Scs-Chigley Sandy Creek Site-13 Reservoir Report
Last Updated: December 16, 2025
SCS-Chigley Sandy Creek Site-13, located in Murray County, Oklahoma, is a state-regulated earthen dam constructed in 1956 by the USDA NRCS.
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Summary
The dam stands at a height of 40 feet and serves primarily for flood risk reduction on TR-Chigley Sandy Creek. With a storage capacity of 144 acre-feet, the dam features a controlled spillway and a single valve outlet gate for water release.
Despite being categorized as having a low hazard potential, the dam is assigned a very high risk assessment score of 1, indicating potential vulnerabilities in its current condition. The last inspection was conducted in 1980, with an inspection frequency of every 5 years. The dam's emergency action plan status, condition assessment, and risk management measures are currently not rated or updated, raising concerns for its overall safety and resilience in the face of potential emergencies or extreme weather events.
Given its critical role in flood risk reduction and the high risk assessment, it is imperative for authorities to prioritize the inspection, maintenance, and updating of emergency protocols for SCS-Chigley Sandy Creek Site-13 to ensure the safety of downstream communities and infrastructure. Climate enthusiasts and water resource management professionals should monitor developments and advocate for proactive measures to address any identified risks and vulnerabilities associated with this essential infrastructure.
Year Completed |
1956 |
Dam Length |
800 |
Dam Height |
40 |
River Or Stream |
TR-CHIGLEY SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
34 |
Nid Storage |
144 |
Structural Height |
40 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rock Creek At Sulphur
|
8cfs |
Washita River Near Pauls Valley
|
324cfs |
Washita River Near Dickson
|
317cfs |
Pennington Creek Near Reagan
|
47cfs |
Blue River Near Connerville
|
47cfs |
Walnut Creek At Purcell
|
29cfs |
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.
Rock Creek - Chickasaw National Rec Area
Central - Chickasaw National Rec Area
Central Campground
The Point - Chickasaw National Rec Area
Guy Sandy Campground
Cold Springs - Chickasaw National Rec Area
Scs-Chigley Sandy Creek Site-13