The Fire Island Inlet Bridge, an integral part of the Robert Moses Causeway, is a two-lane, steel tied arch span with a concrete deck that carries the parkway over Fire Island Inlet. Construction of the Fire Island Bridge was completed in 1964 and although a relatively young structure, (less than 50 years old), its concrete deck has suffered from severe chloride ingress resulting in cracks, spalling, and the formation of potholes. The Fire Island Inlet span of the Robert Moses Causeway connects to Robert Moses State Park on the western tip of Fire Island.