California
91 Express Lanes
Information on the toll roadways on the Riverside Freeway (State Route 91) in metro Los Angeles.
Advanced Highway Maintenance and Construction Technology Research Center
UC Davis and Caltrans highway research center.
Bay Area Miata Association Backroad Drives
Backroads and byways of the San Francisco Bay Area, written from a sports-car driver's perspective.
California Department of Transportation
Caltrans is the state agency responsible for highway, bridge, and rail transportation planning, construction, and maintenance.
California FasTrak
This electronic toll collection system lets drivers electronically pay tolls on California's bridges and toll roads without stopping.
California Highway Patrol Traffic Incident Information
Live traffic incident information from the CHP computer system.
California Highway Routes
Brief history and status of every numbered highway in the state.
California Highways and Bridges
Photos, articles and vintage construction information about California's road network.
California Highways Home Page
Gives detailed history and other information on county, state, U.S. and Interstate facilities in the state. Includes links to pages within the cahighways.org domain.
Casey's Roads and Highways Page
Covers many aspects, including Historic U.S. highways and the unusually-numbered I-238.
DLK's Highway Page
Several freeway plans for the San Francisco Bay Area and California highway signs.
Dr. Roadmap, LLC
Information on both a book and a board game on Los Angeles alternate routes, as well as information on their creator.
Floodgap Roadgap
Documents unusual and former routings in the southern part of the state. Includes photographs.
Friends of Southern California's Highways
A community grass-roots organization dedicated to the rebuilding and expansion of the regional freeway and thoroughfare system.
HaltTheRamp.com
Citizen's campaign against the plan to reconstruct the end of San Francisco's Central Freeway. Site includes historical background and links to official sites.
Historic Highways of Southern and Central California
Examines the area's highway past, present and future.
I-680 Smart Lane
A section of the southbound carpool lane in Alameda and Santa Clara Counties is being considered for conversion to a Smart Carpool Lane or High Occupancy Toll (HOT) Lane.
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