Johnny Martin Dam Reservoir Report
Nearby: Blewer Pond Doug Harris Dam
Last Updated: December 7, 2025
Johnny Martin Dam, located in Brewton's Mill, Louisiana, is a privately owned structure designed for recreational purposes along the TR-Dugdemona River.
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Summary
The dam, primarily constructed of earth with buttress and stone cores, stands at a height of 15 feet and has a maximum storage capacity of 113 acre-feet. Despite its low hazard potential and fair condition assessment, the dam is regulated by the Louisiana Department of Transportation and Development, ensuring its safety and compliance with state regulations.
This 590-foot long dam features an uncontrolled spillway with a width of 80 feet, serving the surrounding area with a surface area of 15 acres for recreational activities. With a normal storage capacity of 98 acre-feet, Johnny Martin Dam offers opportunities for boating, fishing, and other leisure pursuits in Winn County, Louisiana. The dam has undergone inspections every five years, with the last assessment conducted in September 2019, indicating a moderate risk level (3) and the implementation of suitable risk management measures.
Managed by a private entity, Johnny Martin Dam contributes to the local community's water resource management, providing both recreational benefits and a source of moderate risk that necessitates ongoing monitoring and maintenance. As an integral part of the Vicksburg District's water infrastructure, this structure exemplifies the intersection of water resource development, climate resilience, and public safety in the context of Louisiana's diverse environmental landscape.
Dam Length |
590 |
Dam Height |
15 |
River Or Stream |
TR-DUGDEMONA RIVER |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
13 |
Nid Storage |
113 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Saline Bayou Near Lucky
|
62cfs |
Dugdemona River Near Joyce
|
205cfs |
Bayou Pierre Near Lake End
|
243cfs |
Little River Near Rochelle
|
729cfs |
Big Creek At Pollock
|
34cfs |
Red Chute Bayou At Sligo
|
59cfs |
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.
Johnny Martin Dam