Barton Reservoir Report

Last Updated: December 5, 2025

Located in Grenada, California, the Barton (or Barton Lake) dam is a significant part of the local water resource infrastructure.


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Summary

Built in 1964, this earth dam stands at a height of 13 feet with a hydraulic height of 8 feet, serving primarily for flood risk reduction. With a storage capacity of 160 acre-feet and a surface area of 52 acres, the dam plays a crucial role in irrigation, recreation, and water supply in the region.

Managed by private owners, Barton is regulated and inspected by the California Department of Water Resources, ensuring its safety and compliance with state regulations. The dam has a satisfactory condition assessment as of September 2017 and is classified as having a significant hazard potential. The last inspection in February 2020 confirmed its structural integrity, indicating that it continues to serve its purpose effectively in safeguarding the surrounding areas from potential flooding.

Situated on the White Slough river, Barton dam remains an essential component of the local water management system, contributing to the overall resilience of the area against natural disasters. With its strategic location and flood risk reduction capabilities, Barton underscores the importance of sustainable water resource management and climate resilience in the face of changing environmental conditions.

Year Completed

1964

Dam Length

570

Dam Height

13

River Or Stream

White Slough

Primary Dam Type

Earth

Surface Area

52

Hydraulic Height

8

Drainage Area

3.2

Nid Storage

160

Hazard Potential

Significant

Nid Height

13
       
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.