Sugar Land drivers can expect overnight closures of exit ramps along Hwy. 59 over the next week, the city of Sugar Land announced. Weather permitting, the Texas Department of Transportation will be installing new exit signage. Only one exit ramp will be closed at a time. Officials said drivers should be mindful of work crews and potential traffic delays. Work will take place during the hours of 9 p.m. through 5 a.m. the next day, though ramps could open earlier should work be completed ahead of schedule. The exit ramp closure schedule below is subject to change: July 28 SH 99 southbound Brazos turnaround - northbound July 29 University Blvd. First Colony/Sweetwater Blvd. July 30 Hwy. 6 Williams Trace Blvd. July 31 Dairy Ashford/Sugar Creek Blvd. Kirkwood Rd. Aug. 1 Airport Blvd.