New Orleans W, Louisiana 1:24,000-scale

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Go to the Map Locator and Downloader and search "New Orleans W".
Why is most of New Orleans below sea level? Discuss how humans have impacted the environment.
Why were the artificial levees constructed? Discuss the differences between natural and artificial levees.
Why is New Orleans located where it is? Use smaller scale maps (1:100,000 and 1:250,000-scale) in conjunction with this one to discuss the terms "site" vs "situation."
What would be the most common natural hazard posed to this area? What would be the effect of a hurricane in this area? After a flood, how much of the area would be under water if all the levees were ruptured? Show before-and-after Hurricane Katrina photographs. Discuss what areas of the city became flooded. Does the actual flooding that occurred agree with your assessment of what would be flooded based on your analysis of the topographic maps?