Oknoname 30245 Reservoir Report
Nearby: Oknoname 111027 Dillingham Land Co
Last Updated: December 5, 2025
Oknoname 30245, also known as Dillingham Ranch, is a privately owned structure located in Okmulgee, Oklahoma.
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Summary
This fish and wildlife pond serves as a critical resource for the local ecosystem, with a storage capacity of 81.3 acre-feet and a surface area of 11.1 acres. The dam, primarily made of earth with buttress and stone cores, stands at a height of 18 feet and has a controlled spillway with a width of 1 foot.
Managed by the USDA NRCS and regulated by the Oklahoma Water Resources Board, Oknoname 30245 is designed to withstand low hazard potential. Despite not being rated for condition assessment, the structure has undergone periodic inspections, with the last one conducted in August 2011. With a very high risk assessment rating, the dam is considered a valuable asset in the region's water resource management efforts, providing essential support for the local wildlife and environment.
Dam Length |
1300 |
Dam Height |
18 |
River Or Stream |
TRIB. TO SNAKE CREEK- ARK RIVER |
Primary Dam Type |
Earth |
Surface Area |
11.1 |
Hydraulic Height |
8 |
Drainage Area |
0.15 |
Nid Storage |
81.3 |
Structural Height |
10 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Oknoname 30245