Cherry Valley Dam Reservoir Report

Last Updated: December 5, 2025

Cherry Valley Dam, located in Riverside County, California, was constructed in 1930 and impounds the Cherry Valley Creek.


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Summary

The dam is a concrete arch structure that stands over 110 feet tall and is approximately 700 feet long. It serves as a water storage facility for the surrounding area and is part of the Banning Bench Groundwater Basin. The dam primarily relies on surface flow from the San Gorgonio River and snowpack from the nearby San Bernardino Mountains for its water supply. The water stored in the reservoir is used for agricultural irrigation and municipal water supply for the nearby cities of Banning and Beaumont. Additionally, the Cherry Valley Dam and its reservoir offer recreational opportunities such as fishing and boating.

Reservoir Details

Storage 24hr Change None%
Percent of Normal None%
Minimum 163.0 acre-ft
2023-06-12
Maximum 4,510.0 acre-ft
2023-06-19
Average acre-ft
Nid_Height 315
Hydraulic_Height 302.5
Primary_Dam_Type Earth
Drainage_Area 114
Year_Completed 1956
Dam_Height 315
Surface_Area 1535
Hazard_Potential High
Nid_Storage 273500
River_Or_Stream Cherry Creek
Dam_Length 2630
       
Seasonal Comparison
Storage Levels
Pool Elevation Levels
Top Conserv Storage Levels
Inflow Levels

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.