A 24-year-old Moreno Valley woman was killed early Sunday when the car she was riding in flipped onto its roof and she was thrown from the vehicle on northbound Interstate 215 in Perris. The Riverside County Sheriff’s Coroner identified her as Valerie Martinez, and California Highway Patrol officials say alcohol was a factor in the crash that shut down the freeway for hours.
According to the Press-Enterprise, the crash happened around 12:22 a.m. on August 16 on the northbound 215 north of Ramona Expressway, when a 2008 Mazda 3 traveling at high speed collided with the guardrail in the highway’s center median. The Mazda 3 flipped onto its roof before a 2015 Ford Explorer struck it while attempting to pass, according to the same account. CHP Officer Javier Navarro told the paper that neither occupant of the Mazda was wearing a seat belt and that both were intoxicated at the time of the crash.
Martinez was ejected from the Mazda 3 during the collision and died from her injuries, per coroner records cited by the Press-Enterprise. A second occupant of the Mazda was hospitalized with moderate injuries, the report notes, while authorities said the two occupants of the Ford Explorer were not injured in the collision. Investigators are still working to confirm whether Martinez was driving the Mazda or riding as a passenger, Navarro told the outlet, leaving that key detail unresolved for now.
Freeway Shut Down for Hours as CHP Investigated
The California Highway Patrol issued a SigAlert shutting down all northbound lanes of I-215 near Harley Knox Boulevard while officers investigated and cleared debris, according to Patch. Caltrans and law enforcement urged drivers to avoid the area and seek alternate routes while crews worked the scene. The investigation into the crash remains ongoing, and officers have not yet released a final determination on how the Mazda lost control before striking the guardrail.
CHP has asked anyone with information about the crash to contact Accident Investigation Unit Officer N. Ortiz at 951-324-7210, as reported by CBS News Los Angeles. That outlet also reported that officers described the speeding Mazda as striking a guardrail before turning into the path of the Ford Explorer, a sequence that aligns with the account given to the Press-Enterprise. Depending on the final collision reconstruction and toxicology findings, the driver could face charges under California’s gross vehicular manslaughter while intoxicated statute, Penal Code Section 191.5(a), which carries a state prison sentence of four to ten years upon conviction, according to the Shouse Law Group.
A Deadly Weekend on Perris Roadways
The I-215 crash came just hours after a separate multi-vehicle collision on August 15 at Rider Street and Ramona Expressway in Perris killed one person and critically injured four others, CBS News Los Angeles reported. Emergency personnel extinguished a vehicle fire at that scene, illustrating a brutal stretch of severe weekend crashes across the city. Hoodline covered that earlier crash in its report, Perris' Deadliest Corridor Claims Another Life.
The back-to-back tragedies underscore why regional officials broke ground in June on a $184 million safety project along an 8.6-mile stretch of the nearby Ramona Expressway, which recorded 14 traffic deaths between 2017 and 2022. The project will install raised center median barriers and expand travel lanes, according to Hoodline’s earlier reporting. Neither seat belt use nor sobriety can be legislated by median barriers alone, but the investments reflect mounting pressure to address a corridor that has repeatedly proven lethal.
Countywide Numbers Point to Speed and Impairment
The factors cited in Martinez’s death mirror broader patterns across Riverside County, where speeding accounts for 31% of fatal traffic accidents and impaired driving accounts for 26%, according to Statewide Integrated Traffic Records System data analyzed by California Car Accident Statistics. The county’s traffic mortality rate of 33.8 deaths per 100,000 residents outpaces neighboring San Diego County’s 24.3 and Orange County’s 18.7, per data compiled by Heimanson & Wolf, LLP.
Seat belt use remains central to surviving high-speed rollovers like the one that killed Martinez. Preliminary California Highway Patrol data for 2024 and 2025 showed more than 13,000 statewide collisions involved unrestrained occupants, resulting in over 1,300 deaths. Under California’s Mandatory Seat Belt Law, Vehicle Code Section 27315, all occupants aged 16 and older are required to wear safety belts on public highways, giving officers primary enforcement authority over violations.
