This stuff is wildly complicated and really interesting. Here's an article that describes a disastrous and likely shift in the river's course, and the controversial mitigation efforts of the Corp of Engineers.
biggerpieforum.org
Also, if Rising Tide is a great book on the 1927 flood, flood control, and the politics behind it. It's a slog at first, but it's an absolutely wild story that will make you hate the state of Louisiana.
More Flood for Less Rain
I don’t know who said it first, but the Mississippi River is flooding more often, longer, and higher for the same or less rain. There are many reasons for this. But the main one is the US Army Corps of Engineers (Corps). It is in charge of flood control on the lower Mississippi River (below...
biggerpieforum.org
Also, if Rising Tide is a great book on the 1927 flood, flood control, and the politics behind it. It's a slog at first, but it's an absolutely wild story that will make you hate the state of Louisiana.