Oknoname 30155 Reservoir Report
Nearby: Oknoname 30201 Oknoname 30171
Last Updated: December 16, 2025
Oknoname 30155 is a privately owned dam located in Craig, Oklahoma, along the Cow Creek.
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Summary
Built in 1995 by USDA NRCS, this earth dam stands at a height of 11.7 feet and has a storage capacity of 90.3 acre-feet. With a controlled spillway and a low hazard potential, this dam serves purposes beyond just water storage and flood control.
Despite its relatively low hazard potential, Oknoname 30155 poses a very high risk due to its structural condition not being rated. The dam has been inspected periodically, with the last inspection dating back to December 2010. Owned and regulated by the state of Oklahoma, this dam meets permitting, inspection, and enforcement requirements, ensuring the safety and compliance of its operations.
For water resource and climate enthusiasts, Oknoname 30155 presents an intriguing case of a privately owned dam with a unique purpose and design. As part of the larger water infrastructure in Craig County, Oklahoma, this dam plays a crucial role in managing water resources along Cow Creek while highlighting the importance of regular inspections and risk management measures to ensure public safety and environmental protection.
Year Completed |
1995 |
Dam Length |
400 |
Dam Height |
11.7 |
River Or Stream |
COW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
11.7 |
Drainage Area |
661 |
Nid Storage |
90.3 |
Structural Height |
11.7 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Neosho River Near Commerce
|
1220cfs |
Tar Creek At 22nd Street Bridge
|
2cfs |
Spring River Near Quapaw
|
316cfs |
Labette C Nr Oswego
|
3cfs |
Big Cabin Creek Near Big Cabin
|
35cfs |
Lightning C Nr Mccune
|
1cfs |
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 30155