Frio Trib Dam 1 Reservoir Report
Last Updated: December 5, 2025
Frio Trib Dam 1, located in Medina, Texas, was completed in 1970 and stands at a height of 20 feet.
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Summary
This earth dam, primarily used for water supply, holds a storage capacity of 170 acre-feet and covers a surface area of 12 acres. Despite lacking a spillway, the dam serves a crucial role in the management of the TR-Frio River.
With a high hazard potential and a risk assessment rating of 2, Frio Trib Dam 1 poses a significant challenge in terms of risk management. While the dam's condition assessment remains unrated, the absence of certain safety features like emergency action plans and inundation maps raise concerns about its preparedness for potential disasters. The dam's ownership by a private entity further complicates regulatory oversight and enforcement.
Given its importance for water supply in the region, Frio Trib Dam 1 serves as a critical infrastructure for the community. However, its high risk level underscores the need for comprehensive safety measures and regular inspections to ensure the protection of both the dam and the surrounding area from potential hazards. Enthusiasts of water resources and climate may find interest in the challenges and opportunities presented by the management of this essential structure.
Year Completed |
1970 |
Dam Length |
400 |
Dam Height |
20 |
River Or Stream |
TR-FRIO RIVER |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
20 |
Nid Storage |
170 |
Structural Height |
20 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Frio Trib Dam 1