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New York State Route 9A

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New York State Route 9A (NY 9A) is a state highway in the vicinity of New York City in the United States. Its southern terminus is at Battery Place near the northern end of the Brooklyn–Battery Tunnel in New York City, where it intersects with both the unsigned Interstate 478 (I-478) and FDR Drive. The northern terminus of NY 9A is at U.S. Route 9 (US 9) in Peekskill. It is predominantly an alternate route of US 9 between New York City and Peekskill; however, in New York City, it is a major route of its own as it runs along the West Side Highway and Henry Hudson Parkway. It is also one of only two signed New York State routes in Manhattan (the other is NY 25). In northern Westchester County, NY 9A follows the Briarcliff–Peekskill Parkway.

New York State Route 9A marker
New York State Route 9A
Map
NY 9A highlighted in red
Route information
Auxiliary route of US 9
Maintained by NYSDOT, NYCDOT, MTAB&T and the City of Yonkers
Length47.25 mi[1] (76.04 km)
Existed1930[2]–present
Component
highways		 Henry Hudson Parkway from Riverside South to Riverdale
RestrictionsNo commercial vehicles between exits 8 and 23
Major junctions
South end I-478 / FDR Drive / Battery Place in Battery Park City
Major intersections
North end US 9 in Peekskill
Location
CountryUnited States
StateNew York
CountiesNew York, Bronx, Westchester
Highway system
← US 9→ NY 9B
← US 6NY 6A→ NY 6B

The origins of NY 9A date back to the 1920s when an alternate route of then-NY 6 from Yonkers to Tarrytown was designated as NY 6A. NY 6 was redesignated as US 9 in 1927; however, NY 6A was not renumbered to NY 9A until the 1930 renumbering of state highways in New York. NY 9A was extended south into New York City in 1934 and north to Ossining in the late 1930s. In 1933, the Briarcliff–Peekskill Parkway opened as NY 404. All of NY 404 was incorporated into an extended NY 9A on January 1, 1949. NY 9A was extended northward to Peekskill in 1967 following the completion of the Croton Expressway and southward to the Brooklyn–Battery Tunnel in the mid-1990s.

Route description

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Further information: West Side Highway and Henry Hudson Parkway
 
NY 9A northbound at 52nd Street in Manhattan

NY 9A begins in Lower Manhattan at Battery Place near the north end of the Brooklyn–Battery Tunnel (unsigned I-478) and heads north on the West Side Highway and Henry Hudson Parkway, crossing US 9 for the first time at the east end of the George Washington Bridge. After crossing into the Bronx via the Triborough Bridge and Tunnel Authority-owned Henry Hudson Bridge, NY 9A proceeds to leave the parkway at exit 23, joining US 9 on Broadway.[3] The portions of NY 9A between Lower Manhattan and 72nd Street, and from 125th Street to the New York City line (with the exception of the Henry Hudson Bridge) are owned by the New York State Department of Transportation, the portion between 72nd and 125th Streets is owned by the New York City Department of Parks & Recreation and the entire highway within city limits is maintained on a daily basis by the New York City Department of Transportation. The concurrency between US 9 and NY 9A runs for 2.87 miles (4.62 km) within the city of Yonkers.[1] All of NY 9A within Yonkers is maintained by the city.[4]

 
NY 9A and NY 100 southbound in Briarcliff Manor

NY 9A separates from US 9 along Ashburton Avenue and heads north as Saw Mill River Road. It parallels the Saw Mill River Parkway through Ardsley and Elmsford, to the west side of Hawthorne. The route meets the southbound New York State Thruway (I-87) at a partial interchange and later meets I-287 (the Cross Westchester Expressway) at a full interchange that provides a route to the northbound Thruway (I-87).[5] NY 100 merges with NY 9A to form a 3.11-mile (5.01 km) concurrency[1] carrying the names Saw Mill River Road and Briarcliff–Peekskill Parkway, parallel to the Taconic State Parkway. NY 9A exits off this highway along the Briarcliff–Peekskill Parkway, while NY 100 continues straight as Saw Mill River Road. NY 9A merges to form a brief concurrency with US 9 as the Croton Expressway in Ossining just south of the Croton River.[5]

The second concurrency between US 9 and NY 9A runs for 1.10 miles, with NY 9A leaving the Croton Expressway at NY 129 in Croton-on-Hudson. The highway heads north along Riverside Avenue and eventually joins old Albany Post Road. After crossing US 9 once more in Cortlandt, NY 9A ends at the Welcher Avenue interchange in southern Peekskill.[5]

History

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Origins

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Prior to the establishment of the U.S. Highway System, US 9 was designated as NY 6. An alternate route from Yonkers to Tarrytown was assigned the NY 6A designation by 1926. This ran along the present alignment of NY 9A from Yonkers to north of Elmsford, where it turned west on Old Saw Mill River Road, Neperan Road, County House Road and Bedford Road to end at NY 6 in Tarrytown.[6] NY 6 was redesignated as US 9 when U.S. Highways were first posted in New York in 1927; however, NY 6A was not renumbered at this time.[7] It was finally renumbered to NY 9A as part of the 1930 renumbering of state highways in New York.[2]

 
Tarrytown, including US 9 and NY 9A, in 1938.

New York City initially did not mark numbered routes within its limits.[8] In 1932, the New York Automobile Club drafted a plan establishing alignments for several routes through the city. In this plan, NY 9A went south through the Bronx and into Manhattan on Broadway while US 9 used Riverdale Avenue north of 230th Street. As a result, the two routes would have had a short concurrency across Spuyten Duyvil Creek. NY 9A would have split to the south on Tenth Avenue at 218th Street in order to join the Harlem River Drive via Nagle Avenue and Dyckman Street. From there it would head west on 155th Street to Amsterdam Avenue, where it would head south to 79th Street, heading west there to rejoin US 9 at Riverside Drive. US 9 would have continued south through lower Manhattan to Staten Island via the Staten Island Ferry; however, it is unclear whether NY 9A would have continued south with US 9 to lower Manhattan.[9]

The New York Automobile Club released another plan in 1933. This plan made no changes to NY 9A; however, US 9 was changed to use Broadway all the way through the Bronx and to travel to New Jersey by way of the Holland Tunnel.[10] In the final plan implemented in mid-December 1934, no route was assigned to the Harlem River Drive–Amsterdam Avenue corridor. Instead, NY 9A used what had been planned as US 9, splitting at Broadway and Dyckman Street. NY 9A ran south along the west side of Manhattan on Riverside Drive and the West Side Elevated Highway (detouring around an unfinished section via 57th Street, Eleventh Avenue and 48th Street) to end at the entrance and exit plazas of the Holland Tunnel. US 9 was shifted northward to enter New Jersey via the George Washington Bridge.[8]

Westchester County

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In Westchester County, Saw Mill River Road originally followed the Saw Mill River Parkway corridor from Eastview to Hawthorne. This section of Saw Mill River Road gained a number c. 1931, becoming part of NY 142, a route that began at NY 100 on the Greenburgh–Mount Pleasant town line and followed Grasslands Road, NY 9A, and Saw Mill River Road north to Hawthorne, where it rejoined NY 100.[11][12] The route went unchanged until it was removed c. 1938.[13][14] Its former routing was split into two routes—an extended NY 141 north of NY 9A and the new NY 100C along Grasslands Road—by 1940.[15] NY 9A was extended northward c. 1939 from Tarrytown to Archville, a small hamlet midway between Tarrytown and Ossining, by way of Sleepy Hollow Road.[16][17]

Farther north, a new limited-access parkway was built around Ossining from Saw Mill River Road (NY 100) in Briarcliff Manor to US 9 north of Ossining. The parkway, known as the Briarcliff–Peekskill Parkway, was completed c. 1933 and initially designated as NY 404.[18][19] On January 1, 1949, NY 9A was altered to continue north along a slightly realigned Saw Mill River Road from NY 100C near Elmsford to the south end of the Briarcliff–Peekskill Parkway in Briarcliff Manor. At this point, NY 9A left Saw Mill River Road and followed the parkway to its end at US 9, supplanting NY 404. The realignment created a 3-mile (5 km) overlap between NY 9A and NY 100 from Hawthorne to Briarcliff Manor and resulted in the truncation of NY 141 back to its previous terminus in Hawthorne.[20]

 
1974 photo of the collapsed section of the West Side Elevated Highway at 14th Street

Construction on the Croton Expressway, the only piece of the failed Hudson River Expressway project that was ever built, began in the mid-1960s.[21][22] It became part of a realigned US 9 when it was completed by 1967. The former surface routing of US 9 along Albany Post Road between Croton-on-Hudson and Buchanan became a northward extension of NY 9A, which reached the old alignment by way of an overlap with US 9 from the north end of the Briarcliff–Peekskill Parkway to Croton-on-Hudson.[22]

New York City

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NY 9A end sign approaching its southern terminus at Battery Place in Battery Park City
Further information: Henry Hudson Parkway, West Side Elevated Highway, and West Side Highway

As the Henry Hudson Parkway replaced Riverside Drive in the mid-1930s, NY 9A was moved onto it, eventually using the new parkway to where it crossed US 9 (Broadway) in the Bronx. Here, NY 9A exited the parkway and ran concurrent with US 9 to the split in Yonkers.[14][23] The Brooklyn–Battery Tunnel connecting Manhattan's Battery Park to Brooklyn was completed in 1950.[24] By 1960, an extension of the West Side Elevated Highway south to the Manhattan tunnel portal became part of NY 27A,[25] which had ended in Brooklyn prior to the construction of the tunnel.[26] On January 1, 1970, NY 27A was truncated on its western end to eastern Nassau County while NY 27 was extended northward over NY 27A's former routing through the Battery Tunnel and the West Side Elevated Highway.[27]

However, by 1973, NY 27 had been cut back to its interchange with the Gowanus Expressway in Brooklyn while unsigned I-478 was assigned to both the Battery Tunnel and all of the West Side Elevated Highway south of the Lincoln Tunnel. NY 9A was cut back to the Lincoln Tunnel as a result.[28][29] The extension of I-478 into Manhattan was eliminated following the collapse of part of the Elevated Highway in 1973,[30] an event which led to the demolition of the highway south of 59th Street. Demolition was completed in 1989.[31] NY 9A was shifted onto 12th Avenue, one of the surface streets that the Elevated Highway had run atop of, but was otherwise unaffected as the route's south end was initially kept at the Lincoln Tunnel.[32][33]

In the mid-1990s, NY 9A was extended south to the Battery Tunnel by way of 12th Avenue and two other streets the Elevated Highway had previously run atop of, West Street and 11th Avenue.[33][34] Construction began in early 1996 on a project to convert the section of NY 9A south of 59th Street into the West Side Highway, a six-lane urban boulevard with a parkway-style median and decorative lightposts. The first of the project's seven segments—between Clarkson and Horatio streets in the Greenwich Village neighborhood—was completed in 1998.[35] Completion of the project was originally set for October 2001; however, it was delayed for years due to damage caused by the September 11 attacks.[36] It was finished by 2014.[37]

 
Satellite view of Ground Zero after 9/11, with NY 9A (West St.) on the left covered with debris.

After the 9/11 attacks, the area and streets surrounding the World Trade Center, including NY 9A, was damaged and covered with debris when the towers collapsed, subsequently closing the highway and all streets at ground zero. During the construction of the new World Trade Center, both sides of the highway was narrowed with solid lines for lanes, indicating to drivers not to change lanes.[38]

Major intersections

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CountyLocationmi[1][39]kmExitDestinationsNotes
ManhattanBattery Park0.000.00Battery PlaceSouthern terminus
Battery Park City0.100.161 
  FDR Drive north (Battery Park Underpass)		Interchange; southbound exit and northbound entrance; southern terminus of FDR Drive
0.20–
0.40		0.32–
0.64		2 
  Hugh L. Carey Tunnel (I-478 south) to I-278 – Brooklyn		E-ZPass or Tolls by Mail
Tribeca1.452.333 
 
  Canal Street to I-78 west (Holland Tunnel) – New Jersey
Greenwich Village2.433.91410th Avenue – Meat Market
Chelsea3.325.345 
 
  West 30th Street to NY 495 west (Lincoln Tunnel) – New Jersey		Lincoln Tunnel exit for cars
Hell's Kitchen4.006.446 
 
  West 40th Street / West 42nd Street to NY 495 west (Lincoln Tunnel) – New Jersey		Lincoln Tunnel exit for all vehicles
4.667.507West 56th Street / West 57th StreetExit number not signed southbound
4.907.89Southern end of freeway section
8West 59th Street – Ship TerminalNorthbound exit only; all trucks must exit
5.428.729West 72nd StreetNorthbound entrance only
Transition between West Side Highway and Henry Hudson Parkway
Riverside Park5.739.2210West 79th Street – Boat BasinSigned as exits 10A (79th Street) and 10B (Boat Basin) northbound; exit number not signed southbound
6.5610.5611West 95th StreetSouthbound exit only; exit number not signed
West 96th StreetNo southbound exit; exit number not signed
Harlem7.6912.3812West 125th StreetExit number not signed northbound
Hamilton Heights9.4915.2713West 158th Street
Fort Washington Park10.1416.3214   I-95 / US 1-9 (George Washington Bridge) / Riverside Drive / West 178th Street – Cross Bronx ExpresswayExit 1A on I-95; no northbound access to Riverside Drive; West 178th Street not signed southbound
10.3916.7215Riverside Drive southNorthbound exit and entrance
Fort Tryon Park11.819.016Fort Tryon Park, CloistersNorthbound exit and entrance
Inwood Hill Park12.1819.6017Dyckman Street
Spuyten Duyvil Creek
(Harlem River)		12.80–
13.02		20.60–
20.95		Henry Hudson Bridge (toll; E-ZPass or Tolls by Mail)
The BronxSpuyten Duyvil13.2621.3418Kappock StreetNo entrance ramps
13.621.919West 232nd Street
Riverdale14.022.520West 237th Street / West 239th StreetSigned for 237th Street southbound, 239th Street northbound
14.423.221West 246th StreetNo southbound entrance
14.8823.9522West 253rd Street / West 254th Street / Riverdale AvenueSigned for 253rd Street northbound, 254th Street southbound
Fieldston15.3524.7023 
  
  US 9 south (Broadway) / Henry Hudson Parkway north – Yonkers		Southern end of US 9 concurrency; northern end of H.H. Parkway concurrency; all trucks must exit
Northern end of freeway section
WestchesterYonkers18.2129.31 
  US 9 north (Broadway) – Hastings-on-Hudson		Northern end of US 9 concurrency
 
  
  
  
  Saw Mill River Parkway north to I-87 / New York Thruway / Sprain Brook Parkway		Access to Saw Mill Parkway via Rossiter Avenue; access to I-87/Sprain Parkway via Tuckahoe Road
Hastings-on-Hudson 
 
  To Saw Mill River Parkway north		Access via Farragut Avenue
Dobbs Ferry 
  To Saw Mill River Parkway		Access via Lawrence Street
Ardsley 
  I-87 south (New York Thruway) – New York City		Exit 7 on I-87 / Thruway
 
  To Saw Mill River Parkway		Access via Ashford Avenue
Greenburgh25.5841.17 
  NY 100B east – White Plains, Greenburgh		Western terminus of NY 100B
Elmsford28.1345.27  NY 119 (East Main Street) – White Plains, Tarrytown
28.4145.72  I-287 (Cross Westchester Expressway) – White Plains, Rye, Tappan Zee BridgeExit 2 on I-287
Greenburgh–Mount Pleasant
town line		29.5447.54 
  
  NY 100C east / Old Saw Mill River Road to Saw Mill River Parkway		Interchange; western terminus of NY 100C; former routing of NY 9A; Saw Mill Parkway not signed northbound
Mount Pleasant30.9449.79 
  Saw Mill River Parkway north – Katonah, Brewster		Exit 25 on Saw Mill River Parkway
Hawthorne32.0051.50Southern end of limited-access section
32.1051.66– 
  
  
  
  NY 100 south / NY 141 north to Bronx River Parkway / Sprain Brook Parkway – Hawthorne, Thornwood		Southern end of NY 100 concurrency; southern terminus of NY 141
Mount Pleasant32.2251.85– 
  Saw Mill River Parkway south – New York City		Southbound exit only
33.3553.67–  NY 117 – Pleasantville, Sleepy Hollow
33.9054.56– 
  Taconic State Parkway south – New York City		Southbound exit and northbound entrance; exit 5 on Taconic State Parkway
Briarcliff Manor35.1056.49–Pleasantville Road
35.4056.97– 
  NY 100 north		Northern end of NY 100 concurrency
35.7057.45–North State RoadAt-grade intersection
36.4058.58–Chappaqua RoadAt-grade intersection
Village of Ossining36.9059.38–  NY 133 – Ossining, Millwood
37.2059.87–Ryder RoadSouthbound exit and entrance
Town of Ossining38.2061.48–  NY 134 – OssiningAt-grade intersection
38.4061.80–Hawkes Avenue (NY 134)Northbound exit and entrance
39.0062.76–Cedar LaneNorthbound exit and entrance
39.5063.57–Shady Lane Farm Road – OssiningNorthbound exit only
39.7063.89– 
  US 9 south – Tarrytown		No northbound exit; southern end of US 9 concurrency
–Croton River RoadNorthbound exit and entrance
Croton-on-Hudson40.4065.02–  Croton Point Avenue – Croton–Harmon Station
41.1066.14– 
  US 9 north – Peekskill, Yorktown		Northern end of US 9 concurrency
Northern end of limited-access section
41.2066.30 
  NY 129 east		Western terminus of NY 129
42.2067.91  US 9 / Senasaqua Road – Peekskill, TarrytownInterchange
Cortlandt44.3071.29  US 9 – Peekskill, TarrytownInterchange
Peekskill47.9077.09  US 9 – Bear Mountain Bridge, TarrytownInterchange; northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

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References

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  1. ^ a b c d "2008 Traffic Data Report for New York State" (PDF). New York State Department of Transportation. June 16, 2009. pp. 106–107. Retrieved December 7, 2009.
  2. ^ a b Automobile Legal Association (ALA) Automobile Green Book, 1930–31 and 1931–32 editions, (Scarborough Motor Guide Co., Boston, 1930 and 1931). The 1930–31 edition shows New York state routes prior to the 1930 renumbering
  3. ^ 2008 Road Atlas (Map). American Map. p. 80.
  4. ^ County and State Roads and Parks (PDF) (Map). Westchester County Department of Public Works. 2009. Archived from the original (PDF) on December 29, 2009. Retrieved December 7, 2009.
  5. ^ a b c "overview map of NY 9A" (Map). Google Maps. Retrieved April 9, 2013.
  6. ^ Official Map Showing State Highways and other important roads (Map). Cartography by Rand McNally and Company. State of New York Department of Public Works. 1926.
  7. ^ Automobile Blue Book. Vol. 1 (1927 ed.). Chicago: Automobile Blue Book, Inc. 1927. This edition shows U.S. Routes as they were first officially signed in 1927.
  8. ^ a b "Mark Ways in the City". The New York Times. December 16, 1934. p. XX12.
  9. ^ "Through Routes Mapped". The New York Times. March 20, 1932. p. XX6.
  10. ^ "Routes Through New York City". The New York Times. November 12, 1933.
  11. ^ Road Map of New York (Map). Cartography by General Drafting. Standard Oil Company of New York. 1930.
  12. ^ New York (Map). Cartography by H.M. Gousha Company. Kendall Refining Company. 1931.
  13. ^ Shell Road Map – New York (Map). Cartography by H.M. Gousha Company. Shell Oil Company. 1937.
  14. ^ a b New York Road Map for 1938 (Map). Cartography by General Drafting. Esso. 1938.
  15. ^ New York Info-Map (Map). Cartography by Rand McNally and Company. Gulf Oil Company. 1940.
  16. ^ Thibodeau, William A. (1938). The ALA Green Book (1938–39 ed.). Automobile Legal Association.
  17. ^ New York (Map). Cartography by General Drafting. Standard Oil Company. 1939.
  18. ^ Federal Highway Administration (2012). "NBI Structure Number: 1006210". National Bridge Inventory. Federal Highway Administration.
  19. ^ Texaco Road Map – New York (Map). Cartography by Rand McNally and Company. Texas Oil Company. 1934.
  20. ^ "State Announces Changes in County; Routes 28 and 209". The Kingston Daily Freeman. Kingston, New York. December 9, 1948. p. 1. Retrieved August 20, 2014 – via Newspapers.com.  
  21. ^ New York and Metropolitan New York (Map). Cartography by Rand McNally and Company. Sinclair Oil Corporation. 1964.
  22. ^ a b Gousha Road Atlas (Map). H.M. Gousha Company. 1967. Retrieved December 29, 2009.
  23. ^ Road Map & Historical Guide – New York (Map). Cartography by Rand McNally and Company. Sun Oil Company. 1935.
  24. ^ Falk, Sam (May 25, 1950). "Tube to Brooklyn Will Open Today". The New York Times. p. 30. Retrieved December 29, 2009.
  25. ^ New York and New Jersey Tourgide Map (Map). Cartography by Rand McNally and Company. Gulf Oil Company. 1960.
  26. ^ New York (Map). Cartography by Rand McNally and Company. Socony-Vacuum Oil Company. 1950.
  27. ^ State of New York Department of Transportation (January 1, 1970). Official Description of Touring Routes in New York State (PDF). Retrieved December 29, 2009.
  28. ^ New York (Map) (1973 ed.). Cartography by H.M. Gousha Company. Shell Oil Company. 1973.
  29. ^ Central Park Digital Raster Quadrangle (Map). 1:24,000. New York State Department of Transportation. 1975. Retrieved December 28, 2009.
  30. ^ Perlmutter, Emanuel (December 17, 1973). "Indefinite Closing Is Set For West Side Highway; Northbound Road Closed". The New York Times. p. 41. Retrieved December 29, 2009.
  31. ^ Levine, Richard (January 6, 1989). "Highway's Demise: Nightmare for Drivers". The New York Times. p. B1. Retrieved December 29, 2009.
  32. ^ New York (Map). Rand McNally and Company. 1985. ISBN 0-528-91040-X.
  33. ^ a b 1996 Traffic Volume Report for New York State, New York State Department of Transportation, p. 30
  34. ^ New York (Map). Rand McNally and Company. 1995. ISBN 0-528-96764-9.
  35. ^ Stamler, Bernard (June 21, 1998). "Neighborhood Report: West Side; Route 9A: Long Overdue but Ahead of Schedule". The New York Times. p. 145. Retrieved December 29, 2009.
  36. ^ "Governor, Mayor Open West Street Promenade South" (Press release). New York State Department of Transportation. July 7, 2006. Retrieved April 9, 2013.
  37. ^ "9A West Street Promenade". New York State Department of Transportation. Retrieved April 9, 2013.
  38. ^ "Route 9A Reconstruction". www.stantec.com. Retrieved 2024-06-28.
  39. ^ "New York State Route 9A" (Map). Google Maps. Retrieved January 9, 2016.
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