Sister Grove Creek Ws Scs Site 11 Dam Reservoir Report

Last Updated: December 5, 2025

Sister Grove Creek WS SCS Site 11 Dam, located in Collin County, Texas, is a crucial structure designed by the USDA NRCS to mitigate flood risks along the Sister Grove Creek.


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Summary

Completed in 1953, this earth dam stands at a height of 28 feet and spans 2250 feet, providing a storage capacity of 1200 acre-feet. With a primary purpose of flood risk reduction, the dam also serves secondary purposes such as fire protection, stock watering, and recreation.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Sister Grove Creek WS SCS Site 11 Dam is an integral part of the water resource infrastructure in the region. Despite not having a spillway, the dam's structural integrity and hazard potential are rated as not available, indicating a need for further assessment. With a high risk classification, it is essential to ensure that proper risk management measures are in place to safeguard the surrounding communities and ecosystems from potential emergencies.

As a significant structure in the Fort Worth District, Sister Grove Creek WS SCS Site 11 Dam plays a vital role in water management and conservation efforts. With its strategic location and design, the dam serves as a testament to the collaborative efforts of various agencies in safeguarding the local watershed and enhancing resilience to climate-related challenges. For water resource and climate enthusiasts, this dam stands as a symbol of sustainable infrastructure development and the importance of proactive risk management in the face of evolving environmental conditions.

Year Completed

1953

Dam Length

2250

Dam Height

28

River Or Stream

TR-SISTER GROVE CREEK

Primary Dam Type

Earth

Surface Area

42

Hydraulic Height

28

Drainage Area

1.92

Nid Storage

1200

Structural Height

28

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

28
       
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.