Rating:
3 votes

Great South Bay Bridge

Suffolk County, New York
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Photos 

View from west

All pictures are from around 1998 while the bridge was under construction.

Photo taken by Kent Findley

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Map 

View Uglybridges.com report

Facts 

Overview
Through truss bridge over Great South Bay on Robert Moses Causeway
Location
Suffolk County, New York
Status
Open to traffic
History
Built 1951
Design
Cantilevered steel through arch
Dimensions
Length of largest span: 460.0 ft.
Total length: 10,519.5 ft. (2.0 mi.)
Deck width: 26.6 ft.
Vertical clearance above deck: 16.2 ft.
Recognition
Eligible for the National Register of Historic Places
Also called
Robert Moses Causway
Approximate latitude, longitude
+40.67056, -73.27083   (decimal degrees)
40°40'14" N, 73°16'15" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/646150/4503624 (zone/easting/northing)
Quadrangle map:
Bay Shore West
Inventory numbers
NY 1058811 (New York State bridge identification number)
BH 26885 (Bridgehunter.com ID)
Inspection (as of 10/2012)
Deck condition rating: Very Good (8 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 72.8 (out of 100)
Average daily traffic (as of 2011)
6,700

Categories 

Arch (9,860)
Built 1951 (171)
Built during 1950s (2,576)
Cantilevered (247)
Flared (404)
Functionally obsolete (7,194)
NR-eligible (3,809)
Navigable waterway (1,669)
New York (1,984)
 Open (30,525)
Over a mile long (218)
Owned by state (10,585)
Span length 250-500 feet (916)
Steel through arch (184)
Suffolk County, New York (42)
Suspended Deck Through Truss (21)
Total length over 2500 feet (653)

Update Log 

  • June 15, 2012: Updated by Rachel Lipton: Added alternate name
  • January 30, 2008: New photos from Kent Findley

Related Bridges 

Sources 

  • Kent Findley - kent [dot] findley [at] gmail [dot] com
  • Rachel Lipton
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Comments 

Great South Bay Bridge
Posted August 26, 2008, by Randy Brush

Thank you for photo. I see old bridge and new bridge. Old bridge already lost. New bridge already open since 1997. THANK YOU.

Great South Bay Bridge
Posted February 12, 2007, by Kent Findley (kent [dot] findley [at] francisalee [dot] com)

The causway spans were replaced with precast concrete in 1997 and the truss and girderspans were rehabilitated in 1997. In the 60s a three lane sister bridge was built alongside to the east.

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