The Shasta County Department of Public Works is responsible for maintaining over 300 bridges of various types and sizes. Caltrans (State of California Department of Transportation) inspects 222 of these bridges triennially. The remaining bridges are inspected by County Crews. Based on the information provided in the inspection reports, the Road Maintenance Division performs the necessary maintenance such as repairing concrete and replacing old or damaged timbers and bridge railing. Major repairs are designed by the Public Works Engineering Division) and constructed by contract.