Bureau of Reclamation Banner, Upper Colorado Region
Fontenelle Dam

 

 

 

 

 

FONTENELLE

Inflows to Fontenelle Reservoir for the month of June were 332,000 acre-feet (AF), or 111 percent of average. The current reservoir elevation is 6499.8 feet, which amounts to 86 percent of live storage capacity. Releases will be reduced to 2,900 cfs by the end of the day today (07/01/15), where they will remain through the holiday weekend.The current inflow rate is 2,000 cubic feet per second (cfs), with recent daily averages ranging from 2,240 cfs to 3,680 cfs.

Fontenelle releases were held steady between 1,750 cfs and 1,850 cfs in April and May. Releases were increased at the beginning of June and reached 7,000 cfs on Tuesday, June 9th. Due to warm temperatures and persistent storm activity, runoff inflows peaked during the second week of June near a daily average of 7,500 cfs.

Spring runoff has peaked and reservoir inflows continue to decline. Weather conditions are expected to be warm and relatively dry for the next two weeks. Beginning Monday, July 6th, 2015, at 8:00 a.m., releases from Fontenelle will be decreased to power plant capacity (approximately 1,700 cfs) according to the following schedule:

Date

Time
MST

Initial Release
(cfs)

 

 

Change
(cfs)

 

Final Release
(cfs)

7/6/2015

0800

2900

 

 

-200

 

2700

7/6/2015

1600

2700

 

 

-200

 

2500

7/7/2015

0800

2500

 

 

-200

 

2300

7/7/2015

1600

2300

 

 

-200

 

2100

7/8/2015

0800

2100

 

 

-200

 

1900

7/8/2015

1600

1900

 

 

-200

 

PP (~1,700 cfs)

After the final change at 4:00 p.m. on Wednesday, July 8th, 2015, releases will remain at power plant capacity (~1,700 cfs) until further notice. 

While seasonal reservoir inflows from April through July are projected to be near average, forecasted inflow volume for July is expected to be well below average at 88,000 AF (49% of average). The official July forecast of April-July inflow is for 730,000 AF (101% of average).

To view the most current reservoir elevation, content, inflow and release, click on: Fontenelle Reservoir Data.

WORKING GROUP

The next Fontenelle Working Group meeting is scheduled for August 26, 2015, at 10:00 am at the Joint Powers Water Board in Green River, Wyoming. The Fontenelle Working Group is an open public forum for information exchange between Reclamation and other parties associated with the operation of Fontenelle Reservoir.

The spring Fontenelle Working Group meeting was held on April 15, 2015 at Seedskadee Wildlife Refuge in Green River, Wyoming. Minutes from the meeting are currently being drafted and will be posted on the Working Group webpages

Updated July 1, 2015
Lee Traynham

Email comments/inquires to: ResourceMgr@usbr.gov