Long Creek Dam No 20 Reservoir Report
Nearby: Long Creek Dam No.19 Ms04399 Lake Dam
Last Updated: December 13, 2025
Long Creek Dam No 20, located in Panola, Mississippi, was completed in 1998 and serves as a crucial structure for flood risk reduction in the area.
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Summary
This private dam has a height of 20.6 feet and a storage capacity of 153.28 acre-feet, with a primary purpose of flood risk reduction. The dam is classified as an Earth dam with a Buttress core type, and is regulated by the Mississippi Department of Environmental Quality.
Despite being categorized with a low hazard potential, Long Creek Dam No 20 is considered to have a moderate risk level. The dam features an uncontrolled spillway type with a maximum discharge of 240 cubic feet per second. While the condition assessment is currently not rated, the dam is inspected, permitted, and regulated by the state, ensuring its safety and functionality. With a risk management plan in place, the dam's operational and emergency response measures are continuously monitored to mitigate potential risks.
For water resource and climate enthusiasts, Long Creek Dam No 20 offers a valuable case study in dam infrastructure and management. As a key component in the flood risk reduction strategy for the region, this dam showcases the importance of proper regulation, maintenance, and risk assessment in safeguarding communities and ecosystems. With its location along the Long Creek tributary and its vital role in water storage and discharge, Long Creek Dam No 20 exemplifies the intersection of human intervention and natural resource management in the face of changing climate patterns.
Year Completed |
1998 |
Dam Height |
20.6 |
River Or Stream |
UNT OF LONG CREEK |
Surface Area |
11.14 |
Nid Storage |
153.28 |
Hazard Potential |
Low |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hotopha Creek Nr Batesville
|
13cfs |
Otoucalofa Creek Canal Nr Water Valley
|
25cfs |
Yocona River Nr Oxford
|
42cfs |
Yalobusha River At Grenada
|
430cfs |
Batupan Bogue At Grenada
|
16cfs |
Skuna River At Bruce
|
14cfs |
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.
Long Creek Dam No 20
County Road 189 Yalobusha County