Triple R Ranch Lake Dam Reservoir Report

Last Updated: December 5, 2025

Triple R Ranch Lake Dam, located in Denton, Texas, is a privately owned earth dam completed in 1960 with a primary purpose of recreation.


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Summary

Standing at a height of 22 feet and a length of 660 feet, this dam holds a maximum storage capacity of 176 acre-feet, with a normal storage volume of 56 acre-feet. The dam overlooks the TR-Grapevine Reservoir and is regulated by the Texas Commission on Environmental Quality (TCEQ).

Despite not having a spillway, Triple R Ranch Lake Dam is classified as having a high risk level (2) due to its condition assessment not being rated. The dam has not been inspected recently, and its emergency action plan and risk management measures are not readily available. While it poses a potential hazard, the dam provides a recreational oasis for water resource and climate enthusiasts in the region to enjoy various outdoor activities in a scenic setting. As it continues to be monitored and assessed, its role in water management and conservation remains vital in the local community.

Year Completed

1960

Dam Length

660

Dam Height

22

River Or Stream

TR-GRAPEVINE RESERVOIR

Primary Dam Type

Earth

Surface Area

10

Hydraulic Height

22

Nid Storage

176

Structural Height

22

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

22
       
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.