There is no question that San Francisco bridges are examples of the most formidable and complicated bridges in the United States. Bridges in San Francisco are famous for many various reasons, whether it is for their size or the mark they have made in history. Here is a few of the most original and outstanding bridges that San Francisco has to give.
Hayward Bridge
Originally referred to as the San Francisco Bay Toll Bridge, the Hayward connects the San Francisco Bay with the East Bay. At seven miles long, it is currently the longest bridge in the San Francisco area and it ranks as amongst the top 25 longest bridges in the world. When they Hayward Bridge was first built in 1929, the Hayward Bridge was only two lanes with a vertical lift span over the shipping channel. In 1967, the Hayward Bridge was remodeled from multiple steel girders and concrete trestle spans.
Oakland Bay Bridge
The Oakland Bay Bridge is a unique structure, and is essentially a tunnel plus two bridges that connect the easterly side of San Francisco and the western side of Oakland. The bridge was designed by Charles Purcell with construction starting in 1933 and opening in 1936. The first part is a two spanned double-decker suspension bridge running 10,304 feet long and connecting San Francisco to Yerba Buena Island. After leaving the Yerba Buena tunnel, a 10,176 foot cantilever bridge continues to the Oakland Bay.
Golden Gate Bridge
The Golden Gate bridge was designed by the famous architect Joseph Strauss and was done in 1937 setting the standard for future bridges. The total weight of the bridge is supported by two main cables, with each cable having 27,572 wires, equaling 80,000 miles of cable. Most noticeable though is the orange paint that was painted on the bridge so the Golden Gate Bridge would be tangible to ships in the thick San Fran fog. This is also the first bridge that ever tried a security-net for the safety of the bridge workers during construction.
Richmond San Rafael Bridge
This wonderful double-decker cantilever and truss bridge is 29,040 feet long and was opened for traffic in 1956. It is nick-named the "roller coaster" bridge and many consider it to be one of the sturdiest bridges ever built. Despite it having a clearance of 185 feet this bridge has been thought to be hit by ships but has not had to close down for repairs due to it. In truth a navy radar vessel and a World War II battleship collided with the bridge both on the exact same day.
Antioch Bridge
The initial Antioch Bridge was built in 1926 by Aven Hanford and Oscar Klatt, it was the first toll bridge over the San Francisco tributary. But from the the beginning it encountered problems, thanks to a design flaw many ships collide into its narrow opening and in 1970 the lift span stopped working. In 1978 a new steel plate girder bridge was assembled and is now known as the Senator John A. Nejedly Bridge.
Hayward Bridge
Originally referred to as the San Francisco Bay Toll Bridge, the Hayward connects the San Francisco Bay with the East Bay. At seven miles long, it is currently the longest bridge in the San Francisco area and it ranks as amongst the top 25 longest bridges in the world. When they Hayward Bridge was first built in 1929, the Hayward Bridge was only two lanes with a vertical lift span over the shipping channel. In 1967, the Hayward Bridge was remodeled from multiple steel girders and concrete trestle spans.
Oakland Bay Bridge
The Oakland Bay Bridge is a unique structure, and is essentially a tunnel plus two bridges that connect the easterly side of San Francisco and the western side of Oakland. The bridge was designed by Charles Purcell with construction starting in 1933 and opening in 1936. The first part is a two spanned double-decker suspension bridge running 10,304 feet long and connecting San Francisco to Yerba Buena Island. After leaving the Yerba Buena tunnel, a 10,176 foot cantilever bridge continues to the Oakland Bay.
Golden Gate Bridge
The Golden Gate bridge was designed by the famous architect Joseph Strauss and was done in 1937 setting the standard for future bridges. The total weight of the bridge is supported by two main cables, with each cable having 27,572 wires, equaling 80,000 miles of cable. Most noticeable though is the orange paint that was painted on the bridge so the Golden Gate Bridge would be tangible to ships in the thick San Fran fog. This is also the first bridge that ever tried a security-net for the safety of the bridge workers during construction.
Richmond San Rafael Bridge
This wonderful double-decker cantilever and truss bridge is 29,040 feet long and was opened for traffic in 1956. It is nick-named the "roller coaster" bridge and many consider it to be one of the sturdiest bridges ever built. Despite it having a clearance of 185 feet this bridge has been thought to be hit by ships but has not had to close down for repairs due to it. In truth a navy radar vessel and a World War II battleship collided with the bridge both on the exact same day.
Antioch Bridge
The initial Antioch Bridge was built in 1926 by Aven Hanford and Oscar Klatt, it was the first toll bridge over the San Francisco tributary. But from the the beginning it encountered problems, thanks to a design flaw many ships collide into its narrow opening and in 1970 the lift span stopped working. In 1978 a new steel plate girder bridge was assembled and is now known as the Senator John A. Nejedly Bridge.
About the Author:
John Feyd has been interested in San francisco bridges for a while. He has written op-eds and editorial pieces for many online publications. For more information, feel free to visit his site.
Ditulis oleh:
Unknown - Saturday, September 14, 2013
If you like this article please shere it
Thank's you just read article about and the title Visit San Francisco Bridges. You can bookmark withURL http://travel-leisure-updates.blogspot.com/2013/09/visit-san-francisco-bridges.html. Terima kasih!
Please give me your good rating...
Belum ada komentar untuk "Visit San Francisco Bridges"
Post a Comment