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The Guy West Bridge is a
The bridge was closed between May and July 1987 after three suspender cables (connecting the deck to the overhead suspension cable) failed. All of the suspender cables were X-rayed during the closure, and the three suspender cables, along with three neighboring suspender cables were replaced, with some damage noted to all suspender cables. A draft root cause investigation identified the potential for fatigue and corrosion damage in the overhead suspension cables. The final root cause concluded in 1990 that the suspender cables had failed in fatigue at the top of the socket connector to the bridge deck. Since the fatigue was caused by swaying in the overhead suspension cables relative to the bridge deck, all suspender cables were potentially vulnerable to fatigue failure. The most cost-effective repair that would maintain the aesthetic appearance of the current structure was complete replacement of the suspender cables on a periodic basis (estimated at 20–25 years).
A later study, completed in 2011, found that many components of the bridge were in good condition, with the notable exception of the original lead-based paint. The coating had failed, allowing some surface corrosion in many places. The 2011 study also found several fractured wires in the southern main suspension cable, which were promptly tested to determine the root cause of failure (determined to be fatigue) and to effect immediate repairs. The bridge was closed on weekends in the summer and fall of 2014 to remove the original lead-based paint and give it a fresh coat of international orange. The repainting and other minor repairs were slated to cost in excess of .
suspension bridge
A suspension bridge is a type of bridge in which the deck (bridge), deck is hung below suspension wire rope, cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridg ...
for pedestrian and bicycle traffic spanning the American River
, name_etymology =
, image = American River CA.jpg
, image_size = 300
, image_caption = The American River at Folsom
, map = Americanrivermap.png
, map_size = 300
, map_caption ...
in Sacramento
)
, image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg
, mapsize = 250x200px
, map_caption = Location within Sacramento ...
in Sacramento County
Sacramento County () is a county located in the U.S. state of California. As of the 2020 census, the population was 1,585,055. Its county seat is Sacramento, which has been the state capital of California since 1854.
Sacramento County is the ...
, California, linking the campus of California State University, Sacramento
California State University, Sacramento (CSUS, Sacramento State, or informally Sac State) is a public university in Sacramento, California. Founded in 1947 as Sacramento State College, it is the eleventh oldest school in the 23-campus California ...
with the neighboring Campus Commons development. It was designed to resemble the Golden Gate Bridge
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Pen ...
, both in form and signature international orange
International orange is a color used in the aerospace industry to set objects apart from their surroundings, similar to safety orange, but deeper and with a more reddish tone.
Variations of international orange
Aerospace
The Advanced C ...
color.
History
The Guy West Bridge is named after the first president of Sacramento State, Guy West. At the time of its opening in 1967, the Guy West Bridge was hailed as the longest pedestrian suspension bridge in the United States. The bridge cost approximately to construct, and it was named a special prize winner in the 1968 AISC steel bridges contest. Steel for the bridge was supplied by U.S. Steel, American Bridge Division inSouth San Francisco, California
South San Francisco is a city in San Mateo County, California, United States, located on the San Francisco Peninsula in the San Francisco Bay Area. The city is colloquially known as "South City". The population was 66,105 at the 2020 census. ...
.
Closures and repairs
The bridge was closed between May and July 1987 after three suspender cables (connecting the deck to the overhead suspension cable) failed. All of the suspender cables were X-rayed during the closure, and the three suspender cables, along with three neighboring suspender cables were replaced, with some damage noted to all suspender cables. A draft root cause investigation identified the potential for fatigue and corrosion damage in the overhead suspension cables. The final root cause concluded in 1990 that the suspender cables had failed in fatigue at the top of the socket connector to the bridge deck. Since the fatigue was caused by swaying in the overhead suspension cables relative to the bridge deck, all suspender cables were potentially vulnerable to fatigue failure. The most cost-effective repair that would maintain the aesthetic appearance of the current structure was complete replacement of the suspender cables on a periodic basis (estimated at 20–25 years).
A later study, completed in 2011, found that many components of the bridge were in good condition, with the notable exception of the original lead-based paint. The coating had failed, allowing some surface corrosion in many places. The 2011 study also found several fractured wires in the southern main suspension cable, which were promptly tested to determine the root cause of failure (determined to be fatigue) and to effect immediate repairs. The bridge was closed on weekends in the summer and fall of 2014 to remove the original lead-based paint and give it a fresh coat of international orange. The repainting and other minor repairs were slated to cost in excess of .
In media
References
External links
* * * * {{cite news , url=http://www.sfgate.com/bayarea/nevius/article/Replica-builder-sees-Golden-Gate-Bridge-for-real-3612328.php , title=Replica builder sees Golden Gate Bridge for real , author=Nevius, C.W. , date=6 June 2012 , newspaper=San Francisco Chronicle , access-date=10 June 2016 Bridges in Sacramento County, California Suspension bridges Pedestrian bridges in California Steel bridges in the United States Bridges completed in 1967 Bridges over the American River