Sonoma County contract crews will be working during daylight hours in several locations on Saturday, Sept. 7.

Stripes will be painted on Lytton Springs Road, Porter Creek Road, Geyserville Avenue and West Dry Creek Road, with delays of up to 20 minutes.

Work will continue on the Porter Creek Bridge Project, with bridge deck and wall construction 7 a.m. to 7 p.m. One-lane traffic controls will be in force, with expected weekend traffic delays.