Chiwapa Watershed Structure 65 Dam Reservoir Report
Last Updated: December 6, 2025
Located in Pontotoc, Mississippi, the Chiwapa Watershed Structure 65 Dam, also known as Chiwapa Creek Dam 65, was completed in 1966 by the USDA NRCS.
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Summary
This earth dam, with a height of 28 feet and a length of 650 feet, serves the primary purpose of flood risk reduction along the Chiwapa Creek. With a normal storage capacity of 69 acre-feet and a maximum storage of 337 acre-feet, the dam covers a drainage area of 1.21 square miles.
The dam, regulated by the Mississippi Department of Environmental Quality, has a fair condition assessment and a high hazard potential. It is equipped with an uncontrolled spillway and outlet gates. The last inspection was conducted in June 2020, with an inspection frequency of 5 years. Despite its moderate risk level, the Chiwapa Watershed Structure 65 Dam remains a crucial structure in mitigating flood risks in the region and ensuring the safety of nearby communities.
For water resource and climate enthusiasts, the Chiwapa Watershed Structure 65 Dam presents an intriguing case study in flood risk reduction and dam management. With its unique design features and historical significance, this earth dam continues to play a vital role in protecting the surrounding area from potential flooding events. As efforts to enhance its safety and resilience continue, the dam serves as a testament to the importance of sustainable water resource management in the face of changing climate patterns.
Year Completed |
1966 |
Dam Length |
650 |
Dam Height |
28 |
River Or Stream |
CHIWAPA CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Drainage Area |
1.21 |
Nid Storage |
337 |
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 |
Town Creek Nr Nettleton
|
218cfs |
Twentymile Creek Nr Guntown
|
36cfs |
Tombigbee River Nr Fulton
|
182cfs |
Little Tallahatchie River At Etta
|
220cfs |
Tombigbee River Nr Amory
|
3330cfs |
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.
Chiwapa Watershed Structure 65 Dam