Primos Lake Dam Reservoir Report
Nearby: Tx No Name No 5 Dam Collins Lake Dam
Last Updated: December 5, 2025
Primos Lake Dam, located in Medina, Texas, is a privately-owned earth dam that was completed in 1970 for the primary purpose of recreation.
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Summary
The dam stands at a height of 21 feet and has a length of 700 feet, creating a reservoir with a maximum storage capacity of 340 acre-feet. With a normal storage capacity of 132 acre-feet and a surface area of 22 acres, the dam is situated on Live Oak Creek in the Galveston District.
Despite its recreational focus, Primos Lake Dam has a high hazard potential rating of 2 and is not currently rated for condition assessment. The dam does not have a spillway, locks, or associated structures, and it lacks sufficient drainage area and maximum discharge capacity data. However, the dam has undergone state permitting and inspection processes, ensuring its safety and compliance with regulatory standards. As a significant feature in the area, Primos Lake Dam serves as an essential resource for water recreation enthusiasts and climate researchers alike.
Year Completed |
1970 |
Dam Length |
700 |
Dam Height |
21 |
River Or Stream |
LIVE OAK CREEK |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
21 |
Nid Storage |
340 |
Structural Height |
21 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
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.
Primos Lake Dam