Ice House Dike No. 1 Reservoir Report

Last Updated: December 4, 2025

Ice House Dike No.


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Summary

1, also known as Ice House Auxiliary, is a crucial public utility structure located in Coloma, California, along the South Fork Silver Creek. This earth dam stands at a height of 57 feet with a hydraulic height of 51 feet, serving primarily for hydroelectric purposes and recreation. With a storage capacity of 43,496 acre-feet and a maximum discharge of 22,500 cubic feet per second, this dam plays a vital role in water resource management in the region.

Managed by the Federal Energy Regulatory Commission, Ice House Dike No. 1 has a significant hazard potential and is under state regulation, inspection, and enforcement by the Department of Water Resources. Despite lacking detailed condition assessment data, it is clear that this dam is integral for flood control and water supply in El Dorado County. With a risk assessment rating of High (2), it is essential for climate and water enthusiasts to monitor the maintenance and emergency preparedness efforts surrounding this critical infrastructure.

As a key component of the water infrastructure system in California, Ice House Dike No. 1 not only provides hydroelectric power but also contributes to recreational activities and water storage in the area. With its unique design and location, this dam serves as a reminder of the delicate balance between harnessing water resources for human needs and safeguarding against potential risks and hazards posed by natural forces. It is imperative for stakeholders and climate enthusiasts to stay informed about the condition and management of this structure to ensure the sustainable utilization of water resources in the region.

Dam Length

985

Dam Height

57

River Or Stream

South Fork Silver Creek

Primary Dam Type

Earth

Surface Area

678

Hydraulic Height

51

Drainage Area

27.2

Nid Storage

43496

Structural Height

57

Hazard Potential

Significant

Nid Height

57
       
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.