【正文】 that eventually took hold was made in a 1916 San Francisco Bulletin article by former engineering student James Wilkins. San Francisco39。s City Engineer estimated the cost at $100 million, impractical for the time, and fielded the question to bridge engineers of whether it could be built for less. One who responded, Joseph Strauss, was an ambitious but dreamy engineer and poet who had, for his graduate thesis, designed a 55mile (89 km) long railroad bridge across the Bering Strait. At the time, Strauss had pleted some 400 drawbridges—most of which were inland—and nothing on the scale of the new 39。s initial drawings were for a massive cantilever on each side of the strait, connected by a central suspension segment, which Strauss promised could be built for $17 million. Local authorities agreed to proceed only on the assurance that Strauss alter the design and accept input from several consulting project experts.[citation needed] A suspensionbridge design was considered the most practical, because of recent advances in metallurgy. Strauss spent more than a decade drumming up support in Northern California. The bridge faced opposition – including litigation – from many sources. The Department of War was concerned that the bridge would interfere with ship traffic。 the navy feared that a ship collision or sabotage to the bridge could block the entrance to one of its main harbors. Unions demanded guarantees that local workers would be favored for construction jobs. Southern Pacific Railroad, one of the most powerful business interests in California, opposed the bridge as petition to its ferry fleet and filed a lawsuit against the project, leading to a mass boycott of the ferry service. In May 1924, Colonel Herbert Deakyne held the second hearing on the Bridge on behalf of the Secretary of War in a request to use Federal land for construction. Deakyne, on behalf of the Secretary of War, approved the transfer of land needed for the bridge structure and leading roads to the Bridging the Golden Gate Association and both San Francisco County and Marin County, pending further bridge plans by Strauss. Another ally was the fledgling automobile industry, which supported the development of roads and bridges to increase demand for automobiles. The bridge39。s name was first used when the project was initially discussed in 1917 by . O39。Shaughnessy, city engineer of San Francisco, and Strauss. The name became official with the passage of the Golden Gate Bridge and Highway District Act by the state legislature in 1923. Preliminary discussions leading to the eventual building of the Golden Gate Bridge were held on January 13, 1923, at a special convention in Santa Rosa, CA. The Santa Rosa Chamber was charged with considering the necessary steps required to foster the construction of a bridge across the Golden Gate by then Santa Rosa Chamber President Frank Doyle (the street Doyle Drive leading up to the bridge is named after him). On June 12, the Santa Rosa Chamber voted to endorse the actions of the Bridging the Golden Gate Association by attending the meeting of the Boards of Supervisors in San Francisco on June 23 and by requesting that the Board of Supervisors of Sonoma County also attend. By 1925, the Santa Rosa Chamber had assumed responsibility for circulating bridge petitions as the next step for the formation of the Golden Gate Bridge.[citation needed] Design South tower seen from walkway Strauss was chief engineer in charge of overall design and construction of the bridge project. However, because he had little understanding or experience with cablesuspension designs, responsibility for much of the engineering and architecture fell on other experts. Strauss39。 initial design proposal (two double cantilever spans linked by a central suspension segment) was unacceptable from a visual standpoint. The final graceful suspension design was conceived and championed by New York’s Manhattan Bridge designer Leon Moisseiff. Irving Morrow, a relatively unknown residential architect, designed the overall shape of the bridge towers, the lighting scheme, and Art Deco elements such as the streetlights, railing, and walkways. The famous International Orange color was originally used as a sealant for the bridge. Many locals persuaded Morrow to paint the bridge in the vibrant orange color instead of the standard silver or gray, and the color has been kept ever since. The US Navy had wanted it to be painted with black and yellow stripes to ensure visibility by passing ships. Senior engineer Charles Alton Ellis, collaborating remotely with Moisseiff, was the principal engineer of the project. Moisseiff produced the basic structural design, introducing his deflection theory by which a thin, flexible roadway would flex in the wind, greatly reducing stress by transmitting forces via suspension cables to the bridge towers. Although the Golden Gate Bridge design has proved sound, a later Moisseiff design, the original Taa Narrows Bridge, collapsed in a strong windstorm soon after it was pleted, because of an unexpected aeroelastic flutter. Ellis was a Greek scholar and mathematician who at one time was a University of Illinois professor of engineering despite having no engineering degree (he eventually earned a degree in civil engineering from University of Illinois prior to designing the Golden Gate Bridge and spent the last twelve years of his career as a professor at Purdue University). He became an expert in structural design, writing the standard textbook of the did much of the technical and theoretical work that built the bridge, but he received none of the credit in his lifetime. In November 1931, Strauss fired Ellis and replaced him with a former subordinate, Clifford Paine, ostensibly for wasting too much money sending telegrams back and forth to Moisseiff. Ellis, obsessed with the project and unable to find work elsewhere during the Depression, continued working 70