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The Dumbarton Bridge and its adjacent powerline towers. The Dumbarton Bridge is the southernmost of the highway bridges across San Francisco Bay in California.Carrying over 70,000 vehicles [1] and about 118 pedestrian and bicycle crossings daily [2] (384 on weekends [3]), it is the shortest bridge across San Francisco Bay at 1.63 miles (8,600 ft; 2,620 m).
The segment from the eastern end of the Dumbarton Bridge to the interchange with I-880 has been upgraded to a freeway. The other section is a north-south arterial road that begins at SR 12 in Rio Vista , passes through Ryer Island (where it connects to SR 220 ), and ends in West Sacramento .
The Dumbarton Rail Bridge, a swing through-truss span, was the first structure built across San Francisco Bay. The Dumbarton Cut-off includes a second, smaller swing through-truss to the east of the Dumbarton Rail Bridge. Some portions of the timber trestles had been replaced with concrete structures in the 1960s and 1970s. [6]
The Dumbarton Rail Bridge lies just to the south of the Dumbarton road bridge. Built in 1910, the rail bridge was the first structure to span San Francisco Bay , shortening the rail route between Oakland and San Francisco by 26 miles (42 km).
The Bayshore Freeway is a part of U.S. Route 101 (US 101) in the San Francisco Bay Area of the U.S. state of California. It runs along the west shore of the San Francisco Bay, connecting San Jose with San Francisco. Within the city of San Francisco, the freeway is also known as James Lick Freeway, named after the California philanthropist.
Interstate 680 (I-680) is a north–south auxiliary Interstate Highway in Northern California.It curves around the eastern cities of the San Francisco Bay Area from San Jose to I-80 at Fairfield, bypassing cities along the eastern shore of San Francisco Bay such as Oakland and Richmond while serving others more inland such as Pleasanton and Concord.
Route 238, consisting of State Route 238 (SR 238) and Interstate 238 (I-238), is a mostly north–south state and auxiliary Interstate highway in the San Francisco Bay Area of California. The southern segment is signed as SR 238 and is a divided multilane surface highway that runs parallel to the Hayward hills between I-680 in Fremont and I-580 ...
Dumbarton Express is a regional public transit service in the San Francisco Bay Area connecting Alameda, San Mateo, and Santa Clara Counties via the Dumbarton Bridge, the system's namesake. The bus service is funded by a consortium of five transit agencies ( AC Transit , BART , SamTrans , Union City Transit , and VTA ).