Ernest Max Robinson Reservoir Report
Nearby: Tommy Shepard Roberts No 2
Last Updated: December 6, 2025
Ernest Max Robinson is a private irrigation dam located in Bryan County, Oklahoma, designed by the USDA NRCS and completed in 1974.
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Summary
With a dam height of 16 feet and a length of 802 feet, this earth-type structure serves the primary purpose of irrigation, providing a storage capacity of 60 acre-feet and covering a surface area of 10 acres. The dam has a low hazard potential and a moderate risk assessment rating.
Despite being privately owned and not regulated by the state, Ernest Max Robinson plays a crucial role in water resource management in the area. Situated in the SW1/4 of S31 T07 R10, the dam serves as a key infrastructure for agricultural activities in the region, ensuring a stable water supply for irrigation purposes. With a maximum discharge capacity of 215 cfs and an uncontrolled spillway width of 39 feet, the dam is equipped to handle potential water flow during heavy rainfall events.
Although not currently rated for its condition, Ernest Max Robinson stands as a testament to the collaborative efforts of the Natural Resources Conservation Service and private landowners in enhancing water resource sustainability. As a significant feature in the local landscape, this irrigation dam contributes to the resilience of the agricultural sector in Bryan County, Oklahoma, highlighting the importance of private water infrastructure in supporting climate-resilient practices for sustainable water management.
Year Completed |
1974 |
Dam Length |
802 |
Dam Height |
16 |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
16 |
Drainage Area |
0.19 |
Nid Storage |
60 |
Hazard Potential |
Low |
Nid Height |
16 |
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.
Ernest Max Robinson