All of Little Dolores creek has been run, most of it multiple times, and very little of it was worth it.
The only easily accessible section with routinely enough water is the Glade Park Potholes, about 25 miles south of Junction. Its a fun entrance to 8 footer, then a tricky lead in to an 18 footer. The more water the better. But its solely park and huck. First descented by Chamberlain bro's and company in 95 or 96, and I ran it in high school probably 10 different trips (only one of which was the flow really good).
Below that is another section with a couple of small gorges. Again, it never really has enough water. I've run it, and the drops are crunchy 5-footers that land on rock. We portaged a 30 foot slide/cascade thing that just didn't have enough flow. Not worth it because it never runs enough to clean out the brush, and the creek bed is only about 5 feet wide (literally, you can't turn sideways) most of the time. Add that to the fact that it's all on private land and we were confronted by a not very happy 6'3 220+ rancher at the takeout it is safe to conclude that I will never go back to that place.
Below that was first descented by Tom Chamberlain and another (I don't remember who) back in 96 or 97. They made it through the stuff that I just mentioned, and then through miles and miles of windy cow patty land. Then, the action picked up, and Tom dropped over a 20' lip into a beautiful deep and smooth walled pool, with water pouring over another horizon line immediately below him. His partner fortunatly stayed above the first horizon, and was able to rope Tom out above the next drop, a 60-80 footer thing on to rock. I don't know if they ran the last set of falls that everyone hikes too, but they eventually made it to Westwater and to the takeout. I think they did the run in two or three days.
Some runs just aren't worth it. Glade Park potholes are fun, and I'm guessing hiking up to the hiker's falls could be worthy, but nothing else on that creek is worthwhile. If you could access it from the top better, it might be worth checking out again, but you want to start at the ridges above Westwater. Idaho shuttle style would be an under statement.