Bayou Dupont No 17 Reservoir Report
Nearby: Bayou Dupont No 14 Bayou Dupont No 15
Last Updated: December 9, 2025
Bayou Dupont No 17, also known as Lemon, is a private earth dam located in Natchitoches, Louisiana, designed by the USDA NRCS.
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Summary
Built in 1958, this dam serves primarily for flood risk reduction, but also supports fish and wildlife ponds and recreational activities. With a height of 28 feet and a length of 1010 feet, the dam has a storage capacity of 951 acre-feet and a drainage area of 1.47 square miles.
Managed by the Louisiana Department of Transportation and Development, Bayou Dupont No 17 has a significant hazard potential and is classified as being in fair condition as of the last inspection in July 2020. The dam features an uncontrolled spillway with a width of 10 feet, allowing for a maximum discharge of 3330 cubic feet per second. Despite its moderate risk assessment, the dam has not undergone any recent modifications or risk management measures.
Enthusiasts of water resources and climate in the area should be aware of Bayou Dupont No 17's role in flood risk reduction and its potential impact on the surrounding environment. As a key structure in the region's water management system, it is important to monitor and maintain this dam to ensure its continued effectiveness in protecting the community from flooding events.
Year Completed |
1958 |
Dam Length |
1010 |
Dam Height |
28 |
River Or Stream |
TR-CRIB CREEK |
Primary Dam Type |
Earth |
Surface Area |
56 |
Hydraulic Height |
28 |
Drainage Area |
1.47 |
Nid Storage |
951 |
Structural Height |
36 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bayou Pierre Near Lake End
|
187cfs |
Bayou Toro Near Toro
|
41cfs |
Bayou San Patricio Near Benson
|
0cfs |
Sabine Rv At Toledo Bd Res Nr Burkeville
|
132cfs |
Sabine Rv Nr Burkeville
|
204cfs |
Bayou Grand Cane Near Stanley
|
5cfs |
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 17