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The Caldecott Tunnel is a three bore highway tunnel between Oakland, California and Contra Costa County, California. The east-west tunnel is signed as a part of State Route 24, which is also known as the William Byron Rumford Freeway from Interstate 580 to Walnut Creek, and connects Oakland to... bedroom communities in Contra Costa County, through the Berkeley Hills. The tunnel is named after Thomas E. Caldecott , mayor of Berkeley from 1930–1932, member of the Alameda County Board of Supervisors 1933-1945, and president of Joint Highway District 13, which built the first two bores. Bore 1 and Bore 2 were completed in 1937 and are each 3,610 feet long and carry two lanes of traffic. Bore 3 , built in 1964, is 3,771 feet in length, and also carries two traffic lanes. The middle bore can be shifted to accommodate heavy traffic. Generally, it carries westbound traffic from about midnight to noon and eastbound traffic from about noon to midnight. Construction of a fourth bore began in January 2010.
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The San Francisco Bay Area Combined Statistical Area , officially known as the San Jose-San Francisco-Oakland, CA CSA, is the 6th most populous of 125 Combined Statistical Areas as defined by the United States Office of Management and Budget. This census-defined area encompasses the better known... nine-county San Francisco Bay Area as well as two other counties the Bay Area does not traditionally include. The SFBA CSA is entirely within Northern California and is composed of 11 counties: Alameda, Contra Costa, Marin, Napa, San Benito, San Francisco, San Mateo, Santa Clara, Santa Cruz, Solano, and Sonoma. This definition is larger than the popular local definition of the San Francisco Bay Area which consists of nine counties each touching the San Francisco Bay. The popular designation does not include San Benito or Santa Cruz counties. The SFBA CSA has a population of more than 7.46 million as determined in the 2010 census, up from about 7 million in 2002. In the U.S.
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San Rafael is a city and the county seat of Marin County, California, United States. The city is located in the North Bay region of the San Francisco Bay Area. As of the 2010 census the city's population at 57,713. What is now San Rafael was once the site of several Coast Miwok villages; Awani-wi,... near downtown San Rafael, Ewu, near Terra Linda, and Shotomko-cha, in Marinwood. Mission San Rafael Arcángel was founded in what is now downtown San Rafael as the 20th Spanish mission in the colonial Mexican province of Alta California by four priests—Father Narciso Durán from Mission San José, Father Abella from Mission San Francisco de Asís, Father Luis Gíl y Taboada from La Iglesia de Nuestra Señora Reina de los Angeles and Father Junípero Serra, Father Presidente of the Missions—on Dec. 14, 1817, four years before Mexico gained independence from Spain. Mission San Rafael Arcángel was located a donkey's day walk to the mission below it. The mission and the city are named after the Archangel Raphael, the Angel of Healing.
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