The city's designation of the Louisiana Superdome as a "shelter of last resort" proved poor. It did not meet the safety standards required for a Red Cross shelter and thus it was not staffed by them or the Salvation Army. It was already known that the generators did not have enough capacity to provide lights and air conditioning for the entire dome in case of a power failure, and also pumps providing water to second-level restrooms wouldn't function. Thousands were trapped inside it as the area around it flooded and part of the roof blew off. Provisions for supplies were just barely adequate; sanitation, medical, and crowd control were worse. Since there was no flood-based federal nor state plan, heavy lift capacity helicopters that could have brought 16 tons of water, medical and food per flight were nowhere to be found. The much less effective hurricane-only response utilized much smaller UH and Black Hawk helicopters.