[CedarDave]

It wants to go down the Achafalaya... It will happen. The river is eating away at the structure, and they keep fighting it. But one year, probably in a high water year with lots of flooding, they will lose the battle.

I've heard this mentioned on a couple of threads. Is it commonly accepted that it will occur?

[bwteim]

I don't know if it is commonly accepted, but if you Googled, you will find studies/scenarios if it were to happen.

[Knitting A Conundrum]

Here's a good site. You have to realize the two rivers are already connected. There is just a small neck of land separating them.

http://users.stlcc.edu/jangert/oldriver/oldriver.html