From email from Reclamation (Kara Lamb, February 1, 2010):
It’s that time of year when we begin moving water east to start filling both Horsetooth and Carter reservoirs. For the past several weeks, we’ve been pumping water up to Carter while Larimer County has worked on some recreational improvements at Horsetooth. Currently, Carter is sitting at a water level elevation of 5746 feet—about 13 vertical feet down from full. It should remain at the elevation for a while.
Horsetooth has been rising very slowly over the last several weeks while the recreation work has been going on. We are currently at an elevation of 5384–about 30 feet down from our average fill elevation of 5414.
Today, we turned the pump to Carter off in order to begin sending more water to Horsetooth. Approximately 460 cfs is now going to Horsetooth. Those watching the reservoir water level should notice a sharper rate of increase by the end of the day, tomorrow.