The mass evacuation of New Orleans hospitals following Hurricane Katrina was not primarily driven by the wind damage from the storm itself, but by thenear total collapse of area infrastructurethat occurred in the days following the levee breaches. While the hospitals generally withstood the hurricane winds (Option A), they were not prepared for the catastrophic failure of the city's power, water, sewage, and transportation systems.
As the city flooded, hospitals became "islands" cut off from all support. The infrastructure collapse manifested in several critical ways:
Power Failure:Basement-level generators were flooded, and the municipal grid was destroyed, leaving hospitals without climate control, ventilators, or diagnostic equipment.
Water/Sewage Failure:The loss of water pressure meant no potable water for patients and no way to flush toilets, creating a biohazard and "unbearable" sanitary conditions.
Logistical Isolation:Flooded roads meant that supplies of food, oxygen, and medicine could not be replenished by truck, and the heat in the uncooled buildings (reaching over 100°F) posed a direct threat to life.
According to theAfter-Action Reportsanalyzed in theCEDPcurriculum, the "Katrina Lesson" is that a building is only as resilient as the infrastructure surrounding it. Hospitals were forced to evacuate patients—often by helicopter from parking garage roofs—because they could no longer fulfill their clinical mission in a collapsed environment. This event led to a national shift in hospital preparedness standards (underHPPandCMS), mandating that healthcare facilities have "redundancy for their redundancies," including elevated generators and independent water wells, to survive a total infrastructure blackout.
