Lomas Del Sur Detention Pond Dam Reservoir Report
Nearby: Wright Dam No 2 Wright Dam No 4
Last Updated: December 5, 2025
Lomas Del Sur Detention Pond Dam, located in Laredo, Texas, was completed in 1911 with the primary purpose of flood risk reduction along the TR-RIO GRANDE river.
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Summary
This private earth dam stands at a height of 13 feet and has a length of 2800 feet, providing a storage capacity of 97 acre-feet. Despite its age, the dam is regulated, inspected, and enforced by the Texas Commission on Environmental Quality (TCEQ), ensuring its continued safety and functionality.
The dam, designed by Sherfey Engineering LLC, is classified as a buttress dam with no spillway, outlet gates, or locks. While the hazard potential is not available and the condition is not rated, the risk assessment indicates a high risk level of 2. With a drainage area of 0.65 square miles and a surface area of 8.8 acres, the dam plays a crucial role in mitigating flood risks in the region. Although the last inspection dates back to 1978, the dam's operation and maintenance are likely to be closely monitored by the relevant authorities.
Environmental enthusiasts and climate advocates will appreciate the significance of Lomas Del Sur Detention Pond Dam in managing water resources and protecting the surrounding area from potential flooding events. As a key infrastructure in flood risk reduction efforts, the dam's presence highlights the importance of sustainable water management practices in the face of changing climate conditions. With ongoing regulatory oversight and potential risk management measures, the dam serves as a vital component in safeguarding the community and the environment from the impacts of extreme weather events.
Year Completed |
1911 |
Dam Length |
2800 |
Dam Height |
13 |
River Or Stream |
TR-RIO GRANDE |
Primary Dam Type |
Earth |
Surface Area |
8.8 |
Drainage Area |
0.65 |
Nid Storage |
97 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rio Grande At Laredo
|
1760cfs |
Zacate Ck At Laredo
|
0cfs |
San Casimiro Ck Nr Freer
|
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.
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