Henry Hudson Parkway

in the background The Henry Hudson Parkway begins at 72nd Street, 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. The junction is numbered as exit 9, 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. Half a mile later, the parkway becomes the Saw Mill River Parkway as it enters Westchester County. ==History==

20th century , 1934 , near 57th Street In March 1934, the New York State Legislature approved the Henry Hudson Parkway. Work on the parkway began in February 1935; the project was funded by a $3.1 million bond issue. The portion of the parkway north of Dyckman Street opened on December 12, 1936, and the portion south of the George Washington Bridge opened on October 10, 1937. The section of Riverside Drive between the George Washington Bridge and Dyckman Street was incorporated into the northbound roadway of Henry Hudson Parkway. A parallel southbound roadway for the Henry Hudson Parkway was built between these two points; it opened in January 1938. The parkway ultimately cost $109 million, twice as expensive as the $49 million Hoover Dam that was built in the same period. The Parkway was part of Robert 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. In the late 1940s, new breakdown lanes were constructed in order to improve safety. However, these were not constructed throughout the entire highway. As part of a $2.5 billion statewide bond issue in 1971, there was also a proposal to widen the Henry Hudson Parkway south of the George Washington Bridge to an eight-lane expressway in 1971. Local politicians opposed the proposal because it would require seizing parts of Riverside Park. The widening was canceled after state legislators introduced an amendment to prevent the seizure of any parkland. 21st century 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. 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. ==Exit list==