Great South Bay Bridge
Great South Bay Bridge is a bridge on the southwest side of Suffolk County, on Long Island, in the U.S. state of New York, connecting the Robert Moses Causeway from Long Island's mainland over the Great South Bay, connecting to both Captree and Jones Beach Islands .
The Great South Bay Bridge serves as access via The Robert Moses Causeway to both the Captree Island draw bridge and the Fire Island Inlet Bridge, leading visitors and on-lookers to either the Fire Island Lighthouse or the Robert Moses State Park.
It is the second longest bridge in the New York State, behind only the Tappan Zee Bridge.
The design of the twin bridges is a through truss. The two-lane southbound causeway across Great South Bay opened in 1954 and originally carried two-way traffic. The three-lane northbound bridge opened in 1968, after which the original structure was converted to accommodate one-way southbound traffic. The original bridge was reconstructed between 1997 and 2000.
The dimensions are:
Average daily traffic (as of 2007) is - 7,659
See also 
- Great South Bay Bridge (Weather Underground.com)
- Great South Bay Bridge (Historic Bridges of the United States)
- Robert Moses Causeway @ NYCRoads.com