Bridgehunter.com | Triborough Lift Bridge

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Triboro Lift Bridge

Viewed from the southwest along the East River in March, 2005

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Overview: Vertical lift bridge over Harlem River between Manhattan and Randall's Island in New York
Location: New York City, New York County, New York
Status: Open to six lanes of traffic
History: Built 1936; rehabilitated 1967
Builders: - Arthur I. Perry
- Gustav Lindenthal
- Othmar Ammann of Feuerthalen, Switzerland
Design: Vertical lift Warren through truss. This is the westernmost component of the massive Triboro Bridge complex, which also includes a fixed truss span into the Bronx, a suspension span into Queens and a viaduct across Randalls and Wards Islands to connect the whole thing together.
Dimensions: Length of largest span: 315.0 ft.
Total length: 4,594.4 ft. (0.9 mi.)
Deck width: 69.6 ft.
Vertical clearance above deck: 14.5 ft.
Approximate latitude, longitude: +40.80056, -73.92833 (decimal degrees)
40°48'02" N, 73°55'42" W (degrees°minutes'seconds")
Approximate UTM coordinates: 18/590400/4517169 (zone/easting/northing)
USGS topographic map: Central Park
Inventory numbers: NY 5521209 (New York State bridge identification number)
BH 26446 (Bridgehunter.com ID)
Inspection (as of 11/2010): Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 22.2 (out of 100)
Average daily traffic (as of 2011): 85,000

Update Log

July 15, 2008: New photos from Michael Minn

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Comments

Triborough Lift Bridge

Posted August 4, 2007, by Kevin Wong (R36Redbird [at] yahoo [dot] com)

Accroding to MTA Bridges & Tunnels, approximately ten lifts a year of the Triborough Manhattan Lift Bridge are conducted for maintenance purposes, and to honor requests from the US Coast Guard and various Maritime travelers.