WATSONVILLE, Santa Cruz County, Calif., Nov. 13, 2026 — Two people were hurt on Wednesday morning, November 11, when a heavy-duty septic truck collided with a car on northbound State Route 1 near State Route 129, according to the California Highway Patrol.
The crash happened on NB SR-1 just north of the SR-129 junction near Riverside Road. Early reports to dispatchers described a large truck involved with multiple vehicles in the area, though the agency later confirmed the collision involved two vehicles, a car and a heavy-duty 10-wheel septic truck. Callers reported seeing a car with major damage and said people rushed to help someone inside one of the vehicles. CHP radio traffic also noted a water tanker truck that had pulled to the side of the road nearby, though it was not confirmed to be involved.
The CHP initially classified the call as a collision with injuries of unknown severity before updating it to a minor injury crash. Dispatch logs noted that both vehicles ended up blocking lanes and that emergency crews requested equipment as a precaution. Fire and ambulance crews responded, and the number one lane was blocked for a time before traffic was able to move again using the right shoulder.
A tow truck was requested to remove the vehicles, and Caltrans was notified to assist at the scene. By late morning, units reported traffic flowing again with the number two lane open as the heavy-duty tow worked to clear the wreckage. The extent of the injuries to those involved has not been released, and the cause of the collision remains under investigation by the CHP.
We hope everyone who was hurt makes a full and speedy recovery.
Intersection Safety in California
The truck crash was reported at State Route 1 and State Route 129 in Watsonville. Our California intersection resource page covers intersection crashes across California.
Frequently Asked Questions
Why are crashes involving large trucks usually more severe than typical car accidents?
The size and weight difference between a truck and a passenger car means more force is transferred to the smaller vehicle, which usually results in more serious damage and injury.
What are truck blind spots, and why do they matter in a crash like this?
Large trucks have wide blind spots along both sides, behind the trailer, and directly in front of the cab. Drivers in these zones may not be visible to the truck driver, raising the risk of a collision during lane changes or merges.
What is an underride crash?
An underride crash happens when a smaller vehicle slides partially or fully beneath a truck's trailer during a collision, usually from the side or rear, which can cause severe damage to the smaller vehicle.
What commonly causes large-truck accidents?
Common factors include driver fatigue, following too closely, mechanical failure, improper lane changes, and reduced visibility, though the specific cause of any crash is determined by the investigating agency.
