Lake Ruby Dam Reservoir Report
Last Updated: December 7, 2025
Lake Ruby Dam, located in Pelahatchie, Mississippi, was completed in 2008 and serves as a vital recreational resource for the community.
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Summary
The dam, primarily made of earth and stone, stands at a height of 28 feet and has a storage capacity of 1277 acre-feet. With a surface area of 83.3 acres and a drainage area of 0.79 square miles, the dam plays a crucial role in managing water flow and providing opportunities for outdoor activities like fishing and boating.
Despite being privately owned, Lake Ruby Dam is regulated by the Mississippi Department of Environmental Quality, ensuring that the structure meets necessary safety standards. The dam has a high hazard potential, but a recent assessment deemed its condition as fair. Regular inspections are conducted to monitor its safety, with the last assessment taking place in February 2021. While the dam poses a moderate risk, appropriate risk management measures are in place to mitigate any potential issues and ensure the safety of surrounding communities.
With its picturesque surroundings and recreational offerings, Lake Ruby Dam stands as a testament to the importance of water resource management in maintaining a balance between human enjoyment and environmental conservation. Climate and water resource enthusiasts will find this dam a fascinating example of how infrastructure can harmoniously coexist with nature while serving the needs of local communities.
Year Completed |
2008 |
Dam Length |
1460 |
Dam Height |
28 |
River Or Stream |
UNT OF PELAHATCHIE |
Primary Dam Type |
Earth |
Surface Area |
83.3 |
Hydraulic Height |
28 |
Drainage Area |
0.79 |
Nid Storage |
1277 |
Structural Height |
29 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hanging Moss Creek Nr Jackson
|
356cfs |
Pearl River At Jackson
|
738cfs |
Pearl River Nr Lena
|
624cfs |
South Canal Tuscolameta Creek Nr Walnut Grove
|
8cfs |
Tuscolameta Creek At Walnut Grove
|
319cfs |
Lynch Creek At Jackson
|
1100cfs |
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.
Lake Ruby Dam