Alarming predictions of as many as 10,000 dead in New Orleans may have been greatly exaggerated, with authorities saying Friday that the first street-by-street sweep of the swamped city revealed far fewer corpses than feared. "Some of the catastrophic deaths that some people predicted may not have occurred," said retired Marine Col. Terry Ebbert, the city's homeland security chief. The Associated Press said he declined to give a revised estimate. But he added: "Numbers so far are relatively minor as compared to the dire projections of 10,000." The encouraging news came as workers repairing New Orleans' system of levees and water pumps projected Friday that it will take a month to dry out the city ravaged by Hurricane Katrina. Authorities officially shifted most of their attention to counting and removing the dead after spending days cajoling, persuading and all but strong-arming the living into leaving the city because of the danger of fires and disease from the fetid floodwaters. Ever since the hurricane struck Aug. 29, residents, rescuers and cadaver-sniffing dogs have found bodies floating in the waters, trapped in attics or left lying on broken highways. Some were dropped off at hospital doorsteps or left slumped in wheelchairs out in the open. Mayor Ray Nagin suggested last weekend that "it wouldn't be unreasonable to have 10,000" dead, and authorities ordered 25,000 body bags. But soldiers who had been brought in over the past few days to help in the search were not seeing that kind of toll. "There's nothing at all in the magnitude we anticipated," said Maj. Gen. Bill Caldwell, commander of the Army's 82nd Airborne Division.