Reid Reservoir Report

Last Updated: December 5, 2025

Reid Dam, located in Jesus Maria, California, plays a crucial role in water resource management as a private facility primarily used for water supply.


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Summary

Completed in 1969, this earth dam stands at a height of 32 feet and has a storage capacity of 70 acre-feet, serving irrigation, recreation, and water supply purposes. Situated on Esperanza Creek in Calaveras County, Reid Dam is regulated by the California Department of Water Resources, ensuring its safe operation and compliance with state regulations.

Despite its low hazard potential and satisfactory condition assessment, Reid Dam undergoes regular inspections to maintain its safety standards. With a drainage area of 1.98 square miles and a surface area of 7 acres, this dam contributes to the local water supply while offering recreational opportunities. Managed by a private owner, Reid Dam is a vital infrastructure supporting the water needs of the surrounding community in California.

As part of the water infrastructure network in the area, Reid Dam provides a reliable source of water for irrigation and other essential purposes. With its strategic location and functional design, this dam contributes to the sustainable management of water resources in the region. As water resource and climate enthusiasts, understanding the significance of structures like Reid Dam is essential for ensuring the resilience and efficiency of water supply systems in the face of changing environmental conditions.

Year Completed

1969

Dam Length

720

Dam Height

32

River Or Stream

Esperanza Creek

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

27

Drainage Area

1.98

Nid Storage

70

Hazard Potential

Low

Nid Height

32
       
Seasonal Comparison

Weather Forecast

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.