Galvan No 3 Pit Dam Reservoir Report

Last Updated: December 6, 2025

Galvan No 3 Pit Dam, located in Webb County, Texas, is a privately owned earth dam standing at a height of 9 feet and stretching across a length of 3700 feet.


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Summary

This dam holds a storage capacity of 60 acre-feet and covers a surface area of 6.3 acres, serving as a vital water resource in the area. Situated along the Santa Isabel Creek, this dam plays a crucial role in managing water flow and storage in the region, contributing to the overall water management system.

Despite its importance, Galvan No 3 Pit Dam is currently assessed as "Not Rated" in terms of its condition, with a high hazard potential noted. The dam lacks a spillway and has one outlet gate, raising concerns about its capacity to handle potential flood events or emergencies. With no recent inspection or maintenance records available, there is a need for enhanced risk management measures and regular assessments to ensure the safety and effectiveness of this essential water infrastructure. For water resource and climate enthusiasts, monitoring and addressing the risks associated with the Galvan No 3 Pit Dam can help safeguard water resources and support sustainable water management practices in the region.

Dam Length

3700

Dam Height

9

River Or Stream

SANTA ISABEL CREEK

Primary Dam Type

Earth

Surface Area

6.3

Hydraulic Height

9

Nid Storage

60

Structural Height

9

Outlet Gates

None - 1

Hazard Potential

Not Available

Nid Height

9
       
Seasonal Comparison

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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.