Davis Creek Reservoir Report

Last Updated: December 5, 2025

Davis Creek is a private dam located in Rumsey, California, with a primary purpose of hydroelectric power generation.


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Summary

Completed in 1985, this earth dam stands at a height of 105 feet and has a hydraulic height of 88.5 feet. With a storage capacity of 6079 acre-feet and a surface area of 190 acres, Davis Creek plays a crucial role in providing water supply for the region.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Davis Creek is regulated, permitted, inspected, and enforced by the state agency. The dam has a high hazard potential but is currently in satisfactory condition, as assessed in September 2017. Despite its age, Davis Creek continues to serve as a vital infrastructure for water resource management in the Yolo County area.

Situated in the San Francisco District, Davis Creek not only contributes to hydroelectric power generation but also serves purposes related to tailings and water supply. With its strategic location along the Davis Creek river, this dam stands as a testament to responsible water resource management and climate resilience efforts in California.

Year Completed

1985

Dam Length

953

Dam Height

105

River Or Stream

Davis Creek

Primary Dam Type

Earth

Surface Area

190

Hydraulic Height

88.5

Drainage Area

10.2

Nid Storage

6079

Hazard Potential

High

Nid Height

105
       
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.