The California Highway Patrol reported a collision on Lakeville Highway (SR-116) at Stage Gulf on Tuesday afternoon. The incident was reportedly blocking traffic in the area.
During rush hour, at 5:32 p.m., The Santa Rosa Area CHP reported traffic had already backed up in both directions on Lakeville and Stage Gulch. Drivers were advised to avoid the area.
Traffic coming in from the Sonoma Area should detour to Old Adobe to get into Petaluma, it said. Traffic coming out of Petaluma should detour south on US-101 to eastbound SR-37.