morgan city is protected by flood walls. those walls could fail. the city's mayor talked about his concerns with our ed lavandera. >> are you worried about it flooding? this is the heart of the city right here. >> it is the heart of the city, primarily protected by that wall right there. it would take a failure of that wall before this would be at risk. what we're really concerned about is that high river stage raising the water level back where the lake is, and if that got topped, because that level of protection is not nearly as high as that, if that got topped, the water is going to flow throughout the city. it won't be held within a particular compartment of the city. we're an island, the river on one side and both our eastern boundaries and south even boundaries is the river, the northern and western boundaries is the lake. >> this water threat surrounds you? >> absolutely. it's starting to lap up under the planks of the wharf.