Oknoname 30178 Reservoir Report
Nearby: Stroud Steve Miller Dam
Last Updated: December 6, 2025
Oknoname 30178, located in Blaine, Oklahoma, is a privately owned earth dam designed by the USDA NRCS with a primary purpose of water supply.
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Summary
Completed in 2005, this dam stands at a height of 31.2 feet with a hydraulic height of 27 feet and a structural height of 34 feet. It has a storage capacity of 31.28 acre-feet and covers a surface area of 2.3 acres in the drainage area of the South Canadian River.
Managed by the Oklahoma state regulatory agency OWRB, Oknoname 30178 has a controlled spillway and is classified as having a low hazard potential. Despite being in good condition and not rated for assessment, it faces a very high risk due to its location and purpose. With one valve outlet gate, this dam has not been modified since its completion and is subject to regular inspections every 5 years to ensure its safety and functionality for water supply purposes.
In the event of an emergency, the dam does not have an Emergency Action Plan (EAP) in place, raising concerns about its preparedness for unforeseen events. With a risk assessment indicating a very high risk level, stakeholders and regulators may need to consider implementing risk management measures to mitigate potential hazards and ensure the continued safety and reliability of Oknoname 30178 for water resource and climate enthusiasts.
Year Completed |
2005 |
Dam Length |
185 |
Dam Height |
31.2 |
River Or Stream |
SOUTH CANADIAN RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.3 |
Hydraulic Height |
27 |
Drainage Area |
176 |
Nid Storage |
31.28 |
Structural Height |
34 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
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 30178