Lamesa Ranch Dam No 1-64 Reservoir Report
Last Updated: December 5, 2025
Lamesa Ranch Dam No 1-64, located in Webb County, Texas, was completed in 1964 by the USDA NRCS and serves multiple purposes including fire protection, stock, and small fish pond management.
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Summary
This private earth dam stands at a height of 10 feet and spans 750 feet in length, with a storage capacity of 68 acre-feet. Situated on the TR-Rio Grande river, this dam plays a crucial role in managing water resources in the region.
Despite being a privately owned structure, Lamesa Ranch Dam No 1-64 is regulated and inspected by the state of Texas to ensure its safety and functionality. While it does not have a spillway, the dam is equipped with one outlet gate. The risk assessment for this dam is classified as high, indicating the importance of proper maintenance and monitoring to mitigate any potential hazards. Water resource and climate enthusiasts will find this dam an interesting case study in sustainable water management practices.
The presence of Lamesa Ranch Dam No 1-64 highlights the vital role that private entities play in water resource management and conservation efforts. With its strategic location and multiple utility purposes, this dam serves as a testament to the collaborative efforts between private owners and state regulators in ensuring the sustainability of water sources in the region. As climate change continues to impact water availability, structures like Lamesa Ranch Dam No 1-64 will play a crucial role in adapting to and mitigating the effects of a changing climate on water resources.
Year Completed |
1964 |
Dam Length |
750 |
Dam Height |
10 |
River Or Stream |
TR-RIO GRANDE |
Primary Dam Type |
Earth |
Surface Area |
17 |
Drainage Area |
0.4 |
Nid Storage |
68 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Zacate Ck At Laredo
|
0cfs |
Rio Grande At Laredo
|
1760cfs |
Nueces Rv Nr Asherton
|
0cfs |
Nueces Rv At Cotulla
|
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.
Lamesa Ranch Dam No 1-64