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|toll = |map_cue = |map_image = |map_text = |map_width = |coordinates = |lat = |long = }} The Kate Shelley High Bridge, officially called the Boone Viaduct when it was completed in 1901, was one of the highest and longest double-track railroad bridges in the United States. It is located approximately west of Boone, Iowa. It was nicknamed for the Iowa railroad heroine, Kate Shelley, also spelled Shelly. In 1881, when she was 17 years old, Kate Shelley risked her life to warn a passenger train by crossing the Des Moines River Bridge near Moingona at night, during a thunderstorm. Her goal was to warn the passenger train that the next bridge was out. That train had already been stopped. She then led rescuers to two men still in the swollen, flooded Honey Creek near her house, and they were saved. Her bravery was heralded in many newspapers.〔http://www.kateshelley.com/about-kate.html〕 The bridge was designed by George S. Morison for the Chicago & North Western Railway and was constructed from 1899 to 1901.〔W.C. Armstrong, The Boone Viaduct, (The Iowa Engineer ), Vol. 1, No. 1 (June 1901); pages 6-19〕 It stands above the Des Moines River and is long. The bridge was never officially renamed for Kate Shelley, but there were many commemorations there to honor her as if it carried that name. Gradually it became better known as the Kate Shelley High Bridge, or just the Kate Shelley Bridge, and the popularity of the Boone Viaduct name faded. == History == By the mid-1950s, traffic on the bridge was limited to one train at a time.〔(AREMA - Rehabilitation of the Historic Kate Shelley High Bridge )〕 In 1986, some of the bridge towers were damaged in a wind storm.〔 Union Pacific Railroad is the current owner of the bridge, and starting in 2001, they undertook an inspection and repair program; this resulted in both tracks being opened again, but with a slow order.〔 The bridge is located on an east/west Union Pacific main line—the Overland Route〔(UPRR Common Line Names )〕—connecting Chicago to the west coast.〔(Union Pacific in Iowa )〕 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「Kate Shelley High Bridge」の詳細全文を読む スポンサード リンク
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