Sister Grove Creek Ws Scs Site 25 Dam Reservoir Report

Last Updated: December 5, 2025

Sister Grove Creek WS SCS Site 25 Dam in Grayson, Texas, stands as a testament to effective flood risk reduction measures.


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Summary

Built in 1959 by USDA NRCS, this Earth dam boasts a height of 45 feet and a length of 1350 feet, providing essential protection for the surrounding area. With a storage capacity of 406 acre-feet and a drainage area of 0.74 square miles, this dam plays a crucial role in managing water resources in the region.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Sister Grove Creek WS SCS Site 25 Dam has a primary purpose of flood risk reduction. Despite its high hazard potential, the dam has not been rated for its condition assessment, highlighting the need for ongoing monitoring and maintenance. The risk assessment categorizes this dam as high risk, indicating the importance of implementing effective risk management measures to ensure the safety and integrity of the structure.

Located along the TR-Sister Grove Creek, this dam serves as a key infrastructure for water resource management in the area. With no spillway and minimal associated structures, the focus remains on its primary function of flood risk reduction. As water resource and climate enthusiasts, understanding the significance of dams like Sister Grove Creek WS SCS Site 25 Dam is vital in ensuring sustainable water management practices for the future.

Year Completed

1959

Dam Length

1350

Dam Height

45

River Or Stream

TR-SISTER GROVE CREEK

Primary Dam Type

Earth

Surface Area

11.5

Hydraulic Height

45

Drainage Area

0.74

Nid Storage

406

Structural Height

45

Outlet Gates

None - 1

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.