Rittenhouse Gp No.7 Reservoir Report
Nearby: Rittenhouse Gp-12 Oknoname 059022
Last Updated: December 16, 2025
Rittenhouse Gp No.7, located in Fort Supply, Oklahoma, is a privately owned earth dam designed by the USDA NRCS and completed in 1958.
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Summary
The dam stands at 28 feet tall with a maximum storage capacity of 52 acre-feet on Sleeping Bear Creek. With a controlled spillway and a low hazard potential, this dam serves multiple purposes beyond flood control and water storage, making it a vital resource in the region.
Managed by the OWRB and subject to state regulations, Rittenhouse Gp No.7 has not been rated for its condition assessment but undergoes inspections every five years. Despite its very high risk assessment rating, the dam's emergency action plan status and inundation maps remain unclear. With only one outlet valve and no locks, this structure poses a significant risk in the event of a breach. As water resource and climate enthusiasts, it is crucial to monitor and ensure the safety and integrity of dams like Rittenhouse Gp No.7 to protect both the environment and surrounding communities.
Year Completed |
1958 |
Dam Length |
395 |
Dam Height |
28 |
River Or Stream |
SLEEPING BEAR CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
24 |
Nid Storage |
52 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River At Woodward
|
68cfs |
Cimarron River Near Buffalo
|
75cfs |
Cimarron River Near Waynoka
|
107cfs |
Cimarron R Near Buttermilk
|
47cfs |
Bluff Creek Nr Buttermilk
|
42cfs |
North Canadian River Near Seiling
|
103cfs |
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.
Rittenhouse Gp No.7