We are seeing runoff really start to come on.
Releases from Shadow Mountain Dam have been running around 2500 cfs for the past several days. The reservoir has maintained its average water level elevation, although it is seeing a healthy runoff inflow from the North Fork of the Colorado River.
Willow Creek Reservoir has been hovering around full for several days. Inflows are about 900 cfs.
Inflows are also up at Granby Reservoir, which is nearing 75% full. Granby is rising at an elevation of roughly a foot a day, or more.
At this rate, it is anticipated that we will fill Granby on its native runoff alone and do not need to pump from Willow Creek.
As a result, Willow Creek inflows will start passing on through the dam and downstream. Currently, flows below the dam are about 430 cfs. Tomorrow morning, they will start to rise in 100 cfs increments until they reach about 900 cfs around 11:00 a.m.
Residents below Willow Creek Dam should expect to see the 900 cfs at least through Wednesday, possibly longer. However, according to the forecast, flows in Willow Creek are expected to start dropping back down the middle of this week.
Meanwhile, releases from Granby Dam to the Colorado River will likely stay around 55 cfs this week.
Please let me know if you have any related questions.
Public Information Officer
Bureau of Reclamation
Eastern Colorado Area Office