Ar Kuykendall Lake Dam Reservoir Report
Last Updated: December 5, 2025
Ar Kuykendall Lake Dam, located in McMullen County, Texas, was completed in 1968 and serves the primary purpose of water supply.
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Summary
The dam is an earth type structure with a height of 14 feet and a length of 600 feet, creating a reservoir with a storage capacity of 224 acre-feet. Although the dam does not have a spillway, it is equipped with one outlet gate for water release.
Despite not being regulated by the state, the dam is subject to regular inspections and has been deemed to have a high risk potential. The condition of the dam is currently not rated, but emergency action plans and risk management measures are in place. The surrounding Rockaway Creek watershed benefits from the water stored in the reservoir, making Ar Kuykendall Lake Dam a crucial infrastructure for water resource management in the region.
Year Completed |
1968 |
Dam Length |
600 |
Dam Height |
14 |
River Or Stream |
ROCKAWAY CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
14 |
Nid Storage |
224 |
Structural Height |
14 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Frio Rv At Tilden
|
0cfs |
San Miguel Ck Nr Tilden
|
0cfs |
Nueces Rv Nr Tilden
|
0cfs |
Atascosa Rv At Whitsett
|
0cfs |
Choke Canyon Res Owc Nr Three Rivers
|
33cfs |
Frio Rv Nr Derby
|
0cfs |
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.
Ar Kuykendall Lake Dam