The USGS-Missouri Water Science Center compared the River’s average flowrate upstream and downstream of the New Madrid fault and found no evidence of “missing” flow volume. During the 9/10 to 10/9/17 period, Mississippi River + Ohio River flow ≈ 217,000 cubic feet per second. At Memphis, downstream of the New Madrid fault, flow was ≈ 249,000.
There was still plenty of water in it when I crossed this morning at New Orleans. The Carrolton gage was at about 3’. The low water reference is 0.6’, with the record low at -1.6’.
Think we’re OK.