Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US to Open Spillway to Protect New Orleans, Industrial Operations VOA News May 14, 2011 The Morganza Spillway, center, which allows water from the Mississippi River to divert into the Atchafalaya Basin, is seen from the air in Morganza, Lousianna, May 12, 2011. Photo: AP The Morganza Spillway, center, which allows water from the Mississippi River to divert into the Atchafalaya Basin, is seen from the air in Morganza, Lousianna, May 12, 2011. U.S. Army engineers are preparing Saturday to open a massive spillway along the Mississippi River to divert flood waters away from the densely populated cities of Baton Rouge and New Orleans. Opening the spillway, however, will flood tens of thousands of hectares of farmland and rural property elsewhere in Louisiana, affecting 25,000 people and threatening 11,000 buildings. The Morganza Spillway has only been opened once before, in 1973. Louisiana Governor Bobby Jindal said his state will do everything it can to protect people and property in the flood zone. But he warned residents in the path of the flood, "Now's the time to evacuate. That water's coming." The Red Cross says it has ample shelters to accommodate residents who could be forced out of their homes for several weeks until the water recedes. The U.S. Army Corps of Engineers said there will be a slow opening of the spillway, located upstream from the Louisiana capital, Baton Rouge. But eventually some areas below the spillway could be inundated with more than seven meters of water. Officials hope the release of floodwaters into the rural areas and backwater bayous will take pressure off downstream levees protecting Baton Rouge and New Orleans, as well as help protect numerous oil refineries and chemical plants along the lower reaches of the Mississippi River. One Army engineer said the water flow from the swollen river is so massive and intense that the 85,000-seat sports stadium in New Orleans would be filled with water in 50 seconds. In the neighboring state of Mississippi, officials warn the rising river could flood catfish farms, endangering a $200 million-a-year business. Cotton crops are also at risk. U.S. President Barack Obama plans to visit to the flood zone on Monday. He will tour Tennessee's largest city, Memphis, where the Mississippi River crested at near record levels earlier this week. New Orleans is still recovering from devastation it sustained from Hurricane Katrina in 2005. Many sections of the city have not been rebuilt, and thousands of residents who left have not returned. Some information for this report was provided by AP, AFP and Reuters. .