The Smith Point Bridge is a steel drawbridge located on the south shore of central Long Island, New York. The bridge crosses the narrows between the Great South Bay to its west and Moriches Bay to the east side of the bridge.The Smith Point Bridge is the southern terminus of the four-lane William Floyd Parkway (Suffolk CR 46) in Shirley, New York. This bridge serves the Smith Point County Park on the east end of Fire Island, New York.The largest park owned by Suffolk County. The park derives its name from Smith Point which is a peninsula on the Long Island mainland sticking into Bellport Bay which in turn was named for William "Tangier" Smith who in the 17th century owned 50 miles of ocean front property in the Manor of St. George. The Smith Point peninsula is not actually owned by the par