Martinez Creek Ws Scs Site 4 Dam Reservoir Report

Last Updated: December 5, 2025

Martinez Creek WS SCS Site 4 Dam, located in Bexar County, Texas, is a vital structure designed by USDA NRCS for flood risk reduction along the TR-Salitrillo Creek.


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Summary

Completed in 1964, this earth dam stands at a height of 36 feet with a hydraulic height of 35 feet and a structural height of 44.6 feet. With a storage capacity of 1632 acre-feet, the dam serves to protect the surrounding area from potential flooding events, boasting a spillway width of 204 feet for effective water discharge.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Martinez Creek WS SCS Site 4 Dam has undergone inspections every five years, with the last assessment conducted in January 2016. The dam's outlet gates include a slide gate and two uncontrolled gates, ensuring efficient water release mechanisms. Despite being deemed as having a moderate risk level, the dam's condition assessment remains unrated, indicating a need for further evaluation and potential risk management measures in the future. With its strategic location and functional design, Martinez Creek WS SCS Site 4 Dam stands as a crucial asset in safeguarding the community from the impacts of extreme weather events and water resource challenges.

Years Modified

2007 - Other

Year Completed

1964

Dam Length

2132

Dam Height

36

River Or Stream

TR-SALITRILLO CREEK

Primary Dam Type

Earth

Surface Area

19

Hydraulic Height

35

Drainage Area

2.8

Nid Storage

1632

Structural Height

44.6

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

45
       
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.