Turner Lake Dam Reservoir Report

Last Updated: December 5, 2025

Turner Lake Dam, located in Denton, Texas, is a privately owned structure that serves primarily for recreational purposes.


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Summary

The dam, completed in 1960, stands at a height of 27 feet and has a length of 1200 feet, creating a storage capacity of 680 acre-feet. It is an earth dam with a buttress core, built on a foundation of rock and soil along Marshal Branch.

The dam has an uncontrolled spillway with a width of 355 feet, and is equipped with four outlet gates. Despite being assessed as in fair condition as of June 2018, the dam has a moderate risk level (3) and is inspected every 5 years. The hazard potential of the dam is not available, but it is under state regulation and enforcement by the Texas Commission on Environmental Quality (TCEQ).

Turner Lake Dam, situated in a picturesque location with a surface area of 40 acres, plays an important role in the local community for recreational activities. With its historical significance dating back to 1960, this dam serves as a vital water resource for the area, while also providing a scenic spot for visitors to enjoy nature and water-based activities.

Years Modified

1992 - Other

Year Completed

1960

Dam Length

1200

Dam Height

27

River Or Stream

MARSHAL BRANCH

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

27

Drainage Area

9.78

Nid Storage

680

Structural Height

27

Outlet Gates

Uncontrolled - 4

Hazard Potential

Not Available

Foundations

Rock, Soil

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.