you may have the same type of situation going on in the Mississippi valley due to some of the priority changes.
The dams on the Mississippi were never planned to control flooding. It’s always been to keep a 9′ channel open for commercial traffic.
I can’t speak of the dams upstream of Lock and Dam #3 but Red Wing has had all of it’s rollers up out of the water allowing as much water as possible to head down stream. I very much doubt they are holding anything back down stream as the Corp would be concerned about damage to the dam.
I spoke with one River Rat that’s been on Pool 4 since the 50’s and he >felt< there isn’t any more or less flooding then in the past. I on the other hand with only 15 years under my belt, feels like the OP. Whether it floods or not, the river rises faster then it did in my past.