I was able to get on the Dirty Devil this weekend for a sweet solo run. On Saturday I completed a 1 day decent of the dirty which is 80+ miles from the bride at Hanksville to the bridge near the take out at Cataract canyon. I estimate the flow was between 15,000-20,000. The scenery is epic rivaling and other desert run I've done. The last 20 miles is a box canyon that typically contains a little stream bed gouged out of tamarisks and sediment. When I went on Sat it was wall to wall water to whole way. It was amazing to see a desert canyon alive with so much water. Rare moment in time in a cool place. I would highly, highly recommend it even at low flows. I wanted to stop in places and check out some of the side canyons (looks like sweet hiking) but was to busy paddling my ass off so that I didn't run out of water and get stuck in the canyon. I camped Sat night near the bridge close to Cat. The next day the river had dropped 10 ft, down to about 2000 cfs.
People at the hole-in-the wall gas station said Lake Powell climbed 3.5 feet in 20 hours. They also said it was the highest the dirty devil had run since 1957. I got a ride from a group who did Cat and they said it went from 6500 to 35,000 while they were on the river.
At this flow it was class 3, mainly 6-8 foot sand waves and two class 4s. Not exactly the gnar but still a once in a life time flow.