Mcgee No 1 Reservoir Report
Nearby: Mcgee No 2 Fowler
Last Updated: December 5, 2025
Mcgee No 1 is a privately owned irrigation dam located in Bryan County, Oklahoma, near the town of Bray-Maxwell School.
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Summary
Built in 1970 by the USDA NRCS, this earth dam stands at a height of 25 feet and has a storage capacity of 61 acre-feet. The dam's primary purpose is to support irrigation activities along the TR-Blue River, with a surface area of 4 acres and a controlled spillway width of 1 foot.
Despite its age, Mcgee No 1 has a low hazard potential and is classified as being in "Not Rated" condition. The dam has one outlet valve and has not been significantly modified since its completion. The risk assessment for this dam is rated as "Very High (1)", indicating that potential risks associated with the structure are closely monitored. The dam is regularly inspected by the state regulatory agency, OWRB, with the last inspection conducted in September 1999.
In the event of an emergency, it is important to note that Mcgee No 1 does not have an Emergency Action Plan (EAP) prepared. However, the dam is equipped with measures to manage risks effectively. With its historical significance in supporting irrigation activities and its location along the TR-Blue River, Mcgee No 1 remains a vital water resource for the surrounding community and highlights the importance of sustainable water management practices in the face of changing climate conditions.
Year Completed |
1970 |
Dam Length |
475 |
Dam Height |
25 |
River Or Stream |
TR-BLUE RIVER |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
22 |
Nid Storage |
61 |
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.
Mcgee No 1