International emblematic bridge
Introduction
The Golden Gate Bridge (Spanish: Puente de Puerta de Oro) is a suspension bridge located in California, United States, which connects the San Francisco Peninsula in the north with southern Marin County, near Sausalito "Sausalito (California)"). Golden Gate is also the name of the strait in which the bridge is built, and receives its name from the strait in Constantinople, also called the Golden Gate, since it connected Europe with Asia.[1].
The Golden Gate is the most famous bridge in San Francisco "San Francisco (California)") despite not being the largest in this city, since the Bay Bridge is the main thoroughfare.
In the decade after World War I, road traffic in the San Francisco Bay region increased sevenfold, so the ferry system was unable to absorb that growth. Listed as a suspension bridge, built between 1933 and 1937, with an approximate length of 1,280 meters, it is suspended from two towers 227 m high. It has a six-lane road (three in each direction) and has protected lanes accessible for pedestrians and bicycles. The bridge is used to cross power lines and fuel lines. Under its structure, it leaves 67 m of height for the passage of ships through the bay "Bahia (geography)"). The Golden Gate was the greatest engineering work of its time. It was painted with great urgency to prevent the rapid oxidation produced by the Pacific Ocean in the steel of its structure.
History
The Golden Gate Bridge and Highway District was authorized by an act of the California Legislature in 1928 as the official entity to design, build and finance the Golden Gate Bridge. However, after the Crash of '29, the District was unable to raise construction funds, so they pushed for $30 million worth of bonds to be sold. The bonds were approved in November 1930 with the votes of the counties affected by the bridge. The construction budget at the time of approval was $27 million. However, the District was unable to sell the "Bono (finance)" bonds until 1932, when Amadeo Giannini, founder of the San Francisco-based Bank of America, agreed, on behalf of his bank, to purchase the entire outstanding amount in order to help the local economy. The US federal government did not intervene in financing the construction costs of the bridge.
Construction began on January 5, 1933. The bridge cost more than $35 million to build. The chief engineer of the project was Joseph Strauss "Joseph Strauss (engineer)"). Strauss remained at the head of the project, supervising construction day to day and made some innovative contributions. An innovation was made in the use of mobile safety nets underneath the construction site, which saved the lives of many steel workers who would have died without this protection. Of eleven men killed by falls during construction, ten died (when the bridge was nearing completion) when the netting gave way under the pressure of a fallen scaffold; Nineteen others were saved by this network throughout construction.