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West Street, 11 Avenue, 12 Avenue, Henry Hudson Parkway, Broadway, Ashburton
Avenue, Saw Mill River Road, Briarcliff-Peekskill Parkway, South Riverside
Avenue, North Riverside Avenue, Albany Post Road
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Direction: North/South
Southern Terminus: FDR Drive and Battery Tunnel (I-478) in Manhattan
Northern Terminus: Briarcliff-Peekskill Parkway (US 9) in Peekskill
NY 9A begins at the Battery in Manhattan. The southern section was originally a
limited-access highway called the West Side Highway. This highway collapsed, and
NY 9A was rerouted along West Street, 11 Avenue, and 12 Avenue. This section is
a large two-way divided boulevard with traffic lights that runs along the West
Side of Manhattan. It has certain intersections signed as exits with exit
numbers. Further north in Manhattan, NY 9A becomes the Henry Hudson Parkway, a
limited-access highway for noncommercial vehicles only. It runs north through
Manhattan past the George Washington Bridge (I-95). At the northern end of
Manhattan, the Henry Hudson Parkway crosses the Harlem River to the Bronx on the
Henry Hudson Bridge. It continues north through the Bronx.
Near the Bronx-Westchester border, NY 9A splits off from the Henry Hudson Parkway
and is multiplexed with US 9 along Broadway. Slightly north of the
Bronx-Westchester border, NY 9A splits off from US 9 and runs east along Ashburton
Avenue for a short distance. It is then routed north through Westchester along
Saw Mill River Road and the Briarcliff-Peekskill Parkway to US 9 in Ossining.
It is multiplexed with US 9 along the Briarcliff-Peekskill Parkway for a short
distance. It splits off and runs along South Riverside Avenue, North Riverside
Avenue, and Albany Post Road, the former route of US 9 prior to the construction
of the Briarcliff-Peekskill Parkway. It ends at the Briarcliff-Peekskill Parkway
(US 9) in Peekskill.
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