A Tale of Two Bridges The San Francisco?Oakland Bay Bridges of 1936 and 2013【電子書籍】[ Stephen Mikesell ]

＜p＞＜em＞A Tale of Two Bridges＜/em＞ is a history of two versions of the San FranciscoーOakland Bay Bridge: the original bridge built in 1936 and a replacement for the eastern half of the bridge finished in 2013. The 1936 bridge revolutionized transportation in the Bay Area and profoundly influenced settlement patterns in the region. It was also a remarkable feat of engineering. In the 1950s the American Society of Civil Engineers adopted a list of the “Seven Engineering Wonders” of the United States. The 1936 structure was the only bridge on the list, besting even the more famous Golden Gate Bridge. One of its greatest achievements was that it was built on time (in less than three years) and came in under budget. Mikesell explores in fascinating detail how the bridge was designed by a collection of the best-known engineers in the country as well as the heroic story of its construction by largely unskilled laborers from California, joined by highly skilled steel workers.＜/p＞ ＜p＞By contrast．．．楽天市場のショップで商品詳細の続きを見る