Weber Reservoir Report

Last Updated: December 5, 2025

Weber Dam, located in El Dorado, California, is a multi-arch dam completed in 1924 for water supply purposes, specifically for irrigation and water supply.


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Summary

The dam stands at a height of 92 feet and has a hydraulic height of 87.9 feet, with a storage capacity of 1100 acre-feet and a surface area of 41 acres. The dam is situated on the Nfk Weber Creek and is regulated by the California Department of Water Resources (DWR) for safety and inspection.

The high hazard potential of Weber Dam is closely monitored, with regular inspections conducted to ensure its satisfactory condition. The dam is state-regulated, with permitting, inspection, and enforcement measures in place to maintain its safety and integrity. The last inspection in March 2021 confirmed its satisfactory condition, and emergency action plans are in place to address any potential risks. With its strategic location and significant role in water resource management, Weber Dam plays a crucial role in supporting the water supply needs of the area.

Weber Dam's historical significance, structural design, and operational functions make it a key infrastructure for water resource management in California. As a public utility, the dam serves as a vital source of water for irrigation and supply purposes, contributing to the overall water management efforts in the region. With its high hazard potential and state-regulated status, Weber Dam underscores the importance of maintaining and safeguarding critical water infrastructure to ensure the resilience of water resources in the face of changing climate conditions.

Year Completed

1924

Dam Length

374

Dam Height

92

River Or Stream

Nfk Weber Creek

Primary Dam Type

Multi-Arch

Surface Area

41

Hydraulic Height

87.9

Drainage Area

9.4

Nid Storage

1100

Hazard Potential

High

Nid Height

92
       
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.