Vw Martin Dam Reservoir Report

Last Updated: December 5, 2025

Vw Martin Dam, located in Lytle, Texas, on the TR-Atascosa River, is a private earth dam primarily used for Fish and Wildlife Pond purposes.


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Summary

Built in 1964 by USDA NRCS, the dam stands at a height of 14.1 feet and has a length of 730 feet, with a storage capacity of 60 acre-feet. The dam's spillway, with a width of 210 feet, is uncontrolled and has a maximum discharge of 2 cubic feet per second.

The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes state inspections, with the last assessment in November 2017 determining its condition as fair. With a moderate risk rating, the dam does not have an Emergency Action Plan prepared, but its hazard potential is not available. While it has two uncontrolled outlet gates, there are no associated locks with the structure.

Overall, Vw Martin Dam serves as an important water resource for the surrounding area, providing essential habitat for fish and wildlife while also offering recreational opportunities. Its presence contributes to the conservation efforts in the region and highlights the importance of maintaining and monitoring dams for both environmental and safety purposes.

Year Completed

1964

Dam Length

730

Dam Height

14.1

River Or Stream

TR-ATASCOSA RIVER

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

14.1

Drainage Area

3.8

Nid Storage

60

Structural Height

14.1

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

14
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.