A multi-vehicle collision, involving an RV, a Subaru, and a Tesla, was reported on northbound Highway 101 near Nelson Ranch Road at Burke Hill around noon on Saturday. Debris blocked lanes, including portions of the southbound side. While an air and ground ambulance were requested, one person declined service, one accepted transport for minor injuries, and another for moderate injuries. By 12:27 p.m., CHP implemented traffic control, causing significant delays.