Scs-Cobb Creek Site-002 Reservoir Report
Last Updated: December 6, 2025
SCS-Cobb Creek Site-002, located in Colony, Oklahoma, is a state-regulated dam designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1957, this earth dam stands at a height of 44 feet and spans a length of 1300 feet, holding a maximum storage capacity of 3205.3 acre-feet. The dam, situated on Bull Creek in Washita County, serves to protect the surrounding area from potential flooding events with a controlled spillway and a maximum discharge rate of 19114 cubic feet per second.
Despite being marked with a high hazard potential, the dam's condition assessment is rated as fair, with the last inspection conducted in September 2012. With a drainage area of 5.63 square miles and a normal storage capacity of 166 acre-feet, this structure plays a crucial role in managing water resources in the region. The dam's risk assessment is classified as very high, emphasizing the importance of continued maintenance and monitoring to ensure the safety and effectiveness of the flood risk reduction measures in place at SCS-Cobb Creek Site-002.
Year Completed |
1957 |
Dam Length |
1300 |
Dam Height |
44 |
River Or Stream |
BULL CREEK |
Primary Dam Type |
Earth |
Surface Area |
36.2 |
Hydraulic Height |
33 |
Drainage Area |
5.63 |
Nid Storage |
3205.3 |
Structural Height |
39 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
44 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cobb Creek Near Eakly
|
16cfs |
Lake Creek Near Eakly
|
4cfs |
Willow Creek Near Albert
|
2cfs |
Washita River Near Clinton
|
32cfs |
Cobb Creek Near Fort Cobb
|
4cfs |
Canadian River At Bridgeport
|
126cfs |
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-Cobb Creek Site-002