Brentwood Motorcyclist Killed in Three-Vehicle Crash on Highway 4 in Concord
A 47-year-old motorcyclist from Brentwood was killed in a three-vehicle crash on westbound Highway 4 east of Port Chicago Highway in Concord on Monday afternoon, September 21, 2026. According to the California Highway Patrol, he was thrown from his motorcycle after a collision with a sedan and was then struck by a pickup truck.
Resumen del incidente
Área del choque
Lo que informó la CHP
Officers from the California Highway Patrol's Contra Costa Area responded at about 3:06 p.m. on Monday, September 21, 2026, to a three-vehicle crash on westbound Highway 4 east of Port Chicago Highway in Concord, according to the CHP and Bay Area news reports.
According to the CHP, a Volkswagen Jetta and a motorcycle collided, and the rider was thrown from the motorcycle. He was then struck by a Toyota Tundra pickup. He was pronounced dead at the scene. The Contra Costa County Sheriff-Coroner's Office identified him as Michael Scott Rigsby, 47, of Brentwood.
The CHP said the rider was wearing a helmet and the occupants of the Jetta and the Tundra were wearing seat belts. Officers said they did not suspect alcohol or drugs. Westbound Highway 4 was partially closed for more than three hours, with backups reaching into Pittsburg, before all lanes reopened shortly after 6:30 p.m.
A Dangerous Stretch for Riders
Highway 4 between Concord and Pittsburg carries heavy commuter traffic, and the merges near Port Chicago Highway and Willow Pass Road leave little room for error. Our study of six years of fatal-crash data found that Highway 4 is the deadliest road in Contra Costa County.
Riders have no crumple zone and no seat belt. In a multi-vehicle crash like this one, a rider who is thrown can be struck by a second vehicle that had nothing to do with the first impact. This article does not assign blame. How the first collision happened is a question for the CHP investigation.
What the Family Should Know
When a motorcyclist is killed, insurers often start from the assumption that the rider was at fault. California law does not work that way. Fault is decided on the evidence, including witness statements, vehicle damage, video, and the CHP's reconstruction, and more than one driver's insurance may be involved when two vehicles struck the rider.
California allows close family members to bring a wrongful death claim, generally within two years. Our abogado experto en accidentes de motocicleta en Concord page explains how these cases work, and our abogados de lesiones personales en Concord are available for a free, confidential conversation.
Our thoughts are with Michael Rigsby's family and friends.
Preguntas Frecuentes
Lost Someone in a Highway 4 Motorcycle Crash?
Scranton Law Firm can help preserve evidence, review the CHP investigation, and explain what options may exist.
Solicite una consulta gratuitaSin presión. Una revisión seria y confidencial de lo que sucedió y de las opciones que existen.