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The ''Keiler'' is a new river icebreaker commissioned in December 2011 to serve as the flagship of Lauenburg's Water and Shipping Authority fleet of ten icebreakers, on the Elbe River.〔 (mirror ) 〕〔 (mirror ) 〕 The vessel is long and wide. She will be staffed by a crew of four, and has sleeping and dining accommodation, for operations that take longer than a single shift. She is the first icebreaker built for the water authority in 24 years.〔 In February of 2012 the upper reaches of the Elbe were beset by the worst ice jams since 1987.〔 (mirror ) 〕〔 〕 The jams were 20 kilometers long, and upstream communities faced flooding as water built up behind the ice dams. The ''Keiler'' and sister ships ''Büffel'', ''Widder'', and ''Wisent'' were dispatched from their normal stations to attack the ice jam. They had to be careful blocks of ice they freed did not form jams downstream. This crisis represents the first time the water authorities icebreakers were used at night.〔 (mirror ) 〕 ==References== 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「Keiler」の詳細全文を読む スポンサード リンク
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