Oknoname 087027 Reservoir Report
Nearby: Anderson Oknoname 087028
Last Updated: December 16, 2025
Oknoname 087027, located in PURCELL, Oklahoma, is a privately owned dam on TR-WALNUT CREEK with a low hazard potential and a very high risk assessment score of 1.
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Summary
Built in 1950, this earth dam stands at 27 feet tall and spans 400 feet in length, providing a maximum storage capacity of 83 acre-feet of water. Despite its age, the dam is regularly inspected, with the last assessment conducted in July 2005, and is regulated by the Oklahoma Water Resources Board (OWRB).
With a controlled spillway and a single valve outlet gate, Oknoname 087027 serves a primarily unknown purpose and is not rated in terms of condition assessment. While it has not been modified in recent years, the dam is under state jurisdiction and subject to inspection, enforcement, and permitting by the OWRB. Its remote location in McClain County, Oklahoma, and its close proximity to the city of PURCELL highlight the importance of monitoring and managing this critical water resource to ensure the safety and security of the surrounding area, particularly in the face of climate change and increasing water demands.
Year Completed |
1950 |
Dam Length |
400 |
Dam Height |
27 |
River Or Stream |
TR-WALNUT CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
27 |
Nid Storage |
83 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Canadian River At Purcell
|
212cfs |
Walnut Creek At Purcell
|
29cfs |
Canadian River At Norman
|
215cfs |
North Criner Creek Near Criner
|
1cfs |
Little River Blw Lk Thunderbird Nr Norman
|
2cfs |
Washita River At Alex
|
236cfs |
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 087027