[notabotiswear]

I believe you are [trying to?] dedcribe typical river morphodynamics; meandering and oxbow lake formation. While yes, they do happen, rivers like the Nile, especially in its milder sloped ends in Egypt, don't see the dramatical versions of these phenomena. And even rivers/reaches that do braid/meander a lot tend to do that within a limited corridor. The topic at hand speaks more of inter-basin conveyance.