Cedar Creek Ws Scs Site 1a Dam Reservoir Report

Last Updated: December 5, 2025

Cedar Creek WS SCS Site 1a Dam, located in Rockwall, Texas, is a crucial structure designed by the USDA NRCS to reduce flood risks along Brushy Creek.


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Summary

Completed in 1971, this earth dam stands at a height of 27 feet and has a length of 2125 feet, providing a storage capacity of 942 acre-feet. Not only does it serve the primary purpose of flood risk reduction, but it also benefits the community by offering fire protection, stock and small fish pond opportunities, and recreational activities.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Cedar Creek WS SCS Site 1a Dam has undergone inspections every five years. Although its condition was assessed as unsatisfactory in April 2021, there are no hazard potential ratings available. Despite this, the dam poses a moderate risk (3) according to the risk assessment. With uncontrolled spillways and two outlet gates, this dam plays a crucial role in water resource management and climate resilience in the region.

Year Completed

1971

Dam Length

2125

Dam Height

27

River Or Stream

BRUSHY CREEK

Primary Dam Type

Earth

Surface Area

32

Hydraulic Height

27

Drainage Area

1.72

Nid Storage

942

Structural Height

27

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

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.