from denver water:
"Its been a great summer; hard to believe its almost over. Seems like it was a good kayaking year. The North Fork really held up well. The tunnel was off today for inspection, but will be turned back on tomorrow or Friday. I expect flows to be in the 100 200 cfs range over the weekend.
Also, we plan to shut the tunnel off the first week of September for repairs. The tunnel will be off for September and most of October."