Dyer Lake Dam Reservoir Report
Last Updated: December 5, 2025
Dyer Lake Dam, located in San Saba, Texas, is a private Earth dam completed in 1979 with a primary purpose of providing fire protection, stock, or a small fish pond.
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Summary
Standing at a height of 19 feet and a length of 835 feet, this dam has a storage capacity of 152 acre-feet, with a normal storage level of 76 acre-feet. It is situated on TR-HORSE CREEK and is under the jurisdiction of the Fort Worth District of the US Army Corps of Engineers.
Despite being a privately owned structure, Dyer Lake Dam is subject to state permitting and inspection requirements. While it does not have a spillway, the dam is equipped with one outlet gate. The risk assessment for this dam indicates a high risk level (2), although specific risk management measures are not listed in the available data. The condition assessment is noted as "Not Rated," suggesting the need for further evaluation to determine the structural integrity and safety of the dam.
For water resource and climate enthusiasts, Dyer Lake Dam presents an interesting case study in the management of small-scale water infrastructure in Texas. With its unique design features and primary purposes, the dam serves as a vital resource for fire protection and agricultural needs in the local area. The risk assessment highlights the importance of ongoing monitoring and maintenance to ensure the safety and functionality of the dam for both human and ecological purposes.
Year Completed |
1979 |
Dam Length |
835 |
Dam Height |
19 |
River Or Stream |
TR-HORSE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
19 |
Nid Storage |
152 |
Structural Height |
19 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
San Saba Rv At San Saba
|
140cfs |
Colorado Rv Nr San Saba
|
211cfs |
Pecan Bayou Nr Mullin
|
2cfs |
Llano Rv At Llano
|
263cfs |
Lampasas Rv Nr Kempner
|
33cfs |
San Saba Rv Nr Brady
|
3cfs |
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.
Dyer Lake Dam