Carr Lake Dam Reservoir Report

Last Updated: December 5, 2025

Carr Lake Dam, located in Grimes County, Texas, is a privately owned earth dam built in 1951 for the primary purpose of irrigation.


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Summary

Standing at a height of 25 feet and stretching over 1900 feet in length, the dam holds a maximum storage capacity of 1650 acre-feet of water with a normal storage level of 802 acre-feet. The dam is situated on TR-Bull Creek and is regulated by the Texas Commission on Environmental Quality (TCEQ).

Despite being last inspected in 1982, the dam has a moderate risk assessment rating and has not been rated for its current condition. The spillway type is uncontrolled with a width of 156 feet, and the dam features three uncontrolled outlet gates. The hazard potential of the dam is classified as "Not Available" and it has not been assigned a Dam Safety Action Classification (DSAC) as of now. The risk management measures for Carr Lake Dam are not specified in the available data.

For water resource and climate enthusiasts, Carr Lake Dam presents an intriguing case study of a privately owned irrigation dam in Texas. With its historic construction in 1951 and ongoing regulation by the TCEQ, the dam's moderate risk assessment rating and lack of recent inspections raise questions about its current condition and safety measures. Further research and monitoring may be needed to ensure the continued stability and functionality of this important water resource infrastructure.

Year Completed

1951

Dam Length

1900

Dam Height

25

River Or Stream

TR-BULL CREEK

Primary Dam Type

Earth

Surface Area

100

Hydraulic Height

25

Nid Storage

1650

Structural Height

25

Outlet Gates

Uncontrolled - 3

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

25
       
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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.