Actions Are Needed to Help Resolve Environmental and Flooding
Concerns about the Use of River Training Structures Gao ID:
GAO-12-41 December 9, 2011 For more than 130 years the U.S. Army
Corps of Engineers (Corps) has used dikes to "train" the
Mississippi River channel and maintain adequate depth for
navigation. The Corps relies heavily on these structures--
including some with more recent designs--in the Middle
Mississippi, between the confluences of the Missouri and Ohio
Rivers...Show More Summary For more than 130 years the U.S. Army
Corps of Engineers (Corps) has used dikes to "train" the
Mississippi River channel and maintain adequate depth for
navigation. The Corps relies heavily on these structures--
including some with more recent designs--in the Middle
Mississippi, between the confluences of the Missouri and Ohio
Rivers. Over the past few decades, some researchers have raised
concerns about the structures' cumulative impacts on the
environment and the height of floodwaters. For the Corps' river
trainin