Light Lake No 1 Dam Reservoir Report
Last Updated: December 6, 2025
Light Lake No 1 Dam, located in Dimmit, Texas, is a private earth dam that was completed in 1974 for the primary purpose of water supply.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, standing at a height of 14 feet and a length of 1000 feet, has a storage capacity of 94 acre-feet, with a normal storage level of 43 acre-feet. Despite being privately owned, the dam is permitted and inspected by the state of Texas, ensuring its safety and functionality for the community it serves.
Situated on TR-San Roque Creek and managed by the Galveston District of the US Army Corps of Engineers, Light Lake No 1 Dam plays a crucial role in providing water resources for the surrounding area. With a surface area of 10.4 acres, the dam serves as a vital infrastructure for water management in the region. While the dam's hazard potential is not available, it has been classified as having a high risk level, emphasizing the importance of proper risk management and maintenance to ensure its continued effectiveness.
Although the dam's condition is currently unrated, its strategic location and purpose make it a key asset for water resource management in Dimmit, Texas. With no spillway and limited information on its maintenance history, ensuring the safety and functionality of Light Lake No 1 Dam remains a priority for the community and authorities involved in its oversight. As climate change continues to impact water resources, the role of dams like Light Lake No 1 becomes increasingly significant in safeguarding water supply for future generations.
Year Completed |
1974 |
Dam Length |
1000 |
Dam Height |
14 |
River Or Stream |
TR-SAN ROQUE CREEK |
Primary Dam Type |
Earth |
Surface Area |
10.4 |
Hydraulic Height |
14 |
Nid Storage |
94 |
Structural Height |
14 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
14 |
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 |
Rio Grande At Laredo
|
1760cfs |
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 1 Dam