Scs-Bitter Creek Site-20 Reservoir Report
Nearby: South Storage Pit North Storage Pit
Last Updated: December 7, 2025
SCS-Bitter Creek Site-20, located in Grady, Oklahoma, is a state-regulated dam designed by the USDA NRCS in 1974 for flood risk reduction along the TR-East Bitter Creek.
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Summary
This Earth-type dam stands at a height of 29 feet and has a maximum storage capacity of 274 acre-feet. Despite its low hazard potential, the dam has a very high risk assessment rating of 1, indicating a need for careful monitoring and maintenance.
Owned and regulated by the state of Oklahoma, this dam is inspected every 5 years and has a controlled spillway with a width of 1 foot. The dam's primary purpose is flood risk reduction, and it has not been modified since its completion. The structure is in fair condition and has not been rated for potential emergency scenarios. With a maximum discharge capacity of 530 cubic feet per second, SCS-Bitter Creek Site-20 plays a crucial role in managing water resources in the region and protecting downstream communities from the impacts of flooding.
Year Completed |
1974 |
Dam Length |
840 |
Dam Height |
29 |
River Or Stream |
TR-EAST BITTER CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
27 |
Nid Storage |
274 |
Structural Height |
29 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
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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-Bitter Creek Site-20