Ottis Robertson Lake Dam Reservoir Report
Nearby: Ms06526 Lake Dam Elmore Pond Dam
Last Updated: December 6, 2025
Ottis Robertson Lake Dam, located in Runnelstown, Mississippi, was completed in 1947 and is primarily used for recreation purposes.
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Summary
Owned privately, this earth dam with a buttress core stands at 12 feet in height and has a storage capacity of 90 acre-feet. The dam, designed by USDA NRCS, spans the TR- TALLAHALA river and is regulated by the Mississippi Department of Environmental Quality.
With a low hazard potential and a moderate risk assessment, Ottis Robertson Lake Dam has not been rated for its condition. Despite its uncontrolled spillway and outlet gates, the dam has not undergone an inspection recently. While the dam currently meets safety guidelines, there is room for improvement in terms of risk management measures and emergency action preparedness. For water resource and climate enthusiasts, Ottis Robertson Lake Dam presents an intriguing case study in dam safety and regulation in the state of Mississippi.
Year Completed |
1947 |
Dam Height |
12 |
River Or Stream |
TR- TALLAHALA |
Primary Dam Type |
Earth |
Nid Storage |
90 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tallahala Creek At Laurel
|
17cfs |
Okatoma Creek At Sanford
|
541cfs |
Bogue Homo Nr Richton
|
556cfs |
Leaf River At Hattiesburg
|
1360cfs |
Bouie Creek Nr Hattiesburg
|
438cfs |
Leaf River Nr Collins
|
374cfs |
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.
Ottis Robertson Lake Dam