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原文传递 Lt. Gov. Nungesser Questions Louisiana CPRA Marsh-Building Strategy

题名：	Lt. Gov. Nungesser Questions Louisiana CPRA Marsh-Building Strategy
正文语种：	eng
作者：	CAPT. RICHARD EBERHAHDT
摘要：	The state of Louisiana has lost in excess of 2,000 square miles of land to the Gulf of Mexico since the 1930s. In an effort to restore some of the land loss, the state created the Coastal Protection and Restoration Authority (CPRA) to develop plans to not only prevent land loss but to rebuild the land. One significant proposal is to divert Mississippi River water, with its sediment, into the surrounding marshes with the intent of that sediment building land, much as the natural process did before flood-control levees restricted the annual flooding river by limiting the overflow within its banks and adjacent batture. The Mid-Breton Sediment Diversion on the east bank near Wills Point about Mile 70 AHP (Above Head of Passes) and a similar Mid-Barataria Sediment Diversion on the west bank of the Mississippi River further south near Myrtle Grove (approximately Mile 55) are designed in hopes of building new land along Louisiana's fragile coast. Since the inception of the Mid-Breton Sediment Diversion, its capacity has grown from 5,000 cubic feet per second (cfs.) in the 2012 Coastal Master Plan to 35,000 cfs. in the 2017 Coastal Master Plan. Then in 2020, in the proposal submitted for the federal permitting process, the CPRA again increased the flow to 75,000 cfs.
出版年：	2022
期刊名称：	The Waterways Jouranl
卷：	135
期：	43
页码：	11-12