Stewart Impoundment Reservoir Report
Nearby: Kepler Creek Dam Continental Lake
Last Updated: December 7, 2025
Stewart Impoundment is a privately owned dam located in Bienville, Louisiana, along the Castor Creek.
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Summary
Completed in 1973, this earth dam stands at a height of 20 feet and has a maximum storage capacity of 180 acre-feet. The primary purpose of Stewart Impoundment is for recreation, offering a surface area of 18.8 acres for activities such as boating and fishing.
Despite its low hazard potential, Stewart Impoundment has been rated as having poor condition as of the last inspection in July 2018. The dam features an uncontrolled spillway with a width of 30 feet and a maximum discharge capacity of 400 cubic feet per second. With a drainage area of 0.46 square miles, the dam poses a moderate risk level and is under the regulatory oversight of the Louisiana Department of Transportation and Development.
Water resource and climate enthusiasts may find Stewart Impoundment to be an interesting case study in dam management and maintenance. The dam's poor condition assessment highlights the importance of regular inspections and maintenance to ensure the safety and integrity of water infrastructure. As climate change continues to impact water resources, it is crucial for stakeholders to prioritize risk management measures and emergency preparedness to mitigate potential hazards associated with aging dams like Stewart Impoundment.
Year Completed |
1973 |
Dam Length |
1145 |
Dam Height |
20 |
River Or Stream |
TR - CASTOR CREEK |
Primary Dam Type |
Earth |
Surface Area |
18.8 |
Hydraulic Height |
15 |
Drainage Area |
0.46 |
Nid Storage |
180 |
Structural Height |
20 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Saline Bayou Near Lucky
|
49cfs |
Bayou Pierre Near Lake End
|
234cfs |
Red Chute Bayou At Sligo
|
57cfs |
Dugdemona River Near Joyce
|
246cfs |
Cypress Bayou Near Keithville
|
10cfs |
Bayou San Patricio Near Benson
|
8cfs |
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.
Stewart Impoundment