 was now maintained by the county, NY 27A continued to follow the road eastward to NY 27 northeast of Southampton. It was finally cut back to its current eastern terminus in Oakdale on March 29, 1972, after ownership and maintenance of Montauk Highway between Oakdale and Patchogue was transferred from the state to the county. NY 27A's former routing is now County Route 80 from the east village line of Patchogue to Knoll Road, County Route 85 from Oakdale to the west village line of Patchogue, and NY 900W, an unsigned reference route, from Knoll Road to the west village line of Southampton at Tuckahoe Lane.

In 1969, the Suffolk County Department of Planning proposed a major reconstruction project of downtown Bay Shore
Bay Shore, New York
Bay Shore is a hamlet and a census-designated place located in the Town of Islip, Suffolk County, New York, USA. It is situated on the south shore of Long Island, adjoining the Great South Bay. Bay Shore celebrated its 300th anniversary in 2008. The population of the CDP was 23,852 at the time of...

 in cooperation with the New York State Department of Transportation
New York State Department of Transportation
The New York State Department of Transportation is responsible for the development and operation of highways, railroads, mass transit systems, ports, waterways and aviation facilities in the U.S...

. The project, dubbed the "Bay Shore Split", would reroute eastbound and westbound traffic on new alignments running to the north and south of Main Street (NY 27A) and convert Main Street into a pedestrian mall with parking garages at key locations. The plan was cancelled as a result of public opposition.

NY 27A Truck

NY 27A Truck was a truck route of NY 27A in that bypassed the hamlet of Center Moriches to the north. It followed the Moriches Bypass (Frowein Road) between Moriches
Moriches, New York
Moriches is a hamlet in Suffolk County, New York, United States. The population was 2,319 at the 2000 census.Moriches is served by the William Floyd School District....

 and East Moriches
East Moriches, New York
East Moriches is a hamlet in Suffolk County, New York, United States. The population was 4,550 at the 2000 census.East Moriches is in the Town of Brookhaven....

 and was co-designated as County Route 98
County Route 98 (Suffolk County, New York)
Suffolk County Road 98 is a county road in Southern-Central Suffolk County, New York. It runs east and west from Suffolk CR 80 in Moriches to Suffolk CR 80 in East Moriches...

 by Suffolk County
Suffolk County, New York
Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...

. NY 27A Truck ceased to exist after NY 27A was truncated on its eastern end to Oakdale
Oakdale, New York
Oakdale is a hamlet in Suffolk County, New York, United States. The population was 8,075 at the 2000 census. Oakdale is in the Town of Islip.- History :...

 in 1972.

The NY 27A Truck designation partially resurfaced during the early 1970s as "Temporary NY 27A Truck". It was routed along NY 24
New York State Route 24
New York State Route 24 is an east–west state highway on Long Island in New York in the United States. The route is split into two segments, with the longest and westernmost of the two extending from Interstate 295 and NY 25 in the Queens Village section of the New York City...

, NY 27
New York State Route 27
New York State Route 27 is an east–west long state highway extending from Interstate 278 in the New York City borough of Brooklyn to Montauk Point State Park on Long Island, New York, United States...

, and North Shore Road and served as a bypass for trucks around a reconstruction project along NY 27A between Hampton Bays
Hampton Bays, New York
Hampton Bays is a hamlet in Suffolk County, New York, United States. The population was 12,236 at the 2000 census.Hampton Bays is in the Town of Southampton.-Geography:...

 and Shinnecock Hills
Shinnecock Hills, New York
Shinnecock Hills is a hamlet in Suffolk County, New York, United States. The population was 1,749 at the 2000 census. It is the home of a leading golf club, Shinnecock Hills Golf Club. This is the highest point on Long Island's east end. At its highest point it is the only place on Long Island,...

.

Major intersections

External links

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