<Table> <Tr> <Th_colspan="2"> Golden Gate Bridge </Th> </Tr> <Tr> <Td_colspan="2"> View of the Golden Gate Bridge from Marshall's Beach in the Presidio of San Francisco </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 37 ° 49 ′ 11" N 122 ° 28 ′ 43" W ﻿ / ﻿ 37.81972 ° N 122.47861 ° W ﻿ / 37.81972; - 122.47861 Coordinates: 37 ° 49 ′ 11" N 122 ° 28 ′ 43" W ﻿ / ﻿ 37.81972 ° N 122.47861 ° W ﻿ / 37.81972; - 122.47861 </Td> </Tr> <Tr> <Th> Carries </Th> <Td> 6 lanes of US 101 / SR 1 (see below), pedestrians and bicycles . </Td> </Tr> <Tr> <Th> Crosses </Th> <Td> Golden Gate </Td> </Tr> <Tr> <Th> Locale </Th> <Td> San Francisco, California and Marin County, California, U.S. </Td> </Tr> <Tr> <Th> Official name </Th> <Td> Golden Gate Bridge </Td> </Tr> <Tr> <Th> Maintained by </Th> <Td> Golden Gate Bridge, Highway and Transportation District </Td> </Tr> <Tr> <Th_colspan="2"> Characteristics </Th> </Tr> <Tr> <Th> Design </Th> <Td> Art Deco, Suspension, truss arch & truss causeways </Td> </Tr> <Tr> <Th> Material </Th> <Td> Steel </Td> </Tr> <Tr> <Th> Total length </Th> <Td> 8,981 ft (2,737.4 m), about 1.7 mi (2.7 km) </Td> </Tr> <Tr> <Th> Width </Th> <Td> 90 ft (27.4 m) </Td> </Tr> <Tr> <Th> Height </Th> <Td> 746 ft (227.4 m) </Td> </Tr> <Tr> <Th> Longest span </Th> <Td> 4,200 ft (1,280.2 m) </Td> </Tr> <Tr> <Th> Clearance above </Th> <Td> 14 ft (4.3 m) at toll gates, Trucks cannot pass </Td> </Tr> <Tr> <Th> Clearance below </Th> <Td> 220 ft (67.1 m) at high tide </Td> </Tr> <Tr> <Th_colspan="2"> History </Th> </Tr> <Tr> <Th> Architect </Th> <Td> Irving Morrow </Td> </Tr> <Tr> <Th> Engineering design by </Th> <Td> Joseph Strauss, and Charles Ellis </Td> </Tr> <Tr> <Th> Construction start </Th> <Td> January 5, 1933 (1933 - 01 - 05) </Td> </Tr> <Tr> <Th> Construction end </Th> <Td> April 19, 1937 (1937 - 04 - 20) </Td> </Tr> <Tr> <Th> Opened </Th> <Td> May 27, 1937; 81 years ago (1937 - 05 - 27) </Td> </Tr> <Tr> <Th_colspan="2"> Statistics </Th> </Tr> <Tr> <Th> Daily traffic </Th> <Td> 110,000 </Td> </Tr> <Tr> <Th> Toll </Th> <Td> Cars (southbound only) $7.50 (Pay by plate), $6.50 (FasTrak), $4.50 (carpools during peak hours, FasTrak only) </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> California Historical Landmark </Th> </Tr> <Tr> <Th> Designated </Th> <Td> June 18, 1987 </Td> </Tr> <Tr> <Th> Reference no . </Th> <Td> 974 </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> San Francisco Designated Landmark </Th> </Tr> <Tr> <Th> Designated </Th> <Td> May 21, 1999 </Td> </Tr> <Tr> <Th> Reference no . </Th> <Td> 222 </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Td_colspan="2"> Golden Gate Bridge Bridges in the San Francisco Bay </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Golden Gate Bridge </Th> </Tr>

How long was the construction of the golden gate bridge
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