Scs-Deep Red Run-Coffin Cr Site-02 Reservoir Report
Last Updated: December 5, 2025
SCS-Deep Red Run-Coffin Cr Site-02 is a state-regulated dam located in Hollister, Oklahoma, along Coffin Creek.
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Summary
Completed in 1975 by the USDA NRCS, this earth dam stands at a height of 44 feet and serves the primary purpose of flood risk reduction. With a normal storage capacity of 730 acre-feet and a maximum storage of 2790 acre-feet, this dam plays a crucial role in managing the flow of water in the area.
The dam, with a length of 2260 feet and a spillway width of 2 feet, has a significant hazard potential and has been assessed to be in fair condition. The last inspection was conducted in August 2011, with an inspection frequency of 3 years. In case of emergencies, the dam is equipped with a valve outlet gate. The risk assessment for this dam is very high, with a DSAC assigned date and a risk management plan in place to mitigate any potential risks associated with its operations.
As an essential infrastructure for flood risk reduction in Tillman County, Oklahoma, SCS-Deep Red Run-Coffin Cr Site-02 plays a critical role in safeguarding the surrounding communities from the impacts of extreme weather events. With its controlled spillway and valve outlet gate, this dam is equipped to handle high discharges and ensure the safety of residents downstream. With proper maintenance and regular inspections, this dam continues to serve its purpose effectively while addressing the challenges posed by climate change and water resource management in the region.
Year Completed |
1975 |
Dam Length |
2260 |
Dam Height |
44 |
River Or Stream |
COFFIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
112 |
Hydraulic Height |
38 |
Nid Storage |
2790 |
Structural Height |
44 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
44 |
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-Deep Red Run-Coffin Cr Site-02