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Melvin Price Locks and Dam is a dam and two locks at river mile 200.78 on the Upper Mississippi River, about north of Saint Louis, Missouri. The collocated National Great Rivers Museum, at 1 Lock and Dam Way, East Alton, Illinois, explains the structure and its engineering. Construction began in 1979, the main lock opened in 1990, and the full structure was completed in 1994. It replaced the earlier Lock and Dam No. 26, demolished in 1990, and is the first replacement structure on the Upper Mississippi River nine-foot navigation project. The main lock is long and wide; the auxiliary is long and wide. The main lock has a vertical lift gate and a miter gate while the aux. lock has two miter gates. The dam is long with 9 tainter gates, each wide by high. It is named after Illinois Congressman Charles Melvin Price. File:Melvin Price Locks and Dam.jpg|Annotated image of the lock and dam File:Melvin Price Dam.jpg|Dam and locks from Missouri shore File:MPLD - P7100180.JPG|Close-up of the gates on the Melvin Price Lock & Dam ==References== *(Map of Melvin Price Locks and Dam area ) 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「Melvin Price Locks and Dam」の詳細全文を読む スポンサード リンク
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