San Luis Obispo/Santa Barbara Centerline and Edgeline Rumble Strips

Caltrans District 5 is preparing to install centerline rumble strips and edge line rumble strips on several state highways in San Luis Obispo and Santa Barbara Counties, including Route 166, Route 33, Route 154, and Route 246. The project targets high-risk locations identified through the Cross Over Collisions Monitoring Program, aiming to reduce the frequency and severity of crossover and run-off-the-road crashes by providing audible and tactile warnings to drifting vehicles. Rumble strips are recognized as an effective, low-cost safety improvement to enhance driver awareness and alertness, particularly on stretches of road with a history of such incidents. The primary beneficiaries are the traveling public using these corridors, with the installation expected to improve overall roadway safety without significant disruption. The project is forecasted for release in July 2026, with Shelby Fredrick serving as the Environmental Coordinator for inquiries and project coordination.