Rowlett Creek Ws Scs Site 4 Dam Reservoir Report

Last Updated: December 5, 2025

Rowlett Creek WS SCS Site 4 Dam, located in Collin County, Texas, serves as a crucial flood risk reduction structure along Muddy Creek.


°F

°F

mph

Wind

%

Humidity

Summary

Constructed in 1956 by the USDA NRCS, this earthen dam stands at a height of 43 feet and spans 4100 feet, providing a storage capacity of 6500 acre-feet. The dam serves multiple purposes including fire protection, stock and small fish pond maintenance, flood risk reduction, and recreation.

Managed by the TCEQ, the dam is inspected every five years and was last assessed as being in fair condition in August 2015. With a moderate risk rating, the dam features an uncontrolled spillway and outlet gates for efficient water release. Despite its age, the dam continues to play a vital role in protecting surrounding areas from flooding and maintaining water resources for various purposes. Enthusiasts of water resource and climate management will find Rowlett Creek WS SCS Site 4 Dam to be a noteworthy example of infrastructure designed to balance flood control with ecological and recreational benefits.

Year Completed

1956

Dam Length

4100

Dam Height

43

River Or Stream

MUDDY CREEK

Primary Dam Type

Earth

Surface Area

140

Hydraulic Height

43

Drainage Area

11.39

Nid Storage

6500

Structural Height

43

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 3

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

43
       
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.