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State Route 123 (SR 123) is a state highway in the U.S. state of California in the San Francisco Bay Area. Named San Pablo Avenue for virtually its entire length, SR 123 is a major north–south state highway along the flats of the urban East Bay in the U.S. state of California. Route 123 runs a relatively short 7.39 miles (11.9 km) between Interstate 580 in the south and Interstate 80 in the north. San Pablo Avenue itself, a portion of Historic US 40, continues well past these termini but without the Route 123 designation. ==Route description== Route 123 is a four-lane boulevard with a median strip for its entire length. From south to north, it passes through the cities of Oakland, Emeryville, Berkeley, Albany, El Cerrito, and Richmond. It is sometimes used as an alternate route to the Eastshore Freeway (Interstate 80) when that freeway becomes very congested. Major intersections along this route include 40th Street, Ashby Avenue (State Route 13), University Avenue (which leads to UC Berkeley), Gilman Street, Marin Avenue, Central Avenue and Cutting Boulevard. Continuing on San Pablo Avenue past Route 123's southern terminus eventually leads to downtown Oakland and Oakland City Hall where San Pablo Avenue ends. Continuing on San Pablo Avenue past Route 123's northern terminus leads to the cities of San Pablo, Pinole, Hercules, Rodeo, and Crockett. In Hercules, San Pablo Avenue meets the terminus of State Route 4 near Interstate 80, and, after a discontinuity bridged by Parker Avenue in Rodeo, the road approaches the Carquinez Bridge and arrives in Crockett as Pomona Street. An AC Transit Rapid Bus (72R-San Pablo Rapid) runs along San Pablo Ave. from Downtown Oakland to Contra Costa College in San Pablo. The express bus line was put in place after a Metropolitan Transportation Commission study determined that it would be more cost-effective than a previous proposal to install light rail along the route. The BART system runs its Richmond leg parallel to the route up to the El Cerrito Del Norte station. The Alvarado Adobe is located by the San Pablo City Hall on the corner of San Pablo Avenue and Church Lane. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「California State Route 123」の詳細全文を読む スポンサード リンク
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