Thursday 27th May 1937

Week long celebrations began to mark the opening of the Golden Gate Bridge, connecting San Francisco with Marin County, California, US. Approximately 200,000 people crossed the bridge in honor of its opening, paying a sum of $0.25 to cross. The following day traffic was allowed on the bridge, which was constructed from January 1933 to May 1937. At the time, it was the longest suspension bridge in the world, at 4,200 feet. Following the Gold Rush boom that began in 1849, speculators realized the land north of San Francisco Bay would increase in value in direct proportion to its accessibility to the city. Soon, a plan was hatched to build a bridge that would span the Golden Gate, a narrow, 400-foot deep strait that serves as the mouth of the San Francisco Bay, connecting the San Francisco Peninsula with the southern end of Marin County. Although the idea went back as far as 1869, the proposal took root in 1916. A former engineering student, James Wilkins, working as a journalist with the San Francisco Bulletin, called for a suspension bridge with a center span of 3,000 feet, nearly twice the length of any in existence. Wilkins’ idea was estimated to cost an astounding $100 million. So, San Francisco’s city engineer, Michael M. O’Shaughnessy (he’s also credited with coming up with the name Golden Gate Bridge), began asking bridge engineers whether they could do it for less. Engineer and poet Joseph Strauss, a 5-foot tall Cincinnati-born Chicagoan, said he could. Eventually, O’Shaughnessy and Strauss concluded they could build a pure suspension bridge within a practical range of $25-30 million with a main span at least 4,000 feet. The construction plan still faced opposition, including litigation, from many sources. By the time most of the obstacles were cleared, the Great Depression of 1929 had begun, limiting financing options, so officials convinced voters to support $35 million in bonded indebtedness, citing the jobs that would be created for the project. However, the bonds couldn’t be sold until 1932, when San-Francisco based Bank of America agreed to buy the entire project in order to help the local economy.In May 1987, as part of the 50th anniversary celebration, the Golden Gate Bridge district again closed the bridge to automobile traffic and allowed pedestrians to cross the bridge. However, this celebration attracted 750,000 to 1,000,000 people, and ineffective crowd control meant the bridge became congested with roughly 300,000 people, causing the center span of the bridge to flatten out under the weight.[36] Although the bridge is designed to flex in that way under heavy loads, and was estimated not to have exceeded 40% of the yielding stress of the suspension cables, bridge officials stated that uncontrolled pedestrian access was not being considered as part of the 75th anniversary on Sunday, May 27, 2012, because of the additional law enforcement costs required “since 9/11”