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Richmond–San Rafael Bridge
The Richmond–San Rafael Bridge (also named the John F. McCarthy Memorial Bridge〔(2013 Named Freeways, Highways, Structures and Other Appurtenances in California ), California Department of Transportation, 2013, pp. 150, 154 and 246. This State of California document indicates that the bridge has two official names, both enacted by legislative resolution, in 1955 and 1981 respectively.〕) is the northernmost of the east–west crossings of the San Francisco Bay in California, USA. As part of Interstate 580, it connects Richmond on the east to San Rafael on the west end. It opened in 1956, replacing ferry service by the Richmond–San Rafael Ferry Company.
==Description==
The bridge—including approaches—measures 5.5 miles (29,040 feet / 8,851.39 m / 8.9 km) long. At the time it was built, it was one of the world's longest bridges. The bridge spans two principal ship channels and has two separate major spans, each of the cantilever type. To save money, both main cantilever sections were designed identically, including the angles, necessitating the "dip" in the central section, giving the bridge a "roller coaster" appearance and also the nickname "roller coaster span". This appearance has also been referred to as a "bent coat hanger". After it was completed, many were disappointed by the aesthetics of the low budget bridge, especially when compared to the engineering and historical marvels of the neighboring Golden Gate Bridge and the Bay Bridge.
Golden Gate Transit bus routes 40 and 42 provide public transportation across the bridge, connecting El Cerrito del Norte BART and Richmond BART/Amtrak (42 only) stations and other locations in Richmond with San Rafael Transit Center and other locations in San Rafael.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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