- Alexander Hamilton Bridge
Infobox_Bridge
bridge_name= Alexander Hamilton Bridge
caption= From the south, showing truck traffic
official_name=
also_known_as=
carries= 8 lanes of I-95 andUS 1
crosses=Harlem River
locale=Manhattan andthe Bronx , inNew York City
maint=New York City Department of Transportation
id=
design=Arch bridge
mainspan= 555 feet (169 m)
length= 2,375 feet (724 m)
width=
clearance= 103 ft (41 m)
below=
traffic= 181,566 (as of 2005) [http://www.nyc.gov/html/dot/pdf/bridgetrafrpt05.pdf#page=45 New York City Bridge Traffic Volumes] ,New York City Department of Transportation , August 2006. AccessedMay 27 ,2007 .]
open=January 15 ,1963
closed=
toll= none
map_cue=
map_
map_text=
map_width=
lat=
long= The Alexander Hamilton Bridge carries eight lanes of traffic over theHarlem River inNew York City between the boroughs ofManhattan and theBronx , connecting theTrans-Manhattan Expressway in the Washington Heights section of Manhattan and theCross-Bronx Expressway , as part of Interstate 95. The bridge opened to traffic onJanuary 15 ,1963 , the same day that the Cross-Bronx Expressway was completed. For 2005, theNew York City Department of Transportation , which operates and maintains the bridge, reportedaverage annual daily traffic volume in both directions of 181,566; having reached a peak AADT of 192,848 in 1990..The total length of bridge, including approaches, is 2,375 feet (724 m). The parallel main spans of the steel arch bridge stretch 555 feet (169 m) long over the Harlem River and provide 103 ft (31 m) of vertical clearance at the center and 366 ft (112 m) of horizontal clearance.
After completion of the George Washington Bridge in 1931, traffic off that bridge into the Bronx would travel over the
Washington Bridge , which crosses the Harlem River just north of the present Alexander Hamilton Bridge. The Alexander Hamilton Bridge was planned in the mid-1950s to connect toRobert Moses ' proposed Trans-Manhattan and Cross-Bronx Expressways and to accommodate the additional traffic resulting from the addition of the six-lane lower level to the George Washington Bridge. With the Interstate designation, 90% of the $21 million in construction costs were covered by the federal government. The Bridge design included a set of spiraling ramps to connect to and from theMajor Deegan Expressway (completed in 1964) and a viaduct ramp connecting to theHarlem River Drive , both of which are over 100 feet (30 m) below the level of the Bridge, and access to Amsterdam Avenue.References
External links
* [http://www.nyc.gov/html/dot/home.html New York City Department of Transportation]
* [http://www.nycroads.com/crossings/alexander-hamilton/ NYC Roads: Alexander Hamilton Bridge]
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* [http://www.bridgeandtunnelclub.com/bigmap/citywide/bridges/alexanderhamilton/index.htm Bridge and Tunnel Club pictures of the Alexander Hamilton Bridge]
* [http://205.156.4.52/cgi-bin/EyeSpy.dll?getbrww&D:/EyeSpy/images/Online_Chart_Viewer/12342.axs&750&550&1216&3296&2&bgcolor=%23FFFFFF&buttons=/cgi-bin/EyeSpyResources/buttons&alig=0&contenttype=image/jpeg&375&275 Nautical Chart #12342]NOAA .Crossings navbox
structure = Crossings
place =Harlem River
bridge = Alexander Hamilton Bridge
bridge signs =
upstream =Washington Bridge
upstream signs =
downstream = High Bridge
downstream signs =
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