稳定密西西比河床的计划，已进行了１００多ａ，但尚未完成。陆军工程师团的目标是在本世纪末之前结束此项工作。该计划是在河道薄弱处，如河弯外侧铺设宽为４３ｍ，长为１２２～１８３ｍ的铰接混凝土垫层，以稳定河势，并保证最小航深２．７４ｍ。该计划约从１８９０年起... Plans to stabilize the Mississippi River bed have been carried out for more than 100 years, but have not yet been completed. The goal of the Army Corps of Engineers is to conclude this work by the end of this century. The plan is to lay a hinged concrete cushion of 43m wide and 122 ~ 183m long on the outer side of river bend at the weak river channel to stabilize the river regime and ensure a minimum flight depth of 2.74m. The plan has been around since 1890 ...