Orange County Department of Transportation

Find Orange County California departments of transportation, highways, roads, and bridge departments. Departments of transportation provide information on public transport, including roads, highways, bridges, traffic conditions, closures, tolls and travel information.


California Department of Transportation 3347 Michelson Drive Irvine CA 92612 949-724-2000


Orange County Transportation 11790 Cardinal Circle Garden Grove CA 92843 714-560-6282

Orange County Transportation Department 1808 North Batavia Street Orange CA 92865 714-288-2685

About Orange County Departments of Transportation

Orange County Departments of Transportation are branches of California State, Orange County, or Federal government whose mission is to plan for and develop a fast, efficient, accessible, and convenient transportation system and infrastructure that effectively serves the citizenry and promotes economic vitality in Orange County, CA.

You may contact the Department of Transportation for questions about:
  • Orange County DOT compliance training
  • DOT number lookups
  • Road, interstate and highway traffic and closures
  • Road toll and travel information
  • Orange County Transportation Dept jobs and employment
Orange County Department of Transportation

Orange County Transportation Departments are responsible for maintaining and improving transportation infrastructure, including state roads and highways, bridges, airports, ports and waterways, public transit systems, and railways in Orange County. Infrastructure maintenance often involves emergency response to accidents, disasters, and inclement weather such as winter storms. Orange County DOT Offices manages the allocation of Federal and California State funding for Orange County transportation capital improvements and the use of any California funding sources dedicated for transportation purposes, such as toll proceeds and fuel taxes.

US Department of Transportation

The U.S. Department of Transportation (USDOT) is a cabinet-level department headed by the Secretary of Transportation. The department is comprised of eleven offices and administrations primarily organized around modes of transportation. Much of what USDOT does is regulatory in nature. For example, the National Highway Traffic Safety Administration develops regulations for motor vehicle safety and for fuel efficiency standards in Orange County. The Pipeline and Hazardous Materials Safety Administration regulates the nation's pipeline infrastructure and shipments of hazardous material by land, sea, and air.

Orange County Transportation Projects

The USDOT is a major source of funding for transportation capital projects, especially transit and highway projects in Orange County, CA. The Surface Transportation Program provides California State and local Orange County governments approximately $10 billion annually in flexible funding for a wide range of improvements, as well as capital planning purposes.