West Losa Tank Dam Reservoir Report
Last Updated: December 6, 2025
West Losa Tank Dam, located in Webb County, Texas, is a private-owned earth dam with a primary purpose of "Other".
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Summary
The dam stands at a height of 13 feet and has a length of 1000 feet, providing a storage capacity of 220 acre-feet. Despite its relatively small size, the dam plays a crucial role in water resource management in the region, specifically in the drainage area of the Rio Grande river.
While the dam does not have a spillway and is not regulated by the state, it is equipped with one outlet gate for water control. The risk assessment for West Losa Tank Dam indicates a high risk level, although the condition assessment is not rated. With its strategic location in a high-risk area, climate enthusiasts and water resource experts may find the dam's design and management measures of particular interest. Further research and monitoring may be necessary to ensure the safety and efficiency of this essential water infrastructure in the face of changing climate conditions.
Dam Length |
1000 |
Dam Height |
13 |
River Or Stream |
TR-RIO GRANDE |
Primary Dam Type |
Earth |
Surface Area |
14 |
Nid Storage |
220 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nueces Rv Nr Asherton
|
0cfs |
Nueces Rv At Cotulla
|
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.
West Losa Tank Dam