Yea I love Lake as well. If you are ever this way hit me up as it would be fun to get a run up there with ya.
Short of is it front range water interests take between 20,000 to 90,000 acre ft of water from the Aspen side and send it through a tunnel that dumps into the "upper" section of Lake Creek this can be as much as 600+ cfs.. It then runs down into Twin Lakes and is pumped to the front range via the Otero Pump station.
Most of this water never hits the Ark but it does give us a long season up on Lake. Last year they only brought over 12,000 but this year it sounds like 30,000 so we should have a couple of weeks maybe a month of boatable flows on top of run off up on Lake.
It is also the reason the flows up there can jump 400 cfs in 15 min and change your run for sure. The link below is to the what they are putting through the tunnel...