Between the Missouri and Mississippi Rivers. Between the Iowa and Cedar. Between the Des Moines and Skunk. I've lived or worked by them all. (Except the Missouri - that one doesn't count.) And fought floods against two of them more than once.
The state Legislature passed a bill in 2005 that would have creating a permitting process, but Gov. Jim Doyle vetoed it. Now, with Republican control of the State Senate and Assembly, Gov. Scott Walker is signaling he would support a similar bill.