- California State Route 123
length_ref= [ [http://www.dot.ca.gov/hq/structur/strmaint/brlog2.htm January 1, 2006 California Log of Bridges on State Highways] ]
terminus_a=jct|state=CA|I|580 in Oakland
junction=jct|state=CA|SR|13 in Berkeley
terminus_b=jct|state=CA|I|80 in Richmond
State Route 123 in Northern California, named San Pablo Avenue for virtually its entire length, is a major north-south state highway along the flats of the urban East Bay in the
U.S. stateof 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 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 Hallwhere 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 Bridgeand arrives in Crockett as Pomona Street.
AC TransitRapid Bus (72R-San Pablo Rapid) runs along San Pablo Ave. from Downtown Oakland to Contra Costa Collegein 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 railalong the route. The BART system runs its Richmond leg parallel to the route up to the El Cerrito Del Nortestation..
San Pablo Avenue is one of the oldest existing roads in the East Bay. It originated in the Spanish colonial era as the Camino de la Contra Costa ("road of the opposite shore", i.e. opposite from the
Presidio of San Franciscoand the settlement around the Mission in San Francisco) and was legally a "camino real" ("royal road", i.e., property of the Spanish crown) until Mexico won its independence in 1821. It ran from the Encinal ("Oakland") landings of the Rancho San Antonio northward (actually northwestward) along the bayshore, then eastward just inland of the Carquinez Strait. It was the principal thoroughfare for the scattered ranches throughout this part of the East Bay.
The name persisted into the American era when it was still called the "Contra Costa Road", and was used by a stage coach line between Martinez and Oakland, but when
Contra Costa Countywas divided and Alameda Countycreated out of that division, it was changed to the "San Pablo Road", a name which had already been informally an alternate usage since it ran between Oakland to the Rancho San Pablo on its southern segment. This segment subsequently became today's "San Pablo Avenue".
Prior to the construction of the
Eastshore Highway, San Pablo Avenue was the main north-south route through the northern East Bay, carrying the designation U.S. Route 40 north of University Avenue in Berkeley (US 40 proceeded down to the foot of University and the end of the Berkeley Pierwhere an auto ferry transported motorists to the Hyde Street Pierin San Francisco). U.S. 40 was moved to the new highway after it was built (1930s), and about 25 years later took its current designation of Interstate 80. San Pablo Avenue was Business U.S. 40 until 1964.
During 2005-06, San Pablo Avenue was repaved and otherwise rehabilitated by
Caltrans.Portions of San Pablo Avenue, particularly in Berkeley, Albany, and El Cerrito, are slowly transforming, with a mix of trendy shops, restaurants and condominium developments.
In the early part of the 20th century, a streetcar line ran on San Pablo between Richmond and Oakland. Part of the Oakland segment of these tracks up to Grayson Street in Berkeley were used during World War II for the
Shipyard Railwayof the Key Systemwhich transported workers from the Key System's hub in Emeryvilleto the Kaiser Shipyardsin Richmond.
Alvarado Adobe( California Historical Landmark#512) - Located by San Pablo City Hall on the corner of San Pablo Avenue and Church Lane.
* [http://www.dot.ca.gov/hq/roadinfo/sr123 Caltrans: Route 123 Highway Conditions]
* [http://www.cahighways.org/121-128.html#123 California Highways: Route 123]
* [http://www.westcoastroads.com/california/ca-123.html AARoads: State Route 123]
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