Mississippi River Commission的动态

Check out our newest "Dredging Up the Past" post by esteemed MRC historian, Brian R., detailing the modern evolution of the Lower Mississippi River and the Mississippi River and Tributaries project! "The Master Plan" On October 27, 1965, Congress authorized a new master plan for the MR&T project. The plan was the product of more than a decade of research on the lower Mississippi River as described in the six-volume study published as House Document 308. The Mississippi River Commission, under President Maj. Gen. John Hardin, oversaw the study and published its main reports and recommendations in the mid-to-late 1950s. The Commission’s recommendations would go on to serve as the basis for the new master plan. The MR&T project had changed much since Congress authorized the “Jadwin Plan” in 1928. Cut-offs shortened the Mississippi 170 miles; the closure of Old River and the construction of the Old River Control Structure managed the flow distribution between the Mississippi and Atchafalaya Rivers; tributary basins now included headwater reservoirs, interior drainage improvements, and backwater protection; and the floodways through southeast Arkansas and northeast Louisiana had been eliminated. In short, the Jadwin Plan had evolved into the comprehensive Mississippi River and Tributaries project. The new plan also required a new project design flood and flowline as well as a new comprehensive master plan for its management. This master plan remains in place to this day. In 2020, Congress authorized the Mississippi Valley Division to undertake a five-year, $25 million mega study, the largest such study of the lower Mississippi River since the 1965 comprehensive review.

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Mississippi River Commission

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