Quail Valley Reservoir Report

Last Updated: December 5, 2025

Quail Valley, located in Lake Elsinore, California, is a privately owned dam with a primary purpose of water supply.


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Summary

Completed in 1959, this earth dam stands at 37 feet high and has a storage capacity of 103 acre-feet. With a drainage area of 1.6 square miles and a surface area of 10 acres, Quail Valley plays a vital role in providing water for the surrounding area.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Quail Valley is subject to regular state inspections and enforcement to ensure its structural integrity and safety. The dam has a high hazard potential and a satisfactory condition assessment as of September 2017. While the dam has a spillway type and width not specified in the data, it serves both recreational and water supply purposes for the community.

With its strategic location on the Tr San Jacinto Riv, Quail Valley is a critical infrastructure contributing to the water resource management in Riverside County. Climate and water resource enthusiasts would find this dam's design and operational details intriguing, showcasing the intersection of engineering, environmental stewardship, and public safety in sustaining water supplies for the region.

Year Completed

1959

Dam Length

275

Dam Height

37

River Or Stream

Tr San Jacinto Riv

Primary Dam Type

Earth

Surface Area

10

Hydraulic Height

31

Drainage Area

1.6

Nid Storage

103

Hazard Potential

High

Nid Height

37
       
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.