Howell Rc Reservoir Report
Nearby: Oknoname 037046 Heyburn Dam
Last Updated: December 6, 2025
Howell Rc, located in Kellyville, Oklahoma, is a privately owned earth dam on TR-Polecat Creek that serves multiple purposes.
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Summary
Completed in 1960, the dam stands at a height of 25 feet and spans a length of 400 feet, with a storage capacity of 50 acre-feet. Despite being categorized as having low hazard potential, the dam is considered to have a very high risk assessment, indicating the need for careful monitoring and maintenance.
The dam is regulated by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections, with the last one conducted in August 2011. While the condition assessment is listed as "Not Rated," the dam is equipped with a controlled spillway and one valve outlet gate. The risk management measures for Howell Rc remain unspecified, and it is not under the jurisdiction of any federal agency.
Given its critical location in Creek County, Oklahoma, and the potential implications for water resources and climate in the region, ongoing monitoring and assessment of Howell Rc are essential. The dam's risk assessment highlights the importance of proactive maintenance and mitigation strategies to ensure the safety and integrity of the structure for both the local community and the surrounding environment.
Year Completed |
1960 |
Dam Length |
400 |
Dam Height |
25 |
River Or Stream |
TR-POLECAT CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
25 |
Nid Storage |
50 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Howell Rc