FrankC, you might have the wrong section in mind. The Pine Creek section of the Arkansas is "only" a V- around 2000 cfs. A swim in there is guaranteed to be fast-paced and frightening, but only rarely fatal. I would've worn a helmet though...
-Τὸ χόβερκράφτ μου εἶναι γεμᾶτο χέλια!