Harris Mary E. Reservoir Report
Nearby: Oknoname 083040 Oknoname 083039
Last Updated: December 17, 2025
Harris Mary E.
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Summary
is a private water resource structure located in Mulhall, Oklahoma, along the TR-West Beaver Creek. This earth dam, built in 1965, stands at a height of 26 feet and has a length of 250 feet, with a maximum storage capacity of 65 acre-feet. The dam's primary purpose is listed as 'Other', with a low hazard potential rating and a very high risk assessment score of 1. Despite its low hazard potential, the dam is regulated and inspected by the Oklahoma Water Resources Board (OWRB) to ensure its safety and functionality.
The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of one valve. Although the structure has not been rated for its condition assessment, it undergoes inspections every 5 years, with the last one conducted in August 2011. The dam is situated within the Tulsa District of the US Army Corps of Engineers, with state jurisdiction and permitting in place for its operation and maintenance. Harris Mary E. serves as a vital component of the local water resource infrastructure, contributing to the management of water flow and storage in the region.
Enthusiasts of water resources and climate will find Harris Mary E. to be a fascinating case study in dam construction and management. With its unique design features, location, and regulatory oversight, this structure offers valuable insights into the intersection of human intervention in natural water systems. Its role in mitigating flood risk and providing water storage highlights the importance of sustainable water resource management practices in the face of evolving climate conditions. By understanding and monitoring structures like Harris Mary E., we can work towards a more resilient and adaptive approach to water resource management in the future.
Year Completed |
1965 |
Dam Length |
250 |
Dam Height |
26 |
River Or Stream |
TR-WEST BEAVER CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
26 |
Nid Storage |
65 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Skeleton Creek Near Lovell
|
27cfs |
Cimarron River Near Guthrie
|
453cfs |
Cottonwood Creek Near Seward
|
64cfs |
Cimarron River Near Dover
|
304cfs |
Skeleton Creek At Enid
|
6cfs |
Cimarron River Near Ripley
|
493cfs |
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.
Harris Mary E.