Spurlock Lake Dam Reservoir Report

Last Updated: December 5, 2025

Spurlock Lake Dam, located in Hillister, Texas, is a private earth dam constructed in 1958 primarily for irrigation purposes.


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Summary

The dam stands at a height of 11 feet and has a maximum storage capacity of 100 acre-feet, with a normal storage level of 80 acre-feet. Despite its modest size, the dam plays a crucial role in supporting agricultural activities in the region by providing water for irrigation.

While Spurlock Lake Dam does not have a spillway or associated locks, it is equipped with one outlet gate for water release. Although the dam's hazard potential is listed as "Not Available," it is categorized as having a high risk level (2). The condition assessment of the dam is currently "Not Rated," indicating a need for further evaluation to ensure its safety and stability. With its location on Spurlock Branch and under the jurisdiction of the Fort Worth District, this dam serves as a vital resource for water management in the area.

Overall, Spurlock Lake Dam stands as a testament to the importance of water resource management and climate resilience. As climate change continues to impact water availability and quality, the maintenance and monitoring of dams like Spurlock Lake Dam are essential to safeguarding water resources for future generations. With ongoing state inspection and permitting processes in place, this dam plays a crucial role in supporting agricultural activities and ensuring water security in the region.

Year Completed

1958

Dam Height

11

River Or Stream

SPURLOCK BRANCH

Primary Dam Type

Earth

Hydraulic Height

11

Nid Storage

100

Structural Height

12

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

12
       
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.