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Swoboda Lock is the seventh lock on the Augustów Canal (from the Biebrza). It is situated amidst the Augustów Forest near Lake Studzieniczne. Built between 1826 and 1827 by Lt.-Col. Eng. Jan Paweł Lelewel. In the 1960s has undergone modernization involving the replacement of original wooden gates with metal crank-driven mechanism raised, reinforced concrete bridge was built a distinctive and concreting awanportu. New system to move the gates did not work and was later by one of the membranes removed, and replaced the original system of drawbars. * Location: 47.4 km channel * Level difference: 1.7 m * Length: 45.77 m * Width: 5.95 m * Gates: metal * Year of construction: 1826–1827 * Construction Manager: Lt.-Col. Eng. John Paul Lelewel ==References== * (【引用サイトリンク】 opracowanie nt kanału Augustowskiego znajdujące się na stronach Regionalnego Zarządu Gospodarki Wodnej w Warszawie ) * * 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「Swoboda Lock」の詳細全文を読む スポンサード リンク
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