The United States Coast Guard reopens a section of the Mississippi River to shipping that was closed on Tuesday as a result of the 2011 Mississippi River floods.
A United States Army Combat Aviation Brigade UH-60 Black Hawk helicopter crashes off the coast of Hawaii, with five people on board. A United States Coast Guard-led search for the missing is underway.
The United States National Transportation Safety Board (NSTB) has asked the U.S. Navy to resume the search ended by the U.S. Coast Guard for the merchant vessel SS "El Faro" believed lost on October 7 during Hurricane Joaquin. The loss of the ship — with its crew of 33 hands — is regarded as “the worst U.S. merchant marine disaster of recent memory.”
The Morganza Spillway on the Mississippi River is opened for the second time in its history, deliberately flooding 3,000 sqmi of rural Louisiana and placing a nuclear power plant at risk to save most of Baton Rouge and New Orleans.
Mississippi River flooding worsens, with the Army Corps of Engineers saying an area between Simmesport, Louisiana and Baton Rouge will be submerged 20-30 feet, and 13% of US oil refinery output disrupted. [http:--www.businessweek.com-news-2011-05-10-mississippi-flooding-threatens-crops-refineries-and-homes.html "(Business Week)"]