Delling Grady Reservoir Report
Nearby: Cope Et Crown Audrey
Last Updated: December 16, 2025
Delling Grady is a privately owned dam located in Pottawatomie, Oklahoma, along the Sand Creek river.
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Summary
Built in 1986, this Earth dam stands at a height of 26 feet with a hydraulic height of 23 feet, serving as a crucial water resource for the surrounding area. With a storage capacity of 99 acre-feet and a drainage area of 0.57 square miles, Delling Grady plays a vital role in flood control and water management in the region.
Managed by the Oklahoma Water Resources Board (OWRB), Delling Grady has been deemed to have a low hazard potential with a very high risk assessment rating. Although the dam's condition is currently not rated, it undergoes inspections every five years to ensure its safety and integrity. With a controlled spillway and a single valve outlet gate, this dam exemplifies the importance of proper regulation and maintenance to mitigate any potential risks and ensure the sustainable management of water resources in the area.
For enthusiasts of water resources and climate, Delling Grady serves as a fascinating example of how infrastructure like dams can play a crucial role in water management and flood control. With its location on the Sand Creek river and its low hazard potential, this privately owned dam highlights the importance of proper regulation and maintenance to ensure the safety and efficiency of water resource infrastructure. As climate change continues to impact water availability and distribution, understanding and managing structures like Delling Grady will be essential in adapting to the evolving challenges of a changing climate.
Year Completed |
1986 |
Dam Height |
26 |
River Or Stream |
SAND CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
23 |
Drainage Area |
0.57 |
Nid Storage |
99 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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.
Delling Grady