Dunning Sese S 32 #2 Reservoir Report
Nearby: Enl. Eddie Dunning Senw S 32
Last Updated: December 5, 2025
Dunning Sese S 32 #2 is a private irrigation dam located in Sheridan, Wyoming, along the Frisbie Draw river.
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Summary
Designed by John Buyok and completed in 2013, this earth dam stands at 27 feet high with a storage capacity of 20 acre-feet. With a primary purpose of irrigation, it also serves for fire protection, stock, and small fish pond purposes. The dam has a fair condition assessment and a low hazard potential, making it a relatively stable structure.
Despite being a privately owned dam, Dunning Sese S 32 #2 falls under state jurisdiction and regulation, with permits, inspections, and enforcement in place by the Wyoming State Engineer's Office. The dam's spillway type is uncontrolled, with a width of 6 feet, and it has one outlet valve for water release. It has a moderate risk assessment rating of 3, indicating a potential for risks that need to be managed effectively. The dam is in Congressional District 00, Wyoming, represented by Liz Cheney (R), and is located within the Omaha District of the US Army Corps of Engineers.
Overall, Dunning Sese S 32 #2 is a significant water resource structure that plays a crucial role in irrigation and water management in the area. With its strategic location and design features, this dam contributes to the agricultural and environmental sustainability of the region. As climate and water resource enthusiasts, monitoring and maintaining the integrity of dams like Dunning Sese S 32 #2 is essential for ensuring water security and resilience in the face of changing climate conditions.
Year Completed |
2013 |
Dam Length |
3400 |
Dam Height |
27 |
River Or Stream |
FRISBIE DRAW |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
25 |
Nid Storage |
20 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Prairie Dog Creek Near Acme
|
19cfs |
Tongue River At State Line Nr Decker Mt
|
195cfs |
Goose Creek Near Acme
|
123cfs |
Tongue River At Monarch
|
383cfs |
Tongue River At Tongue R Dam Nr Decker Mt
|
118cfs |
Tongue River Near Dayton
|
48cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Sheridan KOA
|
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Tongue River Reservoir State Park
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Washington Park - Sheridan
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Dunning Sese S 32 #2