Okonatie Ws Str Ut-25-1 Dam Reservoir Report
Last Updated: December 6, 2025
Okonatie WS Str Ut-25-1 Dam, located in New Harmony, Mississippi, is a vital structure designed by the USDA NRCS to address flood risk reduction in the area.
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Summary
Completed in 1958, this earth dam stands at a height of 28 feet and stretches 560 feet in length. It serves the primary purpose of flood risk reduction and is regulated by the Mississippi Department of Environmental Quality, ensuring proper inspection and enforcement protocols are in place.
With a storage capacity of 328 acre-feet and a surface area of 12 acres, the dam plays a crucial role in managing water flow from the TR- OKONATIE and Caldwell Creek. Despite its high hazard potential and unsatisfactory condition assessment, the dam continues to operate with uncontrolled spillways and outlet gates. Regular inspections are conducted to ensure safety measures are upheld, with a moderate risk assessment rating of 3 indicating the need for ongoing risk management measures.
As water resource and climate enthusiasts, the Okonatie WS Str Ut-25-1 Dam offers an intriguing case study in flood risk reduction infrastructure. Its historical significance, structural design, and operational challenges provide valuable insights into the complex interplay between water management, environmental regulations, and community resilience. By understanding and analyzing the dynamics of this dam, enthusiasts can contribute to the ongoing dialogue on sustainable water resource management and climate adaptation strategies in the Mississippi region.
Year Completed |
1958 |
Dam Length |
560 |
Dam Height |
28 |
River Or Stream |
TR- OKONATIE; CALDWELL CREEK |
Primary Dam Type |
Earth |
Surface Area |
12 |
Drainage Area |
0.79 |
Nid Storage |
328 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Town Creek At Eason Boulevard At Tupelo
|
65cfs |
Little Tallahatchie River At Etta
|
220cfs |
Twentymile Creek Nr Guntown
|
36cfs |
Tombigbee River Nr Fulton
|
182cfs |
Town Creek Nr Nettleton
|
218cfs |
Cummings Creek Nr Fulton
|
26cfs |
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.
Okonatie Ws Str Ut-25-1 Dam