Wood Ranch Reservoir Report

Last Updated: December 5, 2025

Wood Ranch, also known as Bard Lake, is a public utility water supply dam located in Ventura County, California.


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Summary

Completed in 1965, this earth-fill dam stands at a height of 146 feet and has a storage capacity of 11,000 acre-feet. Situated on Tr Arroyo Simi, this reservoir covers a surface area of 230 acres and serves as a crucial source of water for the surrounding area.

Managed by the California Department of Water Resources, Wood Ranch is regulated and inspected to ensure its safety and functionality. With a high hazard potential but a satisfactory condition assessment, this dam plays a vital role in water supply for the city of Simi and the surrounding communities. As a key component of the local water infrastructure, Wood Ranch serves as a reminder of the importance of sustainable water resource management in the face of climate change and increasing water scarcity.

Maintaining Wood Ranch and other critical water infrastructure is essential to ensuring water security in California. With proper regulation, inspection, and emergency preparedness measures in place, Wood Ranch continues to provide a reliable source of water for the region, highlighting the importance of responsible stewardship of our water resources in the face of a changing climate.

Year Completed

1965

Dam Length

1020

Dam Height

146

River Or Stream

Tr Arroyo Simi

Primary Dam Type

Earth

Surface Area

230

Hydraulic Height

140

Drainage Area

0.97

Nid Storage

11000

Hazard Potential

High

Nid Height

146
       
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.