Silver Lake Reservoir Reservoir Report

Last Updated: December 5, 2025

Silver Lake Reservoir is a man-made body of water located in Silver Lake, Los Angeles, California.


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Summary

Constructed in 1907, it was a crucial component of the area's water supply system. However, due to drought conditions, the reservoir was drained in 2015. The reservoir's hydrology is dependent on the surrounding mountains' snowpack, which provides the majority of the area's water supply. In addition, surface flow from the Los Angeles River and local groundwater also contributes to the reservoir's water levels. The reservoir was not used for agricultural purposes, but it provided recreational opportunities for nearby communities, including jogging, walking, and fishing. Despite its current dry state, plans are in place to restore the reservoir and reintroduce it to the community as a public space.

Reservoir Details

Storage 24hr Change -0.57%
Percent of Normal 278%
Minimum 317.0 acre-ft
2021-03-23
Maximum 9,266.0 acre-ft
2024-06-06
Average 2,919 acre-ft
Dam_Height 32
Hydraulic_Height 28
Drainage_Area 15.2
Year_Completed 1876
Nid_Storage 13130
River_Or_Stream Silver Fork American River
Structural_Height 30
Primary_Dam_Type Earth
Surface_Area 525
Hazard_Potential High
Outlet_Gates Tainter (radial) - 2
Dam_Length 280
Nid_Height 32
       
Seasonal Comparison
Storage Levels
Pool Elevation Levels
Top Conserv Storage Levels
Inflow Levels

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.