Full Title: Database showing lower New Orleans levee heights incorrect, officials say; overtopping unlikely Officials with the Army Corps of Engineers are disputing data in a corps database that shows numerous sections of Mississippi River levee in New Orleans and points downriver fall short of the 20-foot height at which forecasters expect the river to crest Saturday. Ricky Boyett, a corps spokesman, said late Wednesday that the corps’ New Orleans District office show levee elevations in the Lower 9th Ward at “between 20 and 21 feet.” He added that the agency’s modeling “does not show overtopping of the levees in...