Oknoname 30142 Reservoir Report
Nearby: Oknoname 30174 Spur Ranch
Last Updated: December 16, 2025
Oknoname 30142, located in Nowata, Oklahoma, is a private earth dam on Big Creek with a primary purpose of recreation.
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Summary
Built in 2001 by USDA NRCS, this dam stands at 7 feet high and spans 2600 feet in length, providing storage for 106 acre-feet of water. Despite its low hazard potential, the dam is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, with the last one conducted in December 2010.
With a surface area of 16 acres and a drainage area of 49 square miles, Oknoname 30142 is equipped with a controlled spillway and a single valve outlet gate. The dam's condition is currently not rated, but its risk assessment is categorized as very high. Although it has not been modified since its completion, the dam is monitored for any potential risks and has emergency action plans in place. Overall, this dam serves as a crucial recreational resource in the area while being mindful of its environmental impact and safety measures.
Year Completed |
2001 |
Dam Length |
2600 |
Dam Height |
7 |
River Or Stream |
BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
4 |
Drainage Area |
49 |
Nid Storage |
106 |
Structural Height |
7 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
7 |
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 30142