Walton Allen Reservoir Report
Nearby: Oknoname 051033 Oknoname 051034
Last Updated: January 11, 2026
Walton Allen is a private earth dam located in Chickasha, Oklahoma, along TR-Rock Hollow Creek.
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Summary
Completed in 1950, this structure stands at a height of 30 feet and has a storage capacity of 130 acre-feet. The dam's primary purpose is classified as "Other," and it is regulated by the Oklahoma Water Resources Board.
Despite being rated with a low hazard potential, Walton Allen is categorized as having a very high risk due to its condition assessment being marked as "Not Rated." The dam features a controlled spillway and one outlet gate, with a maximum discharge capacity of 530 cubic feet per second. Although last inspected in 2010, the structure is subject to routine inspections every 5 years to ensure its safety and functionality.
Located within the Tulsa District of the US Army Corps of Engineers, Walton Allen serves as a critical water resource for the surrounding area. As climate change continues to impact water availability and quality, the proper maintenance and management of such dams are essential for ensuring water security and mitigating potential risks associated with extreme weather events.
Year Completed |
1950 |
Dam Length |
310 |
Dam Height |
30 |
River Or Stream |
TR-ROCK HOLLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
30 |
Nid Storage |
130 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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.
Walton Allen