Hamilton Lake Dam No 1 Reservoir Report
Last Updated: December 6, 2025
Hamilton Lake Dam No 1, located in Dimmit, Texas, was completed in 1967 and serves as a crucial water supply source for the region.
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Summary
This private earth dam stands at 18 feet high and stretches 550 feet in length, with a storage capacity of 250 acre-feet. The primary purpose of the dam is to ensure a reliable water source for the surrounding area, particularly during times of drought or increased water demand.
Despite being privately owned, the dam is subject to state permitting and inspection requirements, ensuring its structural integrity and compliance with safety regulations. With a high risk assessment rating of 2, it is important for ongoing risk management measures to be implemented to mitigate potential hazards. With no spillway and a lack of information on hazard potential or condition assessment, it is essential for the dam's owners to prioritize safety and maintenance to prevent any potential risks to the surrounding community and environment.
While the dam may not have a high level of federal oversight, its significance as a water supply source cannot be understated. As climate change continues to impact water resources, dams like Hamilton Lake Dam No 1 play a crucial role in ensuring water security for communities in Texas. It is imperative that the owners of the dam remain vigilant in their maintenance efforts and risk management strategies to safeguard this vital resource for the future.
Year Completed |
1967 |
Dam Length |
550 |
Dam Height |
18 |
River Or Stream |
BOTELLA CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
18 |
Nid Storage |
250 |
Structural Height |
18 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nueces Rv Nr Asherton
|
0cfs |
Nueces Rv At Cotulla
|
0cfs |
Nueces Rv Bl Uvalde
|
1cfs |
Leona Rv Nr Uvalde
|
0cfs |
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.
Hamilton Lake Dam No 1