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Triborough Bridge

From Wikipedia, the free encyclopedia

Triborough Bridge
Triborough Bridge
Aerial view of the Triborough Bridge (left) and the Hell Gate Bridge (railroad bridge, right). Queens is in the foreground, across from Wards Island. The Triborough continues out of view along the length of the island and forks to reach both The Bronx and the island of Manhattan.
Carries 8 lanes of I-278
Crosses East River, Harlem River and Bronx Kill
Locale Manhattan, New York, Bronx, New York and Queens, New York
Maintained by Metropolitan Transportation Authority TBTA
Design Suspension bridge, Lift bridge and Truss bridge
Longest span 420.62 meters (1,380 feet) (Suspension span)
94.49 meters (310 feet) (Lift span)
116.74 meters (383 feet) (Truss span)
Total length 847.34 meters (2,780 feet) (Suspension span)
234.70 meters (770 feet) (Lift span)
487.68 meters (1,600 feet) (Truss span)
Width 29.87 meters (98 feet) (Suspension span)
Vertical clearance 14 feet 6 inches (4.4 m), but trucks onbound from Manhattan are limited to 13 feet 10 inches (4.2 m)
Clearance below 43.57 meters (143 feet) (Suspension span)
41.15 meters (135 feet) (when raised) (Lift span)
16.76 meters (55 feet) (Truss span)
AADT 200,000
Opening date July 11, 1936
Toll $4.50 (between any 2 boroughs per car in cash); discount available with E-ZPass

The Triborough Bridge is a complex of three bridges connecting the New York City boroughs of the Bronx, Manhattan, and Queens, using what were two islands, Ward's Island and Randall's Island as intermediate rights-of-way between the water crossings. These two islands have been consolidated by landfill.

The bridges span the Hell Gate (a tidal channel of the East River), Harlem River, and Bronx Kill. Construction was begun in 1930, but was soon sidetracked by the Great Depression. Using New Deal money, the project was resurrected in the early 1930s by Robert Moses and the bridge was opened to traffic on July 11, 1936. Its cost was greater than that of the Hoover Dam.

The structure used concrete from factories from Maine to Mississippi. To make the casings for pouring the concrete a whole forest in Oregon was cut down.[1]

The toll revenues from the Triborough Bridge and the other bridges operated by the Triborough Bridge and Tunnel Authority (TBTA) were and are enormous, amounting to USD$933.1 million in 2002. The money from the bridge pays for a portion of the public transit subsidy for the New York City Transit Authority and the commuter railroads. The bridge carries approximately 200,000 vehicles per day.

The bridge has sidewalks in all directions. The TBTA officially requires bicyclists to walk their bicycles across, but the signs stating this requirement are usually ignored and extremely unpopular among bicyclists citing very long distance of the bridge. Stairs on certain sidewalks impede handicapped access.

Following the September 11th attacks on New York and Washington, the government has prohibited people from taking photographs and videos on the premises of the bridge due to the fear that terrorist groups might study any potential photographs and videos in order to plot a terrorist attack on the bridge.

As of March 13, 2005, the crossing charge for a two-axle passenger vehicle is $4.50 charged between any two boroughs, with a $0.50 discount for E-ZPass users. The crossing charge for a motorcycle is $2.00 charged in each direction, with a $0.25 discount for E-ZPass users.

The bridge is owned by the City of New York and operated by the TBTA, an affiliate agency of the Metropolitan Transportation Authority (New York).

Contents

[edit] The three sections of the bridge

[edit] East River suspension bridge (I-278)

  • Length of main span: 1,380 feet (421 meters)
  • Length of each side span: 700 feet (213 meters)
  • Length, anchorage to anchorage: 2,780 feet (847 meters)
  • Width of bridge: 98 feet (30 meters)
  • Number of traffic lanes: 8 lanes
  • Height of towers above mean high water: 315 feet (96 meters)
  • Clearance at center above mean high water: 143 feet (44 meters)
  • Number of sidewalks: 1

[edit] Harlem River lift bridge (NY Reference Route 900G)

  • Length of main lift-truss span: 310 feet (94 meters)
  • Length of each side truss span: 230 feet (70 meters)
  • Length, anchorage to anchorage: 770 feet (235 meters)
  • Height of towers: 210 feet (64 meters)
  • Clearance of lift span above mean high water: 55 feet (17 meters)
  • Clearance of lift span in raised position: 135 feet (41 meters)
  • Number of traffic lanes: 6 lanes
  • Number of sidewalks: 2 (1 on each side)

[edit] Bronx Kills crossing (I-278)

  • Length of main truss span: 383 feet (117 meters)
  • Length of approach truss span: 1,217 feet (371 meters)
  • Length, anchorage to anchorage: 1,600 feet (488 meters)
  • Clearance of truss span above mean high water: 55 feet (17 meters)
  • Number of traffic lanes: 8 lanes
  • Number of sidewalks: 2 (1 on each side)


[edit] The Triborough Bridge in popular cuture

On the roadway of the bridge
Enlarge
On the roadway of the bridge
Harlem River lift span
Enlarge
Harlem River lift span
Bronx Kills span
Enlarge
Bronx Kills span
  • In a Law & Order-style introduction on Family Guy, random scenes of New York City are shown, including the Triborough Bridge.
  • On the final episode of Friends, Ross attempts to go to the airport to prevent Rachel from going to Paris, and Phoebe drives him over the Harlem Lift Span as they head to JFK Airport. They also stop at the toll booth.
  • Mitch Robbins (Billy Crystal) and his family drive over the bridge in the final scene of the film City Slickers.
  • The bridge is shown in several scenes of the film Frequency.

[edit] References

  1. ^ Robert Caro, The Power Broker, Vintage, 1974.

[edit] External links

Bridges and tunnels in New York City
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Bridges

Bayonne Bridge | Brooklyn Bridge | Bronx Whitestone Bridge | City Island Bridge | Cross Bay Veterans Memorial Bridge | George Washington Bridge | Goethals Bridge | Hell Gate Bridge | Henry Hudson Bridge | Joseph P. Addabbo Memorial Bridge | Kosciuszko Bridge | Madison Avenue Bridge | Manhattan Bridge | Marine Parkway-Gil Hodges Memorial Bridge | Outerbridge Crossing | Pulaski Bridge | Queensboro (59th Street) Bridge | Third Avenue Bridge | Throgs Neck Bridge | Triborough Bridge | Verrazano-Narrows Bridge | Williamsburg Bridge

Tunnels

Brooklyn-Battery Tunnel | Holland Tunnel | Lincoln Tunnel | Queens Midtown Tunnel

Operators

Triborough Bridge and Tunnel Authority | Metropolitan Transportation Authority | Port Authority of New York and New Jersey | New York City Department of Transportation | New York State Department of Transportation | Amtrak

Crossings of the East River
Upstream
Hell Gate Bridge
Triborough Bridge
(East River Suspension Span)

Downstream
Roosevelt Island Bridge
Crossings of the Harlem River
Upstream
Willis Avenue Bridge
Triborough Bridge
(Harlem Lift Bridge)

Downstream
Ward's Island Bridge
MTA Bridges and Tunnels
Bronx Whitestone Bridge | Brooklyn-Battery Tunnel | Cross Bay Veterans Memorial Bridge | Henry Hudson Bridge | Marine Parkway-Gil Hodges Memorial Bridge | Queens Midtown Tunnel | Throgs Neck Bridge | Triborough Bridge | Verrazano-Narrows Bridge
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