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The Evergreen Point Floating Bridge, officially the Governor Albert D. Rosellini Bridge, and commonly called the SR 520 Bridge or 520 Bridge, is a floating bridge in the U.S. state of Washington that carries State Route 520 across Lake Washington from the Montlake/Union Bay district of Seattle to Medina. The bridge's total length is approximately .〔USGS map〕 Its 〔(WSDOT - SR 520 Bridge Facts ). Washington State Department of Transportation. Accessed 22 May 2011.〕 floating section is the longest floating bridge in the world. The Evergreen Point of the bridge's original name is the westernmost of the three small Eastside peninsulas that SR 520 crosses. (The other two are Hunts Point and Yarrow Point.) In 1988, it was renamed for the state's 15th governor, Albert D. Rosellini, who had advocated its construction. The existing bridge is aging and in poor condition. Construction on a replacement began in 2012 and the new bridge is scheduled to open in 2016. ==History== The bridge was opened for commuter traffic on August 28, 1963, after three years of construction. It was built as a four-lane toll bridge to provide easy access from Seattle to Eastside communities such as Bellevue, Kirkland, and Redmond. The total cost of the bridge, in 1961 dollars, was $21 million (at least $127 million in 2011 dollars〔 Using the "Project" costs.〕). To make up for this cost, commuters paid a 35-cent toll in each direction until 1979. The toll booths were then converted into bus stops. The bridge affected many communities on the Eastside. Redmond's population saw a dramatic increase, jumping from less than 1,500 in 1960 to 11,000 in 1970.〔City of Redmond, , 2005〕 It was the second floating bridge to cross Lake Washington; the first was the Lake Washington Floating Bridge, built in 1940 as part of U.S. Route 10, later part of Interstate 90, which at its construction was the largest floating structure ever built. In 1989, an electrical fault caused the drawspan to open during rush hour, causing one death and five injuries. In 2000, a gravel barge struck the bridge, closing it for eleven days and causing $500,000 worth of damage. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Evergreen Point Floating Bridge」の詳細全文を読む スポンサード リンク
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