Single lane closures will occur on US 183 this week due to road improvement work conducted by Williamson County. The northbound and southbound outside lanes of US 183 at FM 3405 will be closed on Wednesday, August 25, Thursday, August 26, and Friday, August 27, from 9 a.m. to 4 p.m. for the replacement of top soil and reseeding work. In addition, the southbound outside lane of US 183 between Mourning Dove Lane and Whitewing Drive will be closed between the hours of 9 a.m. and 3 p.m. on Thursday, August 26, for improvements to US 183.