Gerle Creek Reservoir Report

Last Updated: December 4, 2025

Located in El Dorado County, California, Gerle Creek is a concrete gravity dam with a height of 65 feet and a hydraulic height of 64 feet.


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Summary

Completed in 1962, this hydroelectric dam serves as a vital source of water storage with a capacity of 831 acre-feet. The dam's primary purpose is for hydroelectric generation, as well as providing recreational opportunities for visitors.

Managed by the Federal Energy Regulatory Commission, Gerle Creek Dam is regulated and inspected regularly to ensure its safety and operational efficiency. With a low hazard potential and moderate risk assessment rating, the dam remains a crucial infrastructure for water resource management in the region. The dam's spillway, with a width of 180 feet, helps control water discharge during peak flow events, contributing to the overall flood control measures in the area.

Surrounded by the picturesque landscape of Coloma, Gerle Creek Dam not only plays a key role in water resource management but also offers a scenic destination for outdoor enthusiasts. The dam's proximity to the Gerle Creek River provides ample opportunities for recreational activities such as fishing, boating, and hiking. With its rich history and ongoing commitment to safety and sustainability, Gerle Creek Dam remains a significant landmark for both water resource and climate enthusiasts alike.

Year Completed

1962

Dam Length

444

Dam Height

65

River Or Stream

Gerle Creek

Primary Dam Type

Concrete

Surface Area

50

Hydraulic Height

64

Drainage Area

30.9

Nid Storage

831

Structural Height

73.5

Hazard Potential

Low

Nid Height

74
       
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.