Pevey Summer Lake Dam Reservoir Report
Last Updated: December 5, 2025
Pevey Summer Lake Dam, located in Caddo, Louisiana, along the TR-JOHNSON BRANCH river, was completed in 1970 and primarily serves as a recreational facility.
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Summary
The dam, standing at a height of 17 feet with a hydraulic height of 15 feet, boasts a length of 650 feet and a storage capacity of 162 acre-feet. With a low hazard potential and fair condition assessment, the dam is regulated by the Louisiana Department of Transportation and Development, ensuring regular inspections and enforcement to maintain its integrity.
The dam features an uncontrolled spillway with a width of 130 feet, capable of discharging up to 1125 cubic feet per second. Despite its moderate risk assessment, the Pevey Summer Lake Dam remains a vital structure for water resource management and climate enthusiasts in the region. With its earth core and buttress stone foundation, the dam plays a crucial role in flood control and water storage, offering a picturesque setting for recreational activities and wildlife habitat preservation.
As a private-owned structure, the Pevey Summer Lake Dam contributes to the local ecosystem and community by providing a safe and enjoyable environment for outdoor enthusiasts. With its regulated state jurisdiction and regular inspections, the dam ensures the safety of residents and wildlife while also serving as a valuable resource for water conservation and climate resilience efforts in the area.
Year Completed |
1970 |
Dam Length |
650 |
Dam Height |
17 |
River Or Stream |
TR-JOHNSON BRANCH |
Primary Dam Type |
Earth |
Surface Area |
19 |
Hydraulic Height |
15 |
Drainage Area |
0.6 |
Nid Storage |
162 |
Structural Height |
19 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cypress Bayou Near Keithville
|
11cfs |
Sabine Rv Nr Carthage
|
9200cfs |
Red Chute Bayou At Sligo
|
55cfs |
Bayou Grand Cane Near Stanley
|
6cfs |
Sabine Rv Nr Beckville
|
946cfs |
Bayou San Patricio Near Benson
|
29cfs |
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.
Pevey Summer Lake Dam