Wunderground: America’s Achilles’ Heel: the Mississippi River’s Old River Control Structure

America has an Achilles’ heel. It lies on a quiet, unpopulated stretch of the Mississippi River in Louisiana, 45 miles upstream from Baton Rouge. Rising up from the flat, wooded west flood plain of the Mississippi River are four massive concrete and steel structures that would make a pharaoh envious: the U.S. Army Corps of Engineers’ greatest work, the two billion-dollar Old River Control Structure (ORCS). The ORCS saw its second highest flood on record in March 2019, and flood levels have risen again this week to their fifth highest level on record. While the structure is built to handle the unusual stress this year’s floods have subjected it to, there is reason for concern for its long-term survival, since failure of the Old RIver Control Structure would be a catastrophe with global impact.

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