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The Mississippi River Basin Model Waterways Experiment Station, located near Clinton, Mississippi, was a large-scale hydraulic model of the entire Mississippi River basin, covering an area of 200 acres. The model was built from 1943 to 1966 and in operation from 1949 until 1973. By comparison, the better known San Francisco Bay Model covers 1.5 acres and the Chesapeake Bay Model covers 8 acres.〔(【引用サイトリンク】url=http://clui.org/ludb/site/mississippi-hydraulic-model )〕 The model is now derelict, but open to the public within Buddy Butts Park, Jackson. == Background == Large scale, localised flood control measures such as levees had been constructed since the early 1900s, especially in the decade after the Great Mississippi Flood of 1927 and following the Flood Control Act 1936.〔 From 1928 onwards, the Army Corps of Engineers built a huge number of locks, run-off channels and extended and raised existing levees, but these control measures only targeted single sites, and did not look at the entire river system. There had already been extensive modelling of individual sections of the river at the Waterways Experiment Station in Vicksburg, including a 1060 ft long model of the 600 river miles from Helena, Arkansas to Donaldsonville, Louisiana,〔 〕 but in early 1937 it was clear that impact of control measures were not completely successful. In 1941 Eugene Reybold proposed a large-scale hydraulic model which would allow the engineers to simulate weather, floods and evaluate the effect of flood control measures on the entire system. This would cover approximately 200 acres, include all existing and proposed control measures, and a network of streams nearly 8 miles in total length.〔 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「Mississippi River Basin Model」の詳細全文を読む スポンサード リンク
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