Coney Island Creek was minimally navigable and there were plans to widen, straighten and deepen it as the Gravesend Ship Canal. The canal was never built and, at the time of the building of the Belt Parkway (circa1940s) over part of its bed, the creek was filled in from Shell Road (extension of McDonald, formerly Gravesend, Avenue) on the west to West End Avenue on the east, so that Coney Island is no longer an island. Coney Island would more properly be described now as a peninsula.
Today, the Western portion of Coney Island Creek still exists on the Gravesend Bay side, and is spanned by highway bridges at Cropsey Avenue and Stillwell Avenue, and by a subway system bridge east of Stillwell Avenue. The eastern portion of the creek has either been filled in or absorbed in the widened and bulkheaded Sheepshead Bay.
S.E. of the S. end of Manhattan Island, U.S.A., on the S. shore of Long Island, from which it is separated by Gravesend Bay, Sheepshead Bay, ConeyIslandCreek, a tidalinlet, and a broad stretch of low salt marshes.
The island is the westernmost of a chain of outlying sandbars that extends along the southern shore of Long Island for almost 10o m.; it is about 5 m.
Adjacent to Manhattan Beach on the mainland, and separated from it by a narrow neck of Sheepshead Bay, lies the village of Sheepshead Bay, in which is the famous race track of the ConeyIsland Jockey Club.