Light Lake No 3 Dam Reservoir Report
Last Updated: December 6, 2025
Light Lake No 3 Dam, located in Dimmit, Texas, was completed in 1974 and stands at a height of 17 feet.
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Summary
This private dam serves as a crucial water resource for the area, with a storage capacity of 95 acre-feet and a normal storage level of 65 acre-feet. The dam, primarily built for purposes other than flood control or hydropower generation, is classified as an earth dam with a buttress core type.
Despite its importance, the dam does not have a spillway and is not regulated by the state. It also lacks inspection ratings and emergency preparedness assessments. However, with a high risk potential due to its condition assessment not being rated, there is a need for proactive risk management measures to ensure the safety and longevity of this essential water structure. For water resource and climate enthusiasts, Light Lake No 3 Dam presents a compelling case study in balancing water management needs with infrastructure risks in the face of changing climate conditions.
Year Completed |
1974 |
Dam Length |
1750 |
Dam Height |
17 |
River Or Stream |
TR-SAN ROQUE CREEK |
Primary Dam Type |
Earth |
Surface Area |
11.6 |
Hydraulic Height |
17 |
Nid Storage |
95 |
Structural Height |
17 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nueces Rv Nr Asherton
|
0cfs |
Nueces Rv At Cotulla
|
0cfs |
Frio Rv Nr Derby
|
0cfs |
San Casimiro Ck Nr Freer
|
0cfs |
Zacate Ck At Laredo
|
0cfs |
Nueces Rv Nr Tilden
|
0cfs |
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.
Light Lake No 3 Dam