Olmitos And Garcias Crks Ws Scs Site 7 Dam Reservoir Report

Last Updated: December 19, 2025

Olmitos and Garcias Creeks WS SCS Site 7 Dam, located in Garciasville, Texas, is a crucial structure managed by the local government for flood risk reduction.


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Summary

Built in 1963 by the USDA NRCS, this earth dam stands at a height of 45 feet with a length of 1455 feet, providing a maximum storage capacity of 6569 acre-feet to control the flow of Olmitas Creek. The dam serves multiple purposes including fire protection, stock and fish ponds, wildlife habitat, and flood risk reduction.

The dam features an uncontrolled spillway with a width of 203 feet and two uncontrolled outlet gates. Despite being in satisfactory condition as of the last assessment in July 2017, the dam underwent structural modifications in 2016 to ensure its continued effectiveness. With a drainage area of 23.1 square miles and a maximum discharge capacity of 20254 cubic feet per second, the dam plays a critical role in managing water flow and mitigating flood risks in the area.

Although the hazard potential of the dam is not available, the risk assessment categorizes it as moderate with a rating of 3. Regular inspections and maintenance ensure the dam's functionality and safety, with an inspection frequency of 5 years. With its strategic location and design, the Olmitos and Garcias Creeks WS SCS Site 7 Dam is a vital infrastructure contributing to water resource management and climate resilience in the region.

Years Modified

2016 - Structural

Year Completed

1963

Dam Length

1455

Dam Height

45

River Or Stream

OLMITAS CREEK

Primary Dam Type

Earth

Surface Area

41

Hydraulic Height

45

Drainage Area

23.1

Nid Storage

6569

Structural Height

45

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Rock, Soil

Nid Height

45
       
Seasonal Comparison

Weather Forecast

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Nearby Streamflow Levels

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.