u.s. army corps of engineers is expected to open the floodgates on the morganza spillway. the plan is to slowly divert floodwaters away from baton rouge and new orleans. the spillway has not been opened in nearly 40 years. the move will flood other areas in south central louisiana. and this map right here you re about to see it, it says it all. areas in yellow could get up to 20 feet of water and green up to 15 feet. we ll have live coverage of a briefing by the u.s. army corps of engineers at 2:00 eastern time. in areas like morgan city, louisiana, could get disastrous flooding. morgan city is protected by flood walls. but those walls could fail. the city s mayor talked about his concerns with her ed lavandera. reporter: are you worried about it flooding? this is the heart of the city. it is. and it s primarily protected by that wall right there. it would take a failure of that wall, i think, before this would really be at risk. what we re really concerned about is tha