Jennings Lake Dam Reservoir Report

Last Updated: December 5, 2025

Jennings Lake Dam, located in Sulphur Springs, Texas, is a privately owned earth dam completed in 1964 for fire protection, stock, and as a small fish pond.


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Summary

The dam is situated on TR-Rock Creek and stands at a height of 17.4 feet with a length of 2200 feet, providing a storage capacity of 117 acre-feet. Despite its primary purpose, the dam also serves for recreational activities in the area, offering a serene setting for visitors to enjoy.

Managed by the Texas Commission on Environmental Quality (TCEQ), Jennings Lake Dam has undergone modifications in 2003 to enhance its structural integrity. The dam features an uncontrolled spillway with a width of 35 feet and an outlet gate for water release. Regular inspections have been conducted, with the last assessment in December 2015, indicating a moderate risk level. While the dam's condition is not currently rated, its risk management measures ensure the safety of the surrounding community and the environment.

For water resource and climate enthusiasts, Jennings Lake Dam represents a vital infrastructure supporting various purposes while also highlighting the importance of dam safety and risk assessment. The dam's presence on Rock Creek contributes to the local ecosystem and provides a valuable resource for water storage and recreational activities. Monitoring and maintenance efforts continue to uphold the dam's integrity, ensuring its continued function and safety in the face of changing environmental conditions.

Years Modified

2003 - Structural

Year Completed

1964

Dam Length

2200

Dam Height

17.4

River Or Stream

TR-ROCK CREEK

Primary Dam Type

Earth

Surface Area

12.5

Hydraulic Height

17.4

Drainage Area

0.33

Nid Storage

117

Structural Height

17.4

Outlet Gates

Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

17
       
Seasonal Comparison

Weather Forecast

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.