Oknoname 051027 Reservoir Report
Last Updated: December 6, 2025
Oknoname 051027 is a privately owned earth dam located in Grady, Oklahoma, near the city of ALEX.
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Summary
Built in 1960 by the USDA NRCS, this dam on the TR-WASHITA RIVER stands at 25 feet high and spans 840 feet in length, with a storage capacity of 120 acre-feet. It serves a primary purpose of "Other" and is regulated by the Oklahoma Water Resources Board, with state permitting, inspection, and enforcement in place.
Despite its low hazard potential, Oknoname 051027 is classified as having a very high risk assessment rating of 1 due to its critical importance in managing water resources in the area. The dam features a controlled spillway and one valve outlet gate, contributing to its overall safety measures. While the dam's condition assessment is currently marked as "Not Rated," its last inspection in August 2010 indicates a regular inspection frequency of every 5 years for maintenance and safety purposes.
As a key structure in the Tulsa District managed by the Natural Resources Conservation Service, Oknoname 051027 plays a crucial role in water management and flood control efforts in the region. With its strategic location and significant storage capacity, this earth dam serves as a vital resource for maintaining water quality and mitigating potential risks related to extreme weather events and climate variability.
Year Completed |
1960 |
Dam Length |
840 |
Dam Height |
25 |
River Or Stream |
TR-WASHITA RIVER |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
25 |
Nid Storage |
120 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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 051027