I spoke with the water commissioner today. She said there is about 70 cfs, +/- 10 to 15CFS in NSV, below buttonrock. NSV below buttonrock no longer has a working gauge.
There is a combined gauge below the confluence for SSV and NSV, but the simple math does not work, due to diversions.
She said Buttonrock is 75% full and they are sitting on a 213% snow pack at the moment for the Saint Vrain rivers! And it has not started to melt! She also said there hasn't been a lot of water calls yet, as it has been cool and wet, so not much is being released.
I think 250cfs is the low end for the shelly's section. The NSV playpark starrts to work at 80cfs or so. The black bear hole is further down and might be good now with the additional water from SSV?