Nunley W.E. Reservoir Report
Nearby: Fredrick J.C. Jenkins E.H.
Last Updated: December 6, 2025
Nunley W.E.
°F
°F
mph
Wind
%
Humidity
Summary
is a privately owned dam located in Pumpkin Center, Stephens County, Oklahoma. Built in 1970, this Earth-type dam stands at a height of 30 feet and has a hydraulic height of 26 feet. The dam spans 445 feet in length and has a storage capacity of 59 acre-feet, with a maximum discharge rate of 1339 cubic feet per second. The dam is regulated by the Oklahoma Water Resources Board and has state jurisdiction for permitting, inspection, and enforcement.
Despite being classified as a low hazard potential dam, Nunley W.E. is considered to have very high risk due to its location and structural characteristics. The dam has a controlled spillway and a single valve outlet gate. The last inspection of the dam was conducted in August 2011, with an inspection frequency of 5 years. The condition assessment of the dam is currently listed as "Not Rated", and there is no Emergency Action Plan (EAP) prepared or updated for the site.
Overall, Nunley W.E. serves as an important water resource structure in the region, providing flood control and water storage for the TR Armstrong Creek. However, the high risk classification underscores the importance of continued monitoring and maintenance to ensure the safety and functionality of the dam for the surrounding community and ecosystem. Climate and water resource enthusiasts will find Nunley W.E. to be an intriguing case study in dam management and regulatory oversight.
Year Completed |
1970 |
Dam Length |
445 |
Dam Height |
30 |
River Or Stream |
TR ARMSTRONG CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
59 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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.
Nunley W.E.