COMMUNICATING RISK-POST KATRINA BY PETE CALI Assignment

COMMUNICATING RISK-POST KATRINA BY PETE CALI - denomination ExampleThe 1978 map below shows the impact of the growth population on the sypress swamp areas are more(prenominal) land was reclaimed to pave way for resettlement implying that the city was except protected from any hurricane flooding. The encroachment and growth of the population behind the hurricane protection system indicates the level of confidence the people had in the engineering projects to protect them from floods.The Katrina had devastating effects in the city of newfound siege of Orleans. Firstly, ninety-five percent of homes in fresh Orleans East were flooded while 10,000 homes in the Greater New Orleans area were unmake. Secondly, the Katrina destroyed vital infrastructure such as roads, sewerage, gas and water pumping stations, hospitals and public transportation. Thirdly, the Katrina destroyed approximately one hundred sixty miles of flood protection levees and floodwalls at the London Avenue Canal, the Inner Harbor Navigation Canal and the seventeenth Street Canal.According to Pete Cali, the Katrina caused 50 breaches in the hurricane protection system. Forty-six of these breaches were caused by overtopping that caused excessive scour at the floodwall base or levee toe and four were caused by floodwall failures due to water loads within the name conditions. Cali argues that these failures were imbedded in three engineering mistakes namely insufficient levee height, the use of substandard soil in the edifice of the levee and inadequate definition of possible failure mechanisms.Despite the devastating impact of the Katrina on the city of New Orleans, it is imperative to note that the heart of the City, especially the French Quarter, the Garden District and the Saint Charles Avenue were spared from surd damage. However, the damage can still be felt in the Ninth Ward and the New Orleans East whose water supply and sewerage system is yet to be repaired and the housing facilities ar e barely enough to accommodate half the pre-Katrina population. Due to the limitations in the tax revenue,