Chiwapa Watershed Structure 7 Dam Reservoir Report
Last Updated: December 6, 2025
Chiwapa Watershed Structure 7 Dam, also known as Chiwapa Creek Project 2008-7, is a vital flood risk reduction structure located in Nettleton, Mississippi.
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Summary
Built in 1966 by the USDA NRCS, this earth dam stands at a height of 29 feet and has a storage capacity of 553 acre-feet. The dam is designed with a buttress core and serves the primary purpose of mitigating flood risks in the area.
State-regulated by the Mississippi Department of Environmental Quality, Chiwapa Watershed Structure 7 Dam is classified as having a low hazard potential and a moderate risk assessment. Despite not being rated for its condition assessment, the dam continues to play a crucial role in managing water resources in Pontotoc County. With an uncontrolled spillway and outlet gates, the dam ensures the safety and stability of the area during periods of heavy rainfall and flooding.
As a key part of the Chiwapa Creek watershed, Structure 7 Dam represents the collaborative efforts of local government and federal agencies in maintaining water infrastructure. Its strategic location and design make it a significant asset in protecting the surrounding communities from potential water-related disasters. With proper regulation and maintenance, this dam continues to serve as a critical piece of water resource management in Mississippi.
Year Completed |
1966 |
Dam Height |
29 |
River Or Stream |
TR- CHIWAPA CREEK |
Primary Dam Type |
Earth |
Drainage Area |
1.69 |
Nid Storage |
553 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Town Creek At Eason Boulevard At Tupelo
|
65cfs |
Town Creek Nr Nettleton
|
218cfs |
Tombigbee River Nr Amory
|
3330cfs |
Little Tallahatchie River At Etta
|
220cfs |
Tombigbee River At Bigbee
|
355cfs |
Skuna River At Bruce
|
71cfs |
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 7 Dam