Jones Ranch Reservoir Report

Last Updated: December 25, 2025

Jones Ranch is a privately owned dam located in Burnt Ranch, California, along the Trinity River.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1980, this earth dam stands at a height of 36 feet and has a storage capacity of 58 acre-feet. The primary purpose of Jones Ranch is to provide water supply, with additional uses for recreation.

The dam is regulated by the California Department of Water Resources and is subject to regular inspections to ensure its safety and functionality. Classified as having a significant hazard potential, Jones Ranch has been assessed as satisfactory in condition as of September 2017. The dam's last inspection was conducted in May 2020, with a recommended inspection frequency of once per year.

Enthusiasts of water resources and climate will find Jones Ranch to be an intriguing structure that plays a crucial role in providing water supply in the Trinity County region of California. Its location along the Trinity River and its impact on local water resources make it a significant piece of infrastructure to monitor and study in the context of climate change and water management practices.

Year Completed

1980

Dam Length

350

Dam Height

36

River Or Stream

Tr Trinity River

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

30.5

Drainage Area

0.72

Nid Storage

58

Hazard Potential

Significant

Nid Height

36
       
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.
View more

Nearby Reservoirs