June 9-10: Brazoria County Expressway Northbound Overnight Lane Closures 9:00 PM – 10:00 AM – (1) SH-288 Northbound Entrance at Highway 6. (2) Discovery Bay Northbound Entrance Ramp. (3) SH-288 Northbound Frontage Road from Broadway Street Entrance Ramp. (4) SH-288 Northbound General Purpose Lanes Entrance Ramp (approx. near) Magnolia Parkway.