Scs-Upper Elk Creek Site-32 Reservoir Report
Last Updated: January 9, 2026
SCS-Upper Elk Creek Site-32, also known as Noble Coy Lake, is a state-owned dam in Sentinel, Oklahoma, managed by the USDA NRCS.
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Summary
This earth dam, completed in 1968, serves the primary purpose of flood risk reduction along the TR-Elk Creek. It stands at a height of 28 feet with a hydraulic height of 24 feet, providing a storage capacity of 444 acre-feet and a normal storage of 127 acre-feet.
Located in Beckham County, Oklahoma, this dam has a controlled spillway and is equipped with one valve for outlet gates. Despite being categorized as having a low hazard potential, it has a very high risk assessment rating of 1. The dam has not been rated for its condition as of the last inspection in 1980, with a scheduled inspection frequency of every 5 years. While no emergency action plan or inundation maps have been prepared, the dam remains under the jurisdiction of the Oklahoma Water Resources Board for regulation and enforcement.
Water resource and climate enthusiasts interested in the management and maintenance of dams for flood risk reduction will find the data on SCS-Upper Elk Creek Site-32 to be both intriguing and informative. This state-owned dam in Oklahoma serves a crucial role in protecting the surrounding area from potential flooding, with specific details on its design, height, storage capacity, and structural features provided. The dam's risk assessment and hazard potential add another layer of complexity to its management, highlighting the importance of regular inspections and potential risk management measures in place.
Year Completed |
1968 |
Dam Length |
970 |
Dam Height |
28 |
River Or Stream |
TR-ELK CREEK |
Primary Dam Type |
Earth |
Surface Area |
25 |
Hydraulic Height |
24 |
Nid Storage |
444 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
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.
Scs-Upper Elk Creek Site-32