Mann Rose Ann Reservoir Report
Nearby: Laughlin Oknoname 30207
Last Updated: December 14, 2025
Mann Rose Ann is a privately owned dam located in Kingfisher, Oklahoma, along the TR-Dead Indian Creek.
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Summary
Built in 1960, this earth dam stands at a height of 27 feet and has a storage capacity of 95 acre-feet. The dam serves a primary purpose of "Other" and is regulated by the Oklahoma Water Resources Board, with state permitting, inspection, and enforcement in place.
Despite being classified as having a low hazard potential, Mann Rose Ann is associated with a very high risk assessment, indicating the need for careful monitoring and risk management measures. The dam features a controlled spillway and a single valve outlet gate for water release. The last inspection of the dam took place in July 2005, with an inspection frequency of 5 years. While the dam's condition is currently rated as "Not Rated," the risk assessment suggests a heightened level of caution for water resource and climate enthusiasts interested in this structure.
Year Completed |
1960 |
Dam Length |
390 |
Dam Height |
27 |
River Or Stream |
TR-DEAD INDIAN CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
95 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
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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.
Mann Rose Ann