Tim Collins Dam Reservoir Report

Last Updated: December 24, 2025

Tim Collins Dam, located in Bienville, Louisiana, is a privately owned structure primarily built for recreation and water supply purposes.


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Summary

The dam, with a height of 14 feet and a length of 508 feet, holds a maximum storage capacity of 80 acre-feet and covers a surface area of 16.22 acres. It is regulated by the Louisiana Department of Transportation and Development, ensuring that the dam meets state inspection, enforcement, and permitting requirements.

Despite its low hazard potential and fair condition assessment, the dam poses a moderate risk, with a risk assessment rating of 3 out of 5. The spillway, of uncontrolled type and 8 feet wide, is designed to handle a maximum discharge of 281 cubic feet per second. The dam has no associated structures and has not been modified since its construction, with the last inspection conducted in August 2017. While the dam meets state regulatory standards, its emergency action plan and risk management measures are not clearly defined.

Overall, Tim Collins Dam serves as a vital water resource infrastructure in the region, providing recreational opportunities and ensuring water supply needs are met. With its strategic location on the TR - Toulon Bayou and its importance to the local community, the dam represents a significant asset that requires ongoing monitoring and maintenance to mitigate potential risks and ensure the safety of surrounding areas.

Dam Length

508

Dam Height

14

River Or Stream

TR - TOULON BAYOU

Primary Dam Type

Earth

Surface Area

16.22

Hydraulic Height

14

Nid Storage

80

Structural Height

14

Outlet Gates

None

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

14
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.