Oknoname 30158 Reservoir Report
Nearby: Solliday A.L. Solliday Al
Last Updated: December 5, 2025
Oknoname 30158, located in Okmulgee, Oklahoma, is a privately owned earth dam designed by USDA NRCS and completed in 2002.
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Summary
This dam, situated on the unnamed tributary of Rock Creek, has a height of 17.2 feet and a storage capacity of 96.35 acre-feet. With a surface area of 10.1 acres and a drainage area of 100 square miles, this dam serves multiple purposes and is regulated by the OWRB in Oklahoma.
Despite its low hazard potential, Oknoname 30158 is classified as having a very high risk level, indicating the importance of proper risk management measures. The dam features a controlled spillway and a single valve outlet gate for water release. While the dam's condition assessment is currently listed as not rated, it undergoes inspections every five years to ensure its structural integrity and safety. With its critical role in water resource management and flood control, Oknoname 30158 stands as a significant infrastructure project in the Tulsa District of Oklahoma.
Year Completed |
2002 |
Dam Length |
961 |
Dam Height |
17.2 |
River Or Stream |
UNNAMED TRIB ROCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
10.1 |
Hydraulic Height |
17.2 |
Drainage Area |
100 |
Nid Storage |
96.35 |
Structural Height |
17.2 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
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 30158