Bayou Dupont No 4 Reservoir Report
Nearby: Bayou Dupont No 2 Bayou Dupont No 7
Last Updated: December 9, 2025
Bayou Dupont No 4, also known as Rains Pond, is a privately owned earth dam located in Sabine, Louisiana.
°F
°F
mph
Wind
%
Humidity
Summary
Managed by the USDA NRCS and regulated by the Louisiana Department of Transportation and Development, this dam serves primarily for flood risk reduction but also supports fish and wildlife habitat and recreational activities. Completed in 1961, the dam stands at a height of 27 feet with a length of 1120 feet, providing a storage capacity of 647 acre-feet and a drainage area of 1.13 square miles.
Despite its significant hazard potential and poor condition assessment, Bayou Dupont No 4 has a moderate risk rating and undergoes inspections every three years. The spillway, designed as uncontrolled, has a width of 12 feet, allowing for a maximum discharge of 1060 cubic feet per second. Although the dam lacks certain features like outlet gates and locks, it remains a vital structure for managing water resources and protecting the surrounding area from flooding events. With its historical significance and continued relevance in water resource management, Bayou Dupont No 4 exemplifies the intersection of infrastructure, environmental stewardship, and climate resilience in Louisiana's landscape.
Year Completed |
1961 |
Dam Length |
1120 |
Dam Height |
23 |
River Or Stream |
TR-BAYOU DUPONT |
Primary Dam Type |
Earth |
Surface Area |
39 |
Hydraulic Height |
23 |
Drainage Area |
1.13 |
Nid Storage |
647 |
Structural Height |
27 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bayou Pierre Near Lake End
|
187cfs |
Bayou San Patricio Near Benson
|
0cfs |
Bayou Toro Near Toro
|
41cfs |
Bayou Grand Cane Near Stanley
|
5cfs |
Sabine Rv At Toledo Bd Res Nr Burkeville
|
132cfs |
Sabine Rv Nr Burkeville
|
204cfs |
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.
Bayou Dupont No 4