Little Black Creek Water Park Dam Reservoir Report
Last Updated: December 5, 2025
Little Black Creek Water Park Dam, also known as Pat Harrison Waterway Lake Dam, is a state-regulated recreational structure located in Lamar, Mississippi.
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Summary
Built in 1971 by OWEN & WHITE, INC., this earth dam stands at a height of 18 feet and has a storage capacity of 3500 acre-feet. The primary purpose of this dam is for recreation, serving as a popular spot for water enthusiasts in the area.
With a surface area of 600 acres and a drainage area of 16.2 square miles, Little Black Creek Water Park Dam offers a picturesque setting for outdoor activities. Despite being deemed to have a high hazard potential, the dam is currently in fair condition as of the last assessment in March 2020. Regular inspections are conducted, with the most recent inspection taking place in March 2021. Despite its moderate risk level, measures are in place to ensure the safety and maintenance of this vital water resource in Mississippi.
Year Completed |
1971 |
Dam Height |
18 |
Primary Dam Type |
Earth |
Surface Area |
600 |
Drainage Area |
16.2 |
Nid Storage |
3500 |
Hazard Potential |
High |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Black Creek Nr Brooklyn
|
641cfs |
Leaf River At Hattiesburg
|
1360cfs |
Pearl River Nr Columbia
|
2920cfs |
Bouie Creek Nr Hattiesburg
|
438cfs |
Leaf River Nr New Augusta
|
1590cfs |
Tallahala Creek Nr Runnelstown
|
93cfs |
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.
Little Black Creek Water Park Dam