Work crews will be out on several Richmond County roads this week. Sign removal and installation work takes place on Route 600 near Maon Road and on Route 690 near Piney Grove Road and Chestnut Hill Road with single lane closures. Work hours are weekdays between 8:00 a.m. and 4:00 p.m. Road resurfacing on Route 611, Route 620, Route 720 and Route 1044 will result in single lane closures and flaggers will be directing traffic.