Riley Dam Reservoir Report
Nearby: Risher Lake Dam Clifton Mcleod Lake
Last Updated: December 21, 2025
Riley Dam, located in Natchez, Mississippi, was completed in 1993 and serves as a vital structure for flood risk reduction along the UNT of Kittering river.
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Summary
This privately owned dam stands at a height of 26 feet with a hydraulic height of 24 feet, and a length of 143 feet. With a normal storage capacity of 14 acre-feet and a maximum storage of 31 acre-feet, the dam plays a crucial role in managing water resources in the area.
Although Riley Dam is classified as having a low hazard potential, it is still regulated by the Mississippi Department of Environmental Quality, ensuring that it meets all necessary safety and environmental standards. Despite not having a current condition assessment rating, the dam is regularly inspected to ensure its structural integrity and functionality. Additionally, the dam is equipped with an uncontrolled spillway and can handle a maximum discharge of 88 cubic feet per second, further highlighting its importance in flood risk management.
Overall, Riley Dam is a key component in the water resource infrastructure of Adams County, Mississippi, providing essential flood risk reduction benefits to the local community. Its moderate risk assessment rating underscores the importance of continued monitoring and maintenance to ensure its long-term effectiveness in protecting the surrounding area from potential flooding events.
Year Completed |
1993 |
Dam Length |
143 |
Dam Height |
26 |
River Or Stream |
UNT OF KITTERING |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
24 |
Drainage Area |
0.05 |
Nid Storage |
31 |
Hazard Potential |
Low |
Nid Height |
26 |
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.
Riley Dam