2 posts tagged with mississippi by paulsc.
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What a difference a few seasons make.

Less than 20 months after the historic Spring 2011 (previously on MeFi) floods, the Mississippi River may be at similarly historic low levels and flow. Shipping commerce and even drinking water for towns and cities dependent on the Mississippi are under severe threat. [more inside]
posted by paulsc on Jan 11, 2013 - 10 comments

 

Saving Louisiana by Temporarily Drowning Some of It

The opening of the Morganza spillway on May 14 by the U.S. Corps of Engineers is not only a tacit admission of the severity of the river control problems the spring 2011 flood of the Mississippi River is creating, but also one of the last remaining measures the Corps has for protecting the Old River Control Structure, which has prevented the Mississippi from naturally diverting its main channel through the shorter, steeper Atchafalaya River channel, since construction of the control structure in the late 1960's. If the Old River Control Structure fails (as it nearly did in the 1973 floods), or the river overwhelms other nearby levees north or south of the Morganza spillway/ORCS, the main channel of the Mississippi could suddenly shift westward by about 100 miles, bypassing New Orleans and the current lower delta, with severe long term effects for the U.S. economy. [more inside]
posted by paulsc on May 14, 2011 - 148 comments

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