Roosevelt Island Bridge
Encyclopedia
The Roosevelt Island Bridge is a lift bridge
Lift bridge
A vertical-lift bridge or lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck....

 that connects Roosevelt Island
Roosevelt Island
Roosevelt Island, known as Welfare Island from 1921 to 1973, and before that Blackwell's Island, is a narrow island in the East River of New York City. It lies between the island of Manhattan to its west and the borough of Queens to its east...

 to Astoria
Astoria, Queens
Astoria is a neighborhood in the northwestern corner of the borough of Queens in New York City. Located in Community Board 1, Astoria is bounded by the East River and is adjacent to three other Queens neighborhoods: Long Island City, Sunnyside , and Woodside...

 in Queens, crossing the East Channel of the East River
East River
The East River is a tidal strait in New York City. It connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates Long Island from the island of Manhattan and the Bronx on the North American mainland...

. It is the sole route to the island for vehicular and foot traffic (without using public transportation).

Construction of the bridge began on March 17, 1952, at a cost of $6.5 million. It opened on May 18, 1955, as the Welfare Island Bridge. The name was changed to the Roosevelt Island Bridge in 1973.

When the bridge is open it provides ships with 100 feet (30.5 m) of vertical clearance. It is 40 feet (12.2 m) wide, and its total length, including approaches, is 2877 feet (876.9 m). The main span is 418 feet (127.4 m).

Before the bridge was constructed, the only way vehicles could access Roosevelt Island was via an elevator on the Queensboro Bridge
Queensboro Bridge
The Ed Koch Queensboro Bridge, also known as the 59th Street Bridge – because its Manhattan end is located between 59th and 60th Streets – or simply the Queensboro Bridge, is a cantilever bridge over the East River in New York City that was completed in 1909...

.

The Roosevelt Island Bridge provides direct access to the Motorgate Parking Garage, which was designed to minimize vehicular traffic on the island. The garage was completed in 1974 and later expanded in 1990.

In 2001, the New York City Department of Transportation
New York City Department of Transportation
The New York City Department of Transportation is responsible for the management of much of New York City's transportation infrastructure...

 considered converting the Roosevelt Island Bridge into a fixed bridge to reduce the cost of its maintenance. The bridge is rarely opened, because most vessels passing by Roosevelt Island use the West Channel of the East River. Most of the bridge openings occur in September during the General Assembly
United Nations General Assembly
For two articles dealing with membership in the General Assembly, see:* General Assembly members* General Assembly observersThe United Nations General Assembly is one of the five principal organs of the United Nations and the only one in which all member nations have equal representation...

 at the United Nations
United Nations headquarters
The headquarters of the United Nations is a complex in New York City. The complex has served as the official headquarters of the United Nations since its completion in 1952. It is located in the Turtle Bay neighborhood of Manhattan, on spacious grounds overlooking the East River...

 when the West Channel is closed for security reasons.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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