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San Diego - Coronado Bay Bridge
[Information Updated - July 14, 2010]
The San Diego - Coronado Bay Bridge built with an
eye to appearance as well as transportation service, has become a symbol of
the San Diego area-just as the Golden Gate and San Francisco-Oakland Bay Bridges
symbolize that area around the world. Its distinctive towers and graceful curve
are a striking landmark in the harbor area.
In 1970, it
received the Most Beautiful Bridge Award of Merit from the American
Institute of Steel Construction. The bridge was financed by a California Toll Bridge
Authority $47.6 million bond issue which has since been repaid from toll
revenue. It is one of nine State-owned toll bridges. Construction started
in February 1967, and the bridge was opened to traffic on
August 3, 1969 during the celebration of the 200th anniversary of the founding
of San Diego. It is notable among the world's great bridges for the number
and size of its concrete towers.
The roadway is of orthotropic steel plate design
and serves as the top flange of the box girder.
Its spans are third longest of their kind in the country. This design saves steel and
provides a slender superstructure with a smooth exterior, all braces and
stiffeners being inside the box girder. The steel superstructure was fabricated and
erected in the San Francisco Bay Area. Girders were barged down the Pacific
Coast and lifted into place by the largest barge crane in the West, the "Marine
Boss."Precast prestressed concrete girders of up to 165-feet in
length were manufactured in Long Beach. These are among the longest of their
kind in use in the country.
The total traffic volume in 1971 was 8,631,436 vehicles. In the year 1996, the average
daily traffic was 66,000. During the summer, volumes increase to over 69,000 vehicles a day.
[Information Updated - July 14, 2010]
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