new parkway, and four new interchanges were proposed for the Bethpage Parkway. The first, exit B5, would be at NY 135 (the Seaford–Oyster Bay Expressway). With this new interchange, the traffic circle with Plainview Road in Bethpage State Park would be eliminated. Other junctions included a diamond interchange for Plainview Avenue and Bethpage State Park, a full cloverleaf interchange with Old Country Road, and a partial cloverleaf interchange with the Long Island Expressway (then-NY 495). North of there, the new Caumsett exits would be a full cloverleaf interchange with the Northern State Parkway, a diamond interchange with NY 25 (Jericho Turnpike) and an interchange with NY 25A and NY 108. After the NY 25A interchange, the parkway would continue north into Caumsett State Park and end at a traffic circle at the southern end of the park. In 1990, the Long Island Regional Planning Board proposed a new parkway extension to NY 25A in Cold Spring Harbor as part of a 20-year highway improvement program. However, funding sources were not specified. As part of the Long Island Transportation Plan 2000, the New York State Department of Transportation proposed that the Bethpage be extended northwest to NY 135 in Bethpage. In 1987, however, the Long Island Greenbelt Trail Conference proposed that the right-of-way for the Caumsett become part of a new Greenbelt trail. In September 2002, Governor George Pataki announced the opening of Trail View State Park, a new, linear state park using the former Bethpage and Caumsett right-of-way. The park also included a trail. The New York State Department of Transportation is currently constructing the Bethpage Bikeway, a multi-use trail extending northward from Bethpage State Park to the Syosset station on the Long Island Rail Road. Part of the path will use a former alignment of the Long Island Motor Parkway. The proposed bike trail will cost $6.49 million (2012 USD) and was expected to be completed on July 3, 2012. The contract is slated to expire on December 30, 2012. The map on the right shows the built segment of the Bethpage State Parkway (black) and the unbuilt segments of the Bethpage Parkway and unbuilt Caumsett Parkway (red). Exit list Caumsett State Parkway extension If ever built, the Bethpage State Parkway extension to the Caumsett State Parkway would have the following interchanges, beginning at the northern terminus of the Bethpage Parkway. The entire route would have been in Nassau