The current southern terminus of County Road 509 is an intersection with Malabar Road (CR 514, a westward extension of State Road 514); the northern terminus is an interchange with Interstate 95 (SR 9) in the midst of Pineda, Suntree, and Viera (Pineda and Suntree on the eastern side of I-95, Viera on the western side), although it extends 2 miles more through southern Viera, with the intersections of Stadium Parkway and Lake Andrew Drive.