East Verde River Diversion from East Clear Creek

 


Site information
Gage NameEast Verde River Diversion from East Clear Creek
WatershedVerde
CountyGila
ParticipantsUSGS

C.C. Cragin Operation & Maintenance Update:
SRP discontinued pumping from C.C. Cragin Reservoir on July 27 and opened the 24” gate valve at the bottom of the dam on August 4. The priming tank will remain full for dipping access should the Forest Service have a need for fire-fighting. The total discharge to the East Verde River for the season was approximately 3,200 acre feet.
The release from the gate valve was necessary to lower the lake elevation an additional 26’ to perform an inspection of the tunnel inlet structure that transfers water to the pumps. The target lake elevation was reached on August 12 and the valve was closed. SRP’s Hydro-Engineering is proceeding with inspecting the tunnel inlet structure and will be making recommendations for necessary repairs before the lake refills. Additional work originally scheduled adjacent to the spillway has been postponed to a future date.

SRP acquired C.C. Cragin (formerly Blue Ridge) reservoir on East Clear Creek from Phelps Dodge Corporation in February 2005 as part of the 2004 Arizona Water Settlement Act. For more history and information on C. C. Cragin, visit our site.

C. C. Cragin Dam is a thin-arch concrete structure with a height of 170 feet and crest length of 492 feet. The watershed above the reservoir is 71.1 square miles. When full, C. C. Cragin Reservoir impounds 15,000 acre feet with a water depth of 100 feet. Water is pumped to the East Verde River via a tunnel, pumping plant, pipeline and related facilities. SRP pumps water at a maximum rate of 35 cubic feet per second from the reservoir during the summer for deliveries to SRP shareholders and, in the future, to Payson and other Northern Gila County communities. The spillway has a maximum capacity of 22,500 cubic feet per second. At minimum pool (elevation 6640 ft) the lake contains 2,165 af of water and is approximately 77 surface acres in size.


Data TypeValueLatest Reading
USGS Flow (cfs)0.00 cfs8/28/2014 11:30:00 PM
Recent Precipitation0.00 in8/28/2014 11:30:00 PM
Cumulative Precip Since Jan. 113.53 in8/28/2014 11:30:00 PM
Click on graph for more options


These pages are best viewed with the most recent version of Microsoft Internet Explorer at a screen size of 1024x768 or higher.
Site Disclaimer   Version 4.0