Original sentence: In Louisiana, the flood protection system in New Orleans failed in 53 different places.Nearly every levee in metro New Orleans breached as Hurricane Katrina passed east of the city, subsequently flooding 80% of the city and many areas of neighboring parishes for weeks
Edited sentence: In metro New Orleans, the federal flood protection system failed in 53 different locations subsequently flooding 80% of the city and many areas of neighboring parishes for weeks.The design and construction of New Orleans' flood protection is by congressional mandate, the sole responsibility of the US Army Corps of Engineers in the Flood Protection Act of 1965