Martis Creek Reservoir Reservoir Report

Last Updated: December 5, 2025

Martis Creek Reservoir is located in Placer County, California, and was completed in 1972.


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Summary

The reservoir is situated at an elevation of 5848 feet and has a capacity of 23,000-acre feet. It serves as a storage facility for the Martis Creek Watershed, which includes Martis Creek and its tributaries. The reservoir is primarily fed by snowmelt and surface flow from Martis Creek, as well as the surrounding snowpack.

The Martis Creek Reservoir is an essential source of water for irrigation and agricultural purposes in the area. Additionally, it also supports recreational activities, including fishing, boating, and hiking. The reservoir has an extensive network of trails that offer stunning views of the surrounding scenery. As a result, it attracts numerous visitors every year, making it a vital economic resource for the region.

Reservoir Details

Storage 24hr Change 0.23%
Percent of Normal 100%
Minimum 799.0 acre-ft
2016-09-02
Maximum 2,826.0 acre-ft
2017-02-10
Average 877 acre-ft
Dam_Height 93
Hydraulic_Height 108
Drainage_Area 39
Year_Completed 1972
Nid_Storage 20400
Hazard_Potential High
Structural_Height 113
Primary_Dam_Type Earth
River_Or_Stream MARTIS CREEK
Foundations Soil
Surface_Area 768
Dam_Length 2673
Nid_Height 113
       
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.