Florence Mc Donald Reservoir Report
Nearby: Houck Kenneth Hollis J.B.
Last Updated: January 2, 2026
Florence Mc Donald is a privately owned earth dam located in Greer, Oklahoma, with a dam height of 19 feet and a length of 550 feet.
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Summary
Completed in 1977, this structure has a storage capacity of 82 acre-feet and serves a drainage area of 0.45 square miles. With a maximum discharge of 428 cubic feet per second, the dam features an uncontrolled spillway with a width of 46 feet.
Managed by the USDA NRCS, Florence Mc Donald is classified as having a low hazard potential and a moderate risk assessment rating. Despite not being regulated by the state, the dam has not been rated for its condition assessment, emergency action plan, or inundation maps. With no associated structures or inspection history available, the risk management measures for this dam remain unspecified.
This dam, situated in the Tulsa District, is a key component of the local water resource infrastructure in Oklahoma. For water resource and climate enthusiasts, Florence Mc Donald presents an interesting case study of a privately owned dam with limited regulatory oversight and risk assessment. Further research and monitoring may be needed to ensure the safety and resilience of this vital water retention structure.
Year Completed |
1977 |
Dam Length |
550 |
Dam Height |
19 |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
19 |
Drainage Area |
0.45 |
Nid Storage |
82 |
Hazard Potential |
Low |
Nid Height |
19 |
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.
Florence Mc Donald