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The Henry Hudson Parkway is an 11.05-mile (17.78 km) parkway in New York City. The southern terminus is in Manhattan at 57th Street on the northbound side and 56th Street on the southbound side, where the parkway continues south as the West Side Highway.[3] It is often erroneously referred to as the West Side Highway throughout its entire course in Manhattan.[not verified in body] The northern terminus is at the BronxWestchester county boundary, where it continues north as the Saw Mill River Parkway. All but the northernmost mile of the road is co-signed as New York State Route 9A (NY 9A). In addition, the entirety of the parkway is designated New York State Route 907V (NY 907V), an unsigned reference route.[3]

Henry Hudson Parkway marker

Henry Hudson Parkway
Henry Hudson Parkway highlighted in red
Route information
Maintained by NYSDOT, NYCDOT, NYC Parks, MTA, Amtrak, and PANYNJ
Length11.05 mi[2] (17.78 km)
10.05 mi (16.17 km) cosigned with NY 9A
NY 9A from Hell's Kitchen
RestrictionsNo commercial vehicles
Major junctions
From NY 9A in Hell's Kitchen
North end Saw Mill River Parkway in Van Cortlandt Park
CountiesNew York, Bronx
Highway system

The owners of the parkway are the New York State Department of Transportation, New York City Department of Transportation, New York City Department of Parks and Recreation, Metropolitan Transportation Authority, Amtrak, and Port Authority of New York and New Jersey. The Henry Hudson Parkway was created by the Henry Hudson Parkway Authority, which was run by "master builder" Robert Moses. The highway itself was constructed from 1934–1937.

Route descriptionEdit

Henry Hudson Parkway in Upper Manhattan
The Henry Hudson Parkway in Riverdale

The Henry Hudson Parkway begins in Hell's Kitchen at 57th Street on the northbound side and 56th on the southbound side, which also serves as the north end of the West Side Highway and the last remaining section of the West Side Highway's predecessor, the Miller Highway.[3] The junction is numbered as exit 8, continuing the numbering scheme used on the West Side Highway. It heads northward along the west side of Manhattan, connecting to West 79th Street with a large interchange and to other surface streets with more intermittent exits along the way. The parkway continues in a northerly direction, running almost parallel to Riverside Drive north of West 158th Street. It passes under the Trans-Manhattan Expressway (I-95 and U.S. 1) and the George Washington Bridge as it continues its progression through Fort Washington Park, Fort Tryon Park, and Inwood Hill Park. It then runs northward across the Henry Hudson Bridge into the Bronx.

Upon entering the Bronx, the parkway passes through Spuyten Duyvil and Riverdale as it continues northward, edging slightly to the northeast. Between Exits 20 and 22, Riverdale Avenue is split into service roads along the parkway. At exit 23, NY 9A leaves the parkway for U.S. Route 9 (US 9) while the parkway enters Van Cortlandt Park. Soon after it enters the park, the parkway has an interchange with the Mosholu Parkway, which connects it to I-87. Less than a mile farther on, the parkway becomes the Saw Mill River Parkway as it enters Westchester County.


View northward in Riverdale, 1934
Beginning of Henry Hudson Parkway near 59th Street

The Parkway was completed on October 12, 1937, under New York master builder Robert Moses. It cost $109 million, twice as expensive as the $49 million Hoover Dam that was built in the same period. The Parkway was part of Moses's "West Side Improvement" and included covering the New York Central Railroad's West Side Line, creating the Freedom Tunnel. The covered portion is partially used for the highway and also expands the Riverside Park designed by Frederick Law Olmsted.[1]

On May 12, 2005, part of a retaining wall at Castle Village collapsed onto the northbound lanes of the parkway, just north of the George Washington Bridge, shutting it down shortly before rush hour. The clean-up began quickly, and the road re-opened on May 15.[4]


The Henry Hudson Parkway is a candidate for designation as a New York State Scenic Byway, the first in New York City. At the request of the Henry Hudson Parkway Task Force, in 2005 the New York Metropolitan Transportation Council approved funding to develop a comprehensive corridor management plan, a requirement for its designation.[1]

Exit listEdit

ManhattanRiverside South0.000.00  NY 9A south (Joe DiMaggio Highway) – Battery ParkContinuation beyond 72nd Street
9West 72nd Street / Riverside BoulevardNorthbound entrance only; exit closed on July 8, 2007[7]
Riverside Park0.20–
10West 79th Street – Boat BasinExit number not signed; separate exits for West 79th Street and Boat Basin northbound
1.292.0811West 95th Street (south) / West 96th Street (north)Interchange also includes northbound u-turn
12West 125th StreetExit number not signed southbound
Hamilton Heights4.00–
13West 158th Street
Fort Washington Park4.80–
14  I-95 (US 1-9) / West 178th Street – George Washington Bridge, Cross Bronx ExpresswayNo southbound signage for West 178th Street
15Riverside DriveSouthbound access is via exit 14
Fort Tryon Park6.4010.3016Fort Tryon Park, CloistersNorthbound exit and entrance
Inwood Hill Park6.60–
17Dyckman Street
Spuyten Duyvil Creek
(Harlem River Ship Canal)
Henry Hudson Bridge
($7.00 Toll-by-Mail, $2.80 E-ZPass)
The BronxSpuyten Duyvil7.9012.7118Kappock StreetNo entrance ramps
19West 232nd Street
Riverdale8.5513.7620West 237th Street (south) / West 239th Street (north)
21West 246th Street / West 250th Street (north)No southbound entrance
9.6415.5122West 254th Street (south) / West 253rd Street (north) / Riverdale Avenue
23   US 9 / NY 9A north (Broadway)Northern terminus of concurrency with NY 9A; signed as exits 23A (south) and 23B (north) northbound
Van Cortlandt Park10.30–
24   Mosholu Parkway south to I-87 south (Deegan Expressway)I-87 not signed northbound
11.0517.78  Saw Mill River Parkway northContinuation into Westchester County
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See alsoEdit


  1. ^ a b c Anderson, Steve. "Henry Hudson Parkway (NY 9A)". NYCRoads. Retrieved March 18, 2010.
  2. ^ a b "2011 Traffic Volume Report for New York State" (PDF). New York State Department of Transportation. September 25, 2012. p. 256. Retrieved April 22, 2013.
  3. ^ a b c New York State Department of Transportation (2003). LIST OF STATE ROUTES IN NEW YORK COUNTY (PDF). Retrieved January 15, 2017.
  4. ^ "Board of Inquiry Report – Castle Village Retaining Wall Collapse" (PDF). New York City Department of Buildings. April 2007. Archived from the original (PDF) on May 24, 2011. Retrieved April 2, 2010.
  5. ^ Google. "January 5, 2015" (Map). Google Maps. Google.
  6. ^
  7. ^ "Henry Hudson Exit Ramp at 72nd Street to be Closed" (Press release). New York City Department of Transportation. July 5, 2007. Retrieved April 1, 2010.

External linksEdit