Henry Hudson Parkway

The Henry Hudson Parkway is an 10.95-mile (17.62 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. The northern terminus is at the Bronx–Westchester 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
Henry Hudson Parkway highlighted in red
Route information
Maintained by NYSDOT, NYCDOT, and NYC Parks
Length10.95 mi[1] (17.62 km)
9.93 mi (15.98 km) cosigned with NY 9A
Existed1937[2]–present
RestrictionsNo commercial vehicles
Major junctions
South end NY 9A (West Side Highway) in Hell's Kitchen
 
North end Saw Mill River Parkway / Mosholu Parkway in Yonkers
Location
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 description
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.

History
View northward in Riverdale, 1934
Beginning of Henry Hudson Parkway near 57th 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.[2]

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]

Future

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.[2]

Exit list
CountyLocationmi
[1][5][6]		kmExitDestinationsNotes
ManhattanRiverside South0.000.00– NY 9A south (Joe DiMaggio Highway) – Battery ParkContinuation south
9West 72nd Street / Riverside BoulevardNorthbound entrance only; exit closed on July 8, 2007[7]
Riverside Park0.310.5010West 79th Street / Boat BasinSigned as exits 10A (79th Street) and 10B (Boat Basin) northbound; exit number not signed southbound
1.141.8311West 95th Street / West 96th StreetAll movements via 96th Street except southbound exit; exit number not signed
Harlem2.273.6512West 125th StreetExit number not signed northbound
Hamilton Heights4.076.5513West 158th Street
Fort Washington Park4.727.6014 I-95 / US 1 / US 9 / West 178th Street – George Washington Bridge, Cross Bronx ExpresswayExit 1 on Trans-Manhattan Expressway, Southbound access via Riverside Drive
4.978.0015Riverside DriveNo southbound entrance; southbound exit is part of exit 14; no northbound access to Riverside Drive northbound
Fort Tryon Park6.4[8]10.316Fort Tryon Park, CloistersNorthbound exit and entrance
Inwood Hill Park6.7610.8817Dyckman Street
Spuyten Duyvil Creek
(Harlem River)		7.38–
7.60		11.88–
12.23		Henry Hudson Bridge ($7.00 Toll-by-Mail, $2.80 E-ZPass)
The BronxSpuyten Duyvil7.8412.6218Kappock StreetNo entrance ramps
8.2[8]13.219West 232nd Street
Riverdale8.6[8]13.820West 237th Street / West 239th StreetSigned for 237th Street southbound, 239th Street northbound
9.0[8]14.521West 246th StreetNo southbound entrance
9.4615.2222West 253rd Street / West 254th Street / Riverdale AvenueSigned for 253rd Street northbound, 254th Street southbound
Fieldston9.7[8]15.6–Fieldston RoadSouthbound entrance only
9.9315.9823 US 9 / NY 9A north (Broadway)Northern terminus of NY 9A concurrency; signed as exits 23A (south) and 23B (north) northbound
Van Cortlandt Park10.4516.8224 Mosholu Parkway south to I-87 south (Major Deegan Expressway)
10.9517.62– Saw Mill River Parkway north – YonkersContinuation into Westchester County
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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See also
  •  U.S. Roads portal
  •  New York City portal
  •  New York (state) portal

References
  1. "2014 Traffic Data Report for New York State" (PDF). New York State Department of Transportation. July 22, 2015. Retrieved January 14, 2020.
  2. Anderson, Steve. "Henry Hudson Parkway (NY 9A)". NYCRoads. Retrieved March 18, 2010.
  3. 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. "Bronx County Inventory Listing" (CSV). New York State Department of Transportation. August 7, 2015. Retrieved September 5, 2017.
  6. "New York County Inventory Listing" (CSV). New York State Department of Transportation. August 7, 2015. Retrieved September 5, 2017.
  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.
  8. Google (January 14, 2020). "Henry Hudson Parkway" (Map). Google Maps. Google. Retrieved January 14, 2020.
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