Groclose Lake Dam Reservoir Report
Last Updated: December 5, 2025
Groclose Lake Dam, located in Cottle County, Texas, was completed in 1943 and serves as a vital water supply structure in the region.
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Summary
The dam stands at a height of 40 feet and has a length of 250 feet, with a storage capacity of 177 acre-feet. The primary purpose of Groclose Lake Dam is to provide water for local communities and agriculture, making it a key player in managing water resources in the area.
Despite its age, Groclose Lake Dam has not been rated for its condition and is classified as having a high risk potential. The dam is of Earth type with a buttress core, and no spillway is present. While the dam is privately owned, it falls under the state regulatory jurisdiction for permitting and inspection. The surrounding area, including the TR-Devils Creek, benefits greatly from the water stored by Groclose Lake Dam, showcasing its importance in maintaining water security in the region.
As a critical water supply infrastructure in Texas, Groclose Lake Dam plays a significant role in water management and climate resilience efforts. Its construction in the early 1940s has provided essential water resources for the surrounding communities and agricultural activities. With a high risk potential and no official condition assessment, ongoing monitoring and maintenance are crucial to ensure the continued safety and functionality of Groclose Lake Dam for years to come.
Year Completed |
1943 |
Dam Length |
250 |
Dam Height |
40 |
River Or Stream |
TR-DEVILS CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
40 |
Nid Storage |
177 |
Structural Height |
40 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Groclose Lake Dam