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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 first section is an east–west arterial road running from SR 1 in San Gregorio to Menlo Park, across the Dumbarton Bridge through Fremont and Newark and ending at I-580 in Livermore. The segment between Marsh Road and the Dumbarton Bridge has been upgraded to an expressway and is known as the Bayfront Expressway. The segment from the ...
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]
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 ).
With the exception of the red ponds in the foreground, most of the wetlands visible are in the refuge, including the dark green area by the Mowry Slough in the lower left, the area on both sides of the meandering Plummer Creek near the east end of the Dumbarton bridge, and areas on the far side of the bridge on both sides of the bay, up through ...
Additional bus service across the Dumbarton Bridge is provided by Dumbarton Express, which is a Transbay bus service provided under a consortium of five transit operators (AC Transit, BART, SamTrans, Union City Transit, and VTA). Dumbarton Express was operated by AC Transit through December 16, 2011 before being transferred to a contractor.
Also serves Palo Alto station, Menlo Park V.A. Hospital, and Ardenwood Park-and-Ride in Newark via Palm Av, Lytton Av, Middlefield Rd, Willow Rd, Dumbarton Bridge, and Decoto Rd. Dumbarton Express Line DB1 East-West Palo Alto Stanford Research Park (Deer Creek Rd) Union City Union City station Weekdays Palo Alto, Newark, Union City Line DB1
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).