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The east–west tunnel is signed as a part of California State Route 24 and connects Oakland to central Contra Costa County.It is named after Thomas E. Caldecott (1878–1951), who was mayor of Berkeley in 1930–1932, a member of the Alameda County Board of Supervisors in 1933–1945, and president of Joint Highway District 13, which built the first two bores.
State Route 24 (SR 24) is a heavily traveled east–west state highway in the U.S. state of California that serves the eastern side of the San Francisco Bay Area.A freeway throughout its entire length, it runs from the Interstate 580/Interstate 980 interchange (just east of the MacArthur Maze) in Oakland, and through the Caldecott Tunnel under the Berkeley Hills, to the Interstate 680 junction ...
Construction of the tunnel began in early February, 1965. The bores were holed through by March, 1967, and construction completed in July, 1968. [6] The tunnel was opened for revenue service on May 21, 1973, with the Concord line. [7] Material removed in the construction of the tunnel was used as fill for a concurrent expansion of the Port of ...
At the time of the fire, the Caldecott tunnel complex consisted of three bores side-by-side, each 0.7 mi long (1.1 km). The then-northernmost bore, where the fire occurred, is dedicated to westbound traffic, traveling from Orinda to Oakland. It has a slope of approximately 4.7%, going downhill from the entry portal to the exit portal.
The Posey Tube, completed and opened to traffic on October 27, 1928, was named after George Posey, [23] who was the Alameda County Surveyor during the tunnel's planning and construction, and also chief engineer on the construction project. [24] [25] It is the first tunnel for road traffic built using the immersed tube technique.
The years listed reflect when the route was affected by legislative action, this is not necessarily the same year as the actual construction or signing changes to the route. Most notably, SR 275 was deleted from the Streets and Highways Code in 1996, but remained partially maintained until it was added back in 2010; and SR 42 was signed as such ...
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Rockridge station is a Bay Area Rapid Transit station located in the Rockridge district of Oakland, California. Located in the center median of the elevated State Route 24 west of the Caldecott Tunnel, the station has a single island platform serving two tracks. It is served by the Yellow Line.