Little Elm And Laterals Ws Scs Site 11 Dam Reservoir Report

Last Updated: December 5, 2025

The Little Elm and Laterals WS SCS Site 11 Dam, located in Collin County, Texas, serves as a crucial component in the management of the Walnut Fork River's water resources.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1971 by the USDA NRCS, this earth dam stands at a height of 21 feet and has a capacity of 716 acre-feet for flood risk reduction. The dam also serves purposes such as fire protection, stock or small fish pond, and recreation, making it a versatile and valuable asset for the local community.

Managed by the Texas Commission on Environmental Quality (TCEQ), the dam is state-regulated and undergoes regular inspections to ensure its structural integrity and functionality. Despite its hazard potential being labeled as "Not Available" and its condition assessment not yet rated, the risk assessment categorizes it as high (2). With no spillway, the dam features a single outlet gate and covers a surface area of 19 acres, all contributing to its essential role in water resource management in the region.

With a drainage area of 1.17 square miles, the Little Elm and Laterals WS SCS Site 11 Dam plays a vital role in the local water infrastructure, contributing to flood risk reduction and providing various benefits to the community. As an earth dam designed for multiple purposes and managed by state regulators, its presence ensures the safety and well-being of residents and the sustainable management of water resources in the area.

Year Completed

1971

Dam Length

1290

Dam Height

21

River Or Stream

WALNUT FORK

Primary Dam Type

Earth

Surface Area

19

Hydraulic Height

21

Drainage Area

1.17

Nid Storage

716

Structural Height

21

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

21
       
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.