74 Ranch Dam No 4 Reservoir Report
Nearby: Sediment Pond 19b 74 Ranch Dam No 1
Last Updated: December 5, 2025
74 Ranch Dam No 4, located in Atascosa, Texas, is a private earth dam that was completed in 1968 for the primary purpose of water supply.
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Summary
Standing at a height of 15 feet and with a length of 1000 feet, this dam has a storage capacity of 162 acre-feet and a surface area of 20 acres. Situated on the TR-Metate Creek, this dam plays a crucial role in the local water resource management system.
Despite being privately owned, 74 Ranch Dam No 4 is regulated by the state of Texas with permitting and inspection requirements in place. While the dam is currently rated as "Not Rated" in terms of condition assessment, it has a high risk potential and is classified as a Hazard Potential "Not Available". This information highlights the importance of regular monitoring and maintenance to ensure the safety and functionality of the dam for both water supply and environmental protection purposes.
With a prominent location in the Galveston District and under the jurisdiction of the state of Texas, 74 Ranch Dam No 4 serves as a significant infrastructure for water supply in the region. Its design and construction details, along with storage capacity and potential risks, make it an essential element for water resource and climate enthusiasts to monitor and assess in the broader context of watershed management and climate change adaptation strategies.
Year Completed |
1968 |
Dam Length |
1000 |
Dam Height |
15 |
River Or Stream |
TR-METATE CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
15 |
Nid Storage |
162 |
Structural Height |
15 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Atascosa Rv At Whitsett
|
0cfs |
Atascosa Rv Nr Mccoy
|
1cfs |
San Miguel Ck Nr Tilden
|
0cfs |
Choke Canyon Res Owc Nr Three Rivers
|
33cfs |
Frio Rv At Tilden
|
0cfs |
Nueces Rv Nr Three Rivers
|
29cfs |
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.
74 Ranch Dam No 4