Calpet Cell #7 Reservoir Report
Nearby: Calpet Cell #8 Calpet Cell #9
Last Updated: December 13, 2025
Calpet Cell #7, located in Sublette, Wyoming, is a privately owned earth dam constructed in 2006 with a height of 27 feet and a storage capacity of 164 acre-feet.
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Summary
The dam stands on Dry Pine Creek and serves a primary purpose classified as "Other." Designed by GARTH POWELL, the dam's structure includes stone core types and rests on rock and soil foundations.
With a low hazard potential and fair condition assessment, Calpet Cell #7 undergoes inspections every five years, with the most recent inspection taking place in May 2021. The dam has state jurisdiction and regulation, with permitting, inspection, and enforcement carried out by the Wyoming State Engineer's Office.
Situated in a picturesque location near HWY 189, this dam plays a crucial role in managing water resources in the area, showcasing the importance of proper infrastructure for climate resilience and water conservation efforts.
Year Completed |
2006 |
Dam Length |
3300 |
Dam Height |
27 |
River Or Stream |
DRY PINE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
164 |
Structural Height |
27 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Green River Near La Barge
|
681cfs |
New Fork River Near Big Piney
|
295cfs |
Fontenelle C Nr Herschler Ranch
|
33cfs |
Green River Below Fontenelle Reservoir
|
882cfs |
Hams Fork Below Pole Creek
|
6cfs |
Smiths Fork Near Border
|
68cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Calpet Cell #7