Dozens of lawsuits seeking damages from the federal government for Hurricane Katrina-related levee failures and flooding in the New Orleans area are over. U.S. District Judge Stanwood Duval Jr. has dismissed the cases. The move comes more than a year after a federal appeals court overturned his ruling that held the U.S. Army Corps of Engineers liable for flooding caused by lax maintenance of a shipping channel. Duval has also dismissed a parallel lawsuit against a contractor. It claimed excavation work weakened flood walls in New Orleans’ Industrial Canal.