Turkey Ranch Reservoir Report

Last Updated: December 5, 2025

Turkey Ranch is a privately owned earth dam located in Pope Valley, California, along the Tr Pope Creek.


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Summary

Completed in 1999, this dam primarily serves as a water supply source for irrigation purposes, with a storage capacity of 240 acre-feet. With a height of 35 feet and a length of 3035 feet, Turkey Ranch plays a crucial role in water management in the region, especially in the Napa County.

Managed and regulated by the California Department of Water Resources and Safety of Dams, Turkey Ranch is subject to regular inspections to ensure its structural integrity and safety. Despite being classified as having a high hazard potential, the dam's condition assessment in 2017 deemed it to be satisfactory. With a drainage area of 0.02 square miles, Turkey Ranch covers a surface area of 12 acres and represents an important piece of infrastructure in the local water resource and climate conservation efforts.

The dam's location, design, and purpose make it a key player in the water supply system of the region, providing essential resources for agricultural activities and contributing to the overall water management efforts in California. As climate change continues to impact water resources, structures like Turkey Ranch become increasingly important for ensuring sustainable and reliable access to water for both present and future generations.

Year Completed

1999

Dam Length

3035

Dam Height

35

River Or Stream

Tr Pope Creek

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

31

Drainage Area

0.02

Nid Storage

240

Hazard Potential

High

Nid Height

35
       
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.