Dos Pueblos Reservoir Report

Last Updated: December 5, 2025

Dos Pueblos is a privately owned dam located in Santa Barbara, California, specifically in the city of Napels.


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Summary

Built in 1946, this earth dam stands at a height of 78 feet and has a hydraulic height of 64 feet, serving primarily for water supply purposes, including irrigation. With a storage capacity of 300 acre-feet and covering a surface area of 16 acres, Dos Pueblos plays a crucial role in managing water resources in the region.

Despite its satisfactory condition assessment as of September 2017, Dos Pueblos has been classified with a high hazard potential, emphasizing the importance of regular inspections and proper maintenance. The dam is regulated by the California Department of Water Resources' Safety of Dams division, with state jurisdiction and enforcement in place to ensure its safety and compliance with regulations. With a history of periodic inspections and a last assessment conducted in April 2020, Dos Pueblos is equipped with emergency action plans and meets guidelines for risk management.

Located on the Tr Dos Pueblos stream and under the jurisdiction of the Los Angeles District of the US Army Corps of Engineers, Dos Pueblos remains a vital infrastructure for water resource management in the region. With its role in irrigation and water supply, this dam highlights the intersection of water resource management and climate resilience, showcasing the importance of maintaining and monitoring critical infrastructure to ensure the safety and sustainability of water resources in California.

Year Completed

1946

Dam Length

448

Dam Height

78

River Or Stream

Tr Dos Pueblos

Primary Dam Type

Earth

Surface Area

16

Hydraulic Height

64

Drainage Area

0.89

Nid Storage

300

Hazard Potential

High

Nid Height

78
       
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.