Woman Killed, Three Injured in Crash at Highway 92 and Alameda de las Pulgas

Published August 2, 2025

A 30-year-old woman died and three other people were injured in a two-vehicle collision near Alameda de las Pulgas and Highway 92 in San Mateo on Thursday evening, July 31, 2025, according to the San Mateo Police Department.

Police said officers and California Highway Patrol personnel responded at about 6:17 p.m. and found a Ford SUV and a Toyota Prius. The woman driving the Prius was pronounced dead at the scene. Her two children, boys ages 5 and 7, were taken to a hospital and were last reported in critical but stable condition. The Ford’s driver, its only occupant, was hospitalized with minor injuries.

In an August 1 media release, police said the preliminary investigation indicated that the Ford was leaving the eastbound Highway 92 off-ramp and entered the intersection while its signal was red. The Prius was traveling north on Alameda de las Pulgas with a green signal, police said. The release said the vehicles collided, but did not announce a final investigative finding. Police also said the Ford driver was not impaired and withheld his identity.

Police reported that the closures required during the investigation lasted about four hours and that the roads had reopened by the time of the release.

Location of the Incident

The police release places the collision at Alameda de las Pulgas and Highway 92. It does not identify a more exact impact point.

Laws Affecting This Incident

California Vehicle Code § 21453 generally requires a driver facing a steady red signal to stop at the marked limit line, or before entering the crosswalk or intersection if there is no limit line. San Mateo police described the Ford’s signal as red in their preliminary account. That reported account is not a court finding, and this statutory context does not determine fault or legal responsibility in this report.

California Vehicle Code § 21453 — Steady red signal

About This Report

This report is based primarily on the San Mateo Police Department’s August 1, 2025, media release. CBS San Francisco also reported on the collision. This summary reflects the preliminary information available in those reports; the police department said its investigation was continuing.