North Trinity Laterals Ws Scs Site 3 Dam Reservoir Report

Last Updated: December 5, 2025

The North Trinity Laterals WS SCS Site 3 Dam in Dallas, Texas, is a crucial structure designed by the USDA NRCS to reduce flood risk along the TR-PARSONS SLOUGH.


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Summary

Completed in 1969, this earth dam stands at 27 feet high and spans 575 feet in length, providing a storage capacity of 176 acre-feet for floodwaters. Despite its age, the dam is state-regulated, inspected, and enforced by the Texas Commission on Environmental Quality, ensuring its structural integrity and safety.

With a primary purpose of flood risk reduction, the North Trinity Laterals WS SCS Site 3 Dam plays a vital role in protecting the surrounding area from potential inundation during heavy rainfall events. Its association with the Natural Resources Conservation Service underscores its importance in water resource management and climate resilience efforts. Although categorized as having a high risk level, the dam's condition is currently not rated, highlighting the need for ongoing monitoring and maintenance to uphold its effectiveness in safeguarding the community.

As a local government-owned structure, the North Trinity Laterals WS SCS Site 3 Dam serves as a critical infrastructure asset in the region, demonstrating the collaborative efforts between federal, state, and local agencies in managing water resources and mitigating flood hazards. Its strategic location and design features contribute to the overall flood risk reduction strategy for the area, emphasizing the importance of proactive measures in adapting to changing climatic conditions and ensuring the resilience of water infrastructure in the face of extreme weather events.

Year Completed

1969

Dam Length

575

Dam Height

27

River Or Stream

TR-PARSONS SLOUGH

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

27

Drainage Area

0.62

Nid Storage

176

Structural Height

27

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

27
       
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.