Detailed text transcripts for TV channel - CNN - 20110511:10:42:00
Managing flow to keep barge traffic moving and commerce moving? >> yeah. you know, the lock and dam system is critical to maintain commerce and that's an important asset for the nation, but the lock and dam system actually does come at some costs when it comes to flood management. those locks and dams and actually a whole lot of other structures within the channel, actually raise the flood level over time and actually make matters a bit worse when it comes to flooding. >> let's talk about ecological damage. you talk about -- i mentioned sewage treatment plants and all these things along the ba...