<Table> <Tr> <Th_colspan="2"> Dumbarton Bridge </Th> </Tr> <Tr> <Td_colspan="2"> The Dumbarton Bridge and its adjacent powerline towers </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 37 ° 30 ′ 25" N 122 ° 07 ′ 01" W ﻿ / ﻿ 37.5069 ° N 122.1169 ° W ﻿ / 37.5069; - 122.1169 Coordinates: 37 ° 30 ′ 25" N 122 ° 07 ′ 01" W ﻿ / ﻿ 37.5069 ° N 122.1169 ° W ﻿ / 37.5069; - 122.1169 </Td> </Tr> <Tr> <Th> Carries </Th> <Td> 6 lanes of SR 84, bike / pedestrian </Td> </Tr> <Tr> <Th> Crosses </Th> <Td> San Francisco Bay </Td> </Tr> <Tr> <Th> Locale </Th> <Td> Menlo Park, California and Fremont, California </Td> </Tr> <Tr> <Th> Owner </Th> <Td> State of California </Td> </Tr> <Tr> <Th> Maintained by </Th> <Td> California Department of Transportation and the Bay Area Toll Authority </Td> </Tr> <Tr> <Th_colspan="2"> Characteristics </Th> </Tr> <Tr> <Th> Design </Th> <Td> Twin Concrete Girder Bridge </Td> </Tr> <Tr> <Th> Total length </Th> <Td> 2,621.28 meters (8,600.0 feet), 1.63 miles </Td> </Tr> <Tr> <Th> Longest span </Th> <Td> 103.63 meters (340.0 feet) </Td> </Tr> <Tr> <Th> Clearance below </Th> <Td> 25.91 meters (85.0 feet) (main span) </Td> </Tr> <Tr> <Th_colspan="2"> History </Th> </Tr> <Tr> <Th> Opened </Th> <Td> October 1982 </Td> </Tr> <Tr> <Th_colspan="2"> Statistics </Th> </Tr> <Tr> <Th> Daily traffic </Th> <Td> 81,000 </Td> </Tr> <Tr> <Th> Toll </Th> <Td> Cars (westbound only) $5.00 (cash or FasTrak), $2.50 (carpools during peak hours, FasTrak only) </Td> </Tr> <Tr> <Td_colspan="2"> Dumbarton Bridge crosses the Southern portion of San Francisco Bay </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Dumbarton Bridge </Th> </Tr>

What is the toll on the dumbarton bridge
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