PLACER COUNTY – Caltrans is reminding motorists of various lane closures in multiple locations along State Route 49 (SR 49) as several improvement projects continue in Placer County. Here is the breakdown for the week:Sidewalk Gap Closure ProjectSouthbound between Dry Creek Road and Bell Road, various lane closures are scheduled from 7 p.m. to 7 a.m. Sunday, September 21 through Thursday, September 25. Work is scheduled to end for the week by 7 a.m. Friday, September 26. Southbound between Lone Star Road and Lorenson Road/Florence Lane, various lane closures are scheduled from 7 a.m. to 5 p.m. Monday, September 22 through Friday, September 26. The extended lane closures will help to minimize the duration of the work and improve workers’ safety.