The Corps is proposing to use the fly ash as part of a lime slurry mixture for some kind of grouting to stabilize the levees according to the article. Environmentalists are concerned about the potential impacts of residual toxins in the fly ash. However, they are drawing comparisons to the TVA coal ash dam failure. From my perspective, this is an unfair comparison since this fly ash would be mixed with lime and in theory any toxins would be bound up in the grout matrix. But it never hurts to be cautious regarding potential contaminants that close to such an important waterway. [Source: bnd.com via ASCE SmartBrief]
Corps Releases New Risk Maps for the New Orleans Area;
Powell Releases New Costs for 100-Year Hurricane Protection
Administration to work with Congress for additional drainage measures beyond 100-year commitment
NEW ORLEANS (August 22, 2007) – Federal Coordinator for Gulf Coast Rebuilding Donald E. Powell and U.S. Army Corps of Engineers Director of Civil Works Maj. General Don T. Riley today detailed the improved hurricane protection that will be provided to New Orleans area residents once the city’s levees are built to the 100-year level. In addition, Powell announced $6.3 billion of further funding needed for improved protection for the New Orleans area and the Administration’s plan to secure necessary funds to complete the work by 2011.
[Editor] Photo by greenmannowar [/Editor]
USACE responds to TIME magazine’s August 13, 2007, cover story, "The Threatening Storm"
WASHINGTON (August 13, 2007) – TIME magazine’s August 13, 2007, cover story, "The Threatening Storm," contains many errors and misrepresentations of facts with respect to the U.S. Army Corps of Engineers, Hurricane Katrina, and ongoing efforts to improve hurricane and storm damage reduction for southeast Louisiana.