May 20-22 (9:00 PM – 5:00 AM) State Highway 288 Toll Road Northbound Lane Closures at (1)State Highway 288 Northbound Entrance at Highway 6 (2) Discovery Bay Northbound Entrance Ramp (3) State Highway 288 Northbound Frontage road From Broadway Street Entrance Ramp (4) State Highway 288 Northbound Entrance Ramp (Approx. near) Magnolia Parkway.