At least one injured in multi-vehicle crash on southbound Highway 101

A crash involving several vehicles delayed traffic on southbound Highway 101 near Petaluma to a crawl Wednesday morning.

The CHP reported four vehicles were involved in the crash near the Lakeville Highway exit, which was first reported at 9:11 a.m., according to Redcom. The crash initially closed all southbound lanes, though responding agencies were able to reopen the two left lanes by 10:07 a.m., according to CHP’s incident log.

A dispatcher said that a pair of ambulances responded, and one patient was transported to Santa Rosa Memorial Hospital. CHP in a Facebook post said that injuries were minor or moderate at worst.

CHP said in the post that a Ford F250 crashed into the back of a Toyota Tacoma stopped in traffic while merging onto the highway from East Washington Street. The Ford rolled onto the roof in the center lanes.

The Toyota, meanwhile, was pushed forward and collided with a Nissan Murano, CHP’s post said. The Nissan hit an Acura MDX.

Traffic on southbound Highway 101 remained bumper to bumper on a 4-mile stretch of the road well past an hour into the incident. Lakeville Highway also was backed up.

Petaluma police sent out a Nixle alert advising drivers to use alternate routes.

Caltrans was on scene working to clear debris from the roadway late Wednesday morning.

You can reach Staff Writer Kaylee Tornay at 707-521-5250 or kaylee.tornay@pressdemocrat.com. On Twitter @ka_tornay.