Ewing Kathryne H. Reservoir Report
Last Updated: December 6, 2025
Ewing Kathryne H.
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Summary
is a privately owned dam located in Kiowa County, Oklahoma, near the city of Mountain View. Built in 1962 by the USDA NRCS, this earth dam stands at a height of 10 feet and spans a length of 3410 feet. It serves the primary purpose of flood risk reduction along the TR-LONGHORN CR river. The dam has a storage capacity of 60 acre-feet and a surface area of 5 acres.
Despite being classified as having a low hazard potential, Ewing Kathryne H. is considered to have a very high risk due to its condition assessment being listed as "Not Rated". The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of a single valve. The last inspection of the dam was conducted in October 2010, with an inspection frequency of every 5 years. The regulatory oversight for Ewing Kathryne H. falls under the Oklahoma Water Resources Board, which handles permitting, inspections, and enforcement.
For water resource and climate enthusiasts, Ewing Kathryne H. presents an intriguing case study of a privately owned dam in Oklahoma that plays a crucial role in flood risk reduction. With its unique design features and historical significance, this earth dam serves as a reminder of the importance of proper maintenance and regulatory oversight to ensure the safety and functionality of water infrastructure. As discussions around climate change and water management continue to evolve, Ewing Kathryne H. stands as a key example of the intersection between human-made structures and environmental resilience.
Year Completed |
1962 |
Dam Length |
3410 |
Dam Height |
10 |
River Or Stream |
TR-LONGHORN CR |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
10 |
Nid Storage |
60 |
Structural Height |
10 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
10 |
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.
Ewing Kathryne H.