Runoff news: Grand County streamflows may peak again this weekend but at a lower flow than the recent peak

A picture named coloradorivergranby.jpg

From the Sky-Hi Daily News (Tonya Bina):

Grand County Emergency Manager Trevor Denney is breathing a cautioned sigh of relief that flooding in Grand County so far this year hasn’t caused feared property damage or safety emergencies. Warmer temperatures into the weekend created a second peak in flows, but no more spikes are expected, Denney said, barring any unanticipated heavy rains.

The Fraser River is bank full, and in a few areas has jumped out of its banks, but damage has been limited to landscaping and grass…

High flows will continue in Grand County rivers with the Colorado River at Kremmling nearly reaching the 10,000 cfs mark from the weekend’s warmer temperatures, according to measurements collected by the U.S. Geological Survey. Increased flows out of the Granby and Williams Fork reservoirs have been adding to high Colorado River flows…

The Northern Colorado Water Conservancy District is releasing more water from the Granby Dam into the Colorado River. Combined releases from the dam reached around 2,200 cfs starting late last week, said Kara Lamb of the Bureau of Reclamation. System operators now plan to cut back releases out of Granby by 200 cfs per day until releases are at 1,000 cfs, she said. Granby reservoir is not yet full as water managers have been reserving storage for remaining high-elevation snowpack. But many say the upper Colorado drainage has reached its peak inflows. It’s expected the reservoir will fill by mid-July.

From The Grand Junction Daily Sentinel (Mike Wiggins):

The high and swift Colorado River washed away a portion of the Riverfront Trail in Grand Junction, the latest victim of a record runoff that has stuck landowners and communities across western Colorado with expensive cleanup work…

The heat will continue to melt what little snow remains at the highest elevations and push the river levels higher, although the Colorado hit its peak earlier this month, according to Chris Cuoco, senior forecaster with the Weather Service. The Colorado River at Cameo in De Beque Canyon was at 12.6 feet early Tuesday evening and is expected to rise to 12.8 feet by Thursday morning. Flood stage is 12.5 feet.

From the Glenwood Springs Post Independent (Scott Condon):

Recent warm weather increased the flow of water from the upper Fryingpan River into the reservoir to about 1,300 cubic feet per second (cfs). The reclamation bureau reacted by increasing releases from the dam by 100 cfs on Monday. That bumped up the total release below the dam to 838 cfs, including Rocky Fork Creek. As of Monday evening, Ruedi was within 5,000 acre feet of filling, Lamb said. That is about 4 vertical feet from being full. Ruedi’s capacity is 102,000 acre feet.

Leave a Reply