Wallace Lake - Catahoula Dam Reservoir Report
Nearby: Tew Lake Dam Bushley Bayou Dam
Last Updated: December 22, 2025
Wallace Lake - Catahoula Dam, located in Jonesville, Louisiana, is a local government-owned structure primarily designed for recreation purposes.
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Summary
This earth dam stands at a height of 30 feet with a hydraulic height of 10 feet, creating a reservoir with a storage capacity of 3,174 acre-feet. The dam, constructed with buttress and stone core types on a soil foundation, spans 750 feet in length and covers a surface area of 308 acres.
Despite its fair condition assessment and low hazard potential, Wallace Lake - Catahoula Dam is subject to state regulation, inspection, and enforcement by the Louisiana Department of Transportation and Development (LADOTD). The dam features an uncontrolled spillway with a width of 56 feet and has a maximum discharge capacity of 140 cubic feet per second. The structure, last inspected in September 2018, is equipped with needle outlet gates and is situated within Congressional District 05 of Louisiana.
With its moderate risk rating and proximity to a drainage area of 4.8 square miles, Wallace Lake - Catahoula Dam serves as a vital water resource for the region while offering recreational opportunities for visitors. The dam's historical completion year, dam volume, and specific construction details are not provided in the data, but its role in water management and climate resilience underscores the importance of maintaining and monitoring this essential infrastructure for the community.
Dam Length |
750 |
Dam Height |
30 |
River Or Stream |
NONE |
Primary Dam Type |
Earth |
Surface Area |
308 |
Hydraulic Height |
10 |
Drainage Area |
4.8 |
Nid Storage |
3174 |
Structural Height |
30 |
Outlet Gates |
Needle - 0 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little River Near Rochelle
|
132cfs |
Big Creek At Pollock
|
19cfs |
Buffalo River Nr Woodville
|
49cfs |
Bayou Des Glaises Diversion Ch. At Moreauville
|
70cfs |
(Coe) Atchafalaya River At Simmesport
|
65700cfs |
Homochitto River At Rosetta
|
306cfs |
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.
Wallace Lake - Catahoula Dam