|Location||15th Street at the West Side Highway, Manhattan, New York City, New York|
|Governing body||Hudson River Trust|
|NRHP Reference #||04000821|
|Added to NRHP||August 11, 2004|
Pier 57 is a long pier built on floating concrete caissons in the Hudson River in Manhattan, New York City. Built in 1952, it is located near the end of 15th Street on the West Side Highway, just south of the Chelsea Piers sports complex.
It is notable for being built on floating concrete caissons. Constructed near Haverstraw, New York by Emil Praeger who had designed similar piers in World War II, they were floated down the Hudson.
Until 2003, Pier 57 housed the Hudson Pier Depot for the New York City Transit Authority (NYCTA).
About one year after the NYCTA vacated the pier, Pier 57 was temporarily utilized as a detention center during the 2004 Republican National Convention, when approximately 1,200 anti-RNC protesters were arrested and sent to a makeshift detention/processing center at Pier 57. Over 1,800 were arrested during the entire event. Medical activists reportedly treated many people held at Pier 57 for chemical burns, rashes, and infections that resulted from direct, prolonged exposure to the motor oil, asbestos, and other contaminants from its days as a bus garage. 
Since 2004, the pier has been completely disused. Proposals for future usage have included an extension of the Chelsea Piers sports complex or Leonardo at Pier 57, an Italian cultural center operated by Cipriani S.A.. 
- "Pier 57’s construction was an engineering marvel". Thevillager.com. Retrieved 2009-07-16.
- News article on Newstandardnews.net
- "Images and videos on". Thememoryhole.com. Retrieved 2009-07-16.
- "Various materials on the New York Civil Liberties Union website". Nyclu.org. Retrieved 2009-07-16.
- "Trust considers two plans for Pier 57". Downtownexpress.com. Retrieved 2009-07-16.
- "Super Pier Almost Floats." Popular Mechanics, February 1952, pp. 114-115.
- Hudson River Park
- RNC '04 Ordeal of Erin Starr's Daughter
- RNC '04 Ordeal of Eric Corley