Summary
2, located in Reclusa Ranch, Wyoming, is a privately owned earth dam completed in 1953 for irrigation purposes on Little Willow Creek. With a height of 19 feet and a storage capacity of 252 acre-feet, this dam serves multiple purposes including fire protection, stock watering, and small fish pond maintenance. The dam has a fair condition assessment and a low hazard potential, with a moderate risk assessment rating.
Managed by the Wyoming State Engineer's Office and Department of Environmental Quality, Jepson No. 2 undergoes regular inspections and is regulated, permitted, and enforced by state agencies. The dam features an uncontrolled spillway with a width of 200 feet and a maximum discharge capacity of 8823 cubic feet per second. Despite its age, Jepson No. 2 remains a crucial water resource infrastructure in Johnson County, Wyoming, ensuring water supply for agricultural and livestock activities in the region.
Overall, Jepson No. 2 stands as a testament to efficient water management in Wyoming, providing essential irrigation services while maintaining a low-risk profile. With its strategic location on Little Willow Creek and its contribution to the local ecosystem, this dam plays a pivotal role in sustaining water resources and supporting the agricultural community in the area. As climate change continues to impact water availability, structures like Jepson No. 2 will be vital in ensuring water security for future generations.
Year Completed |
1953 |
Dam Length |
1208 |
Dam Height |
19 |
River Or Stream |
LITTLE WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
18.23 |
Hydraulic Height |
11 |
Drainage Area |
18.3 |
Nid Storage |
252 |
Structural Height |
22 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Jepson No. 2
Powder River (Cantonment Reno)