Duffle David P Reservoir Report
Last Updated: December 12, 2025
Duffle David P is a privately owned earth dam located in Wellston, Oklahoma, along Bear Creek.
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Summary
Built in 1910 for the primary purpose of flood risk reduction, this dam stands at a height of 50 feet with a hydraulic height of 30 feet. With a normal storage capacity of 50 acre-feet and a maximum storage of 120 acre-feet, Duffle David P covers a surface area of 5 acres and spans a length of 1275 feet.
Despite its age, Duffle David P has a low hazard potential and has not been rated for its condition assessment. The dam features a controlled spillway with a width of 1 foot and an outlet gate system consisting of one valve. The last inspection of the dam was conducted in May 2011, with an inspection frequency of 5 years. While the risk assessment for the dam indicates a very high risk level, steps for risk management and emergency preparedness are not clearly outlined in the data.
Located in Lincoln County, Oklahoma, Duffle David P is regulated by the Oklahoma Water Resources Board (OWRB) and falls under state jurisdiction for permitting, inspection, and enforcement. The dam is situated within the Tulsa District of the US Army Corps of Engineers and is overseen by Representative Frank D. Lucas (R). With its historical significance and critical role in flood risk reduction, Duffle David P serves as a key structure in water resource management in the region.
Year Completed |
1910 |
Dam Length |
1275 |
Dam Height |
50 |
River Or Stream |
BEAR CR |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
30 |
Nid Storage |
120 |
Structural Height |
50 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
50 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Deep Fork At Warwick
|
24cfs |
Cimarron River Near Ripley
|
498cfs |
Cimarron River Near Guthrie
|
465cfs |
Cottonwood Creek Near Seward
|
66cfs |
North Canadian River Near Harrah
|
664cfs |
North Canadian River At Britton Rd At Okc
|
366cfs |
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.
Duffle David P