Southbound Geer Road, between Tuolumne Road and Pedras Road, is closed to traffic as utility lines have been knocked down in the area.
It appears as though a semi truck has collided with a tree on Geer Road, but little is known other than that.
The lines are not currently in the road, but Turlock police and fire are working in the area.
Southbound traffic is being diverted either east or west on Tuolumne Road. Northbound Geer Road is open as of 5:30 p.m.
TurlockCityNews.com will update the story as soon as details are released.