Pothole bicycle accidents occur when cyclists encounter poorly maintained road surfaces that cause them to lose control, crash, or suffer direct impact injuries. These dangerous conditions include potholes, cracks, uneven pavement, broken asphalt, missing manhole covers, debris accumulation, and deteriorated road edges. According to the California Office of Traffic Safety, road surface defects contribute to approximately 15% of all bicycle accidents in the state, with urban areas experiencing the highest rates due to aging infrastructure and heavy traffic wear.
The physics of bicycle accidents make potholes particularly dangerous for cyclists. When a bicycle tire strikes a pothole at speed, the sudden impact can cause the wheel to collapse, the frame to buckle, or the rider to be thrown over the handlebars. Even small potholes that might be barely noticeable to a car can cause serious bicycle accidents because of the narrow tires and limited suspension on most bikes. Mountain bikes and road bikes are especially vulnerable, with road bikes' thin, high-pressure tires offering virtually no cushioning against sudden impacts.
California law requires government entities to maintain public roadways in a reasonably safe condition for all users, including cyclists. When cities, counties, or the state fail to repair known hazards or provide adequate warnings, they can be held liable for resulting injuries. However, proving a pothole bicycle accident claim requires demonstrating that the government entity had actual or constructive notice of the dangerous condition and failed to take corrective action within a reasonable timeframe.