Wildcat No. 2 Reservoir Report
Nearby: Wildcat No. 3 Wildcat No. 1
Last Updated: December 7, 2025
Wildcat No.
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Summary
2 is a privately owned irrigation dam located in Niobrara, Wyoming, along the South Fork Wildcat river. Built in 1955, this Earth-type dam stands at 35 feet high and spans 454 feet in length, with a storage capacity of 317 acre-feet. Despite its low hazard potential, the dam is in poor condition and was last inspected in June 2019, with a scheduled inspection frequency of every 5 years.
The dam features an uncontrolled spillway with a width of 100 feet and is equipped with a slide (sluice gate) outlet. Although the risk assessment for Wildcat No. 2 indicates a moderate level of risk, there are no specific risk management measures or emergency action plans in place as of the latest data update in March 2022. The dam is under the jurisdiction of the Wyoming State Engineer's Office and is subject to state regulation, permitting, inspection, and enforcement.
For water resource and climate enthusiasts, Wildcat No. 2 offers a fascinating case study of a historic irrigation structure in need of maintenance and potential risk mitigation. As efforts to address aging infrastructure and adapt to changing environmental conditions continue, monitoring the condition and management of dams like Wildcat No. 2 will be crucial for ensuring the safety and sustainability of water resources in Wyoming and beyond.
Year Completed |
1955 |
Dam Length |
454 |
Dam Height |
35 |
River Or Stream |
SOUTH FORK WILDCAT |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
30 |
Nid Storage |
317 |
Structural Height |
35 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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.
Wildcat No. 2