 A diamond interchange exists for a park road in Indian Island County Park, followed by a quarter-cloverleaf interchange for Hubbard Avenue near the Main Line of the Long Island Rail Road.North of NY 25 in Aquebogue, a cloverleaf interchange was planned for the formerly proposed Long Island Expressway Extension.CR 105 replaces Union Avenue south of the intersection with CR 43 (Northville Turnpike) in Northville, only to run along the west side of the former Riverhead Air Park, and finally terminates at Sound Avenue.