The State of California is the most populous state of the United States. Located on the Pacific coast of North America, it is bordered by Oregon, Nevada and Arizona in the United States, and Baja California in Mexico. Its capital is Sacramento. The state's four largest cities are Los Angeles, San Diego, San Jose and San Francisco. California is known for its diverse climate and geography, and ethnically diverse population. The state has 58 counties.
Alta California was first colonized by the Spanish Empire in 1769, and after Mexican independence in 1821, continued as part of Mexico. Following one brief week as the independent California Republic in 1846, and the conclusion of the Mexican-American war in 1848, California was annexed by the United States and was admitted to the Union as the thirty-first state on September 9, 1850.
Advanced Highway Maintenance and Construction Technology Research Center - UC Davis and Caltrans highway research center.
The Big Highways Page - Information and tidbits from a Southern California perspective.
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 Highways @ WestCoastRoads.com - Statewide coverage.
California Highways and Bridges - Photos, articles and vintage construction information about California's road network.
California Motorcycle Roads - Descriptions of scenic and challenging backroads.
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.
91 Express Lanes - Information on the toll roadways on the Riverside Freeway (State Route 91) in metro Los Angeles.
Floodgap Roadgap - Documents unusual and former routings in the southern part of the state. Includes photographs.
Freeways of San Francisco - Photos and information on some built and unbuilt freeways.
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.
In Our Path - Describes the process of the construction of I-105 (Century Freeway) near Los Angeles.
Jeff's Streets Page - Information, ideas, and views on Northern California facilities, with an emphasis on the Santa Cruz and Monterey Bay areas.
ReBuild California - Labor/contractor group advocating increased public investment in state infrastructure, including mass transit and highways.
The Ridge Route Preservation Organization - Maps, photos and history of the pioneer highway between Bakersfield and Los Angeles.
SigAlert.com - Includes live freeway speed maps and traffic incident summaries for many locations around the state.
South Bay Expressway - Automated FasTrak toll road in San Diego to open Fall 2006 that will service Chula Vista, Bonita, and Otay Mesa, connecting SR-54 to the Mexico border as part of SR-125. Site includes news and project overview.
Southlandtraffic.net - Covers various details in the southern part of the state. Includes a weblog.
Transportation Corridor Agencies - Builds and manages toll roads in Orange County. Includes toll and transponder information, proposed extensions, and discounts.
Unofficial Road Information For Highway 1, Big Sur - Information about old closures of SR 1 (Pacific Coast Highway) at Big Sur due to a landslide.
The Ups & Downs of Highway 1 (Smithsonian Magazine) - Addresses the erosion problem on the Pacific Coast Highway (SR 1).
Widen I-205 Now - Group wishing to petition the state government to allot money for the widening of the highway near Tracy. Site includes event listing and news.
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