Quatralvo Tank Dam Reservoir Report
Nearby: Apache 2 Tank Dam Middle Tordillo Dam
Last Updated: December 5, 2025
Quatralvo Tank Dam, located in Webb, Texas, is a private earth dam with a primary purpose designated as "Other." This dam stands at a height of 15 feet and has a storage capacity of 90 acre-feet, with a normal storage level of 34 acre-feet.
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Summary
Despite its relatively small size, Quatralvo Tank Dam plays a crucial role in water resource management in the region, particularly for irrigation and water supply purposes.
Managed by a private entity, the dam is not state-regulated but does undergo periodic inspections and has a hazard potential that is currently labeled as "Not Available." The risk assessment for this dam is categorized as high, indicating the importance of regular monitoring and maintenance to ensure its structural integrity and safety. With no spillway and a single outlet gate, the design and construction details of Quatralvo Tank Dam reflect its efficient functionality for water storage and management along the TR-Rio Grande river.
As climate change continues to impact water resources and availability, the role of structures like Quatralvo Tank Dam becomes increasingly significant in maintaining a sustainable water supply for the surrounding communities. With its strategic location and storage capacity, this dam represents a vital component of the region's water infrastructure, highlighting the importance of ongoing monitoring and risk management to safeguard its operation and functionality for the future.
Dam Height |
15 |
River Or Stream |
TR-RIO GRANDE |
Primary Dam Type |
Earth |
Surface Area |
9 |
Nid Storage |
90 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nueces Rv Nr Asherton
|
0cfs |
Zacate Ck At Laredo
|
0cfs |
Rio Grande At Laredo
|
1760cfs |
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.
Quatralvo Tank Dam