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在控制洪水方面,密西西比河是第一条受到注意的大河。密西西比河及其一些主要支流,如密苏里河、俄亥俄河和田纳西河,都有一些在世界都算得上很大的防洪工程。密西西比河是世界上资源最丰富、但也是潜在的破坏力最大的河流之一。它的流域遍及130万平方英里面积的土地,占美国本土面积的五分之二。密西西比河全长3710英里,沿途共有250条支流。它每年均以610000立方英尺/秒的流率流进墨西哥湾。就在阿肯色河与主流汇合的入口处的下游,最高流率几乎达到300万立方英尺/秒。密西西比河由伊利诺斯州蜿蜒流至路易斯安那州,因为洪水泛滥,把泥沙夹带到相连的各三角洲,造
The Mississippi is the first river of attention to controlling flooding. The Mississippi and some of its major tributaries, such as the Missouri, Ohio, and Tennessee Rivers, have some flood protection projects that are considered world-wide. The Mississippi is one of the most resource-rich but potentially potentially devastating rivers in the world. Its catchment covers 1.3 million square miles of land, accounting for two-fifths of the native U.S. area. The Mississippi River is 3710 miles long and has 250 tributaries along the way. It flows into the Gulf of Mexico annually at a rate of 610,000 cubic feet per second. Just downstream of the Arkansas River’s convergence with the mainstream, the maximum flow rate is almost 3 million cubic feet per second. The Mississippi meanders from Illinois to Louisiana because of flooding, which entrains the sediment into the contiguous delta