San Francisco Dangerous Roadway & Government Liability Claims

Why this matters

San Francisco Dangerous Roadway Claims

San Francisco’s steep hills, complex multi-modal intersections, and heavy transit and pedestrian mixing mean signal timing and sightlines are recurring factors when a crash is caused partly by the road itself. A public entity can be liable when a road it owns and controls was in a dangerous condition that caused the crash — a defective design, a missing or malfunctioning signal or sign, an unrepaired hazard, or obscured sightlines — and the entity knew or should have known about it in time to fix it (Government Code section 835). This is separate from, and can be in addition to, the fault of any driver. A claim against a city, county, or the state is governed by the Government Claims Act, which requires a formal written claim within six months of the crash (Government Code section 911.2) — far shorter than the two years that apply to a claim against a private driver. Missing that six-month window usually ends the claim against the public entity, so identifying a public road owner early is critical. Public entities often raise design immunity (Government Code section 830.6), arguing that a discretionary, approved design shields them. That defense is not absolute: where conditions have changed since approval — growth, new traffic patterns, or a documented history of similar crashes the entity ignored — a changed-conditions theory can overcome it. Establishing that history early is often what makes the claim viable. These crashes usually involve both a driver and the roadway, and the two can share responsibility. Pursuing the driver alone can leave much of the harm uncompensated when a road defect was a real cause, so identifying both the private and public defendants — on their different deadlines — matters. Preserving the physical condition of the road before it is changed or repaired is equally important. Civil cases are filed in San Francisco County Superior Court.