Calaveras Creek Ws Scs Site 8 Dam Reservoir Report

Last Updated: December 5, 2025

The Calaveras Creek WS SCS Site 8 Dam, located in Bexar County, Texas, stands as a crucial structure for flood risk reduction along the TR-CHUPADERAS CREEK.


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Summary

Built in 1954 by the USDA NRCS, this earth dam is designed to withstand hydraulic pressures with a height of 27 feet and a length of 1366 feet. With a normal storage capacity of 198 acre-feet and a maximum discharge of 7518 cubic feet per second, the dam serves as a vital resource for managing water flow in the region.

Managed by local government authorities and regulated by the Texas Commission on Environmental Quality (TCEQ), the Calaveras Creek WS SCS Site 8 Dam has been inspected regularly to ensure its structural integrity. The dam features outlet gates for controlled water release and has undergone modifications in 2013. Despite its age, the dam continues to play a critical role in safeguarding the surrounding area from the impacts of flooding, showcasing the importance of sustainable water resource management practices in the face of changing climate patterns.

As a part of the Galveston District, the Calaveras Creek WS SCS Site 8 Dam serves as a testament to the collaborative efforts between federal and local agencies in safeguarding communities from the risks posed by extreme weather events. With a focus on flood risk reduction, this dam stands as a key infrastructure piece that demonstrates the ongoing commitment to resilience and sustainability in water resource management.

Years Modified

2013 - Other

Year Completed

1954

Dam Length

1366

Dam Height

27

River Or Stream

TR-CHUPADERAS CREEK

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

27

Drainage Area

2.4

Nid Storage

1413

Structural Height

27

Outlet Gates

Other Controlled - 1, Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Soil

Nid Height

27
       
Seasonal Comparison

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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.