Gasburg Creek Dike Reservoir Report

Last Updated: December 5, 2025

Gasburg Creek Dike, located in La Grange, California, is a vital infrastructure designed by Bechtel in 1971 for flood risk reduction along the Tuolumne River.


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Summary

This earth dam stands at a height of 75 feet, with a structural height of 71 feet and a length of 1040 feet. With a primary purpose of flood risk reduction and secondary purpose of hydroelectric power generation, the dam plays a crucial role in safeguarding the surrounding area from potential flooding events.

Managed by the Federal Energy Regulatory Commission, Gasburg Creek Dike is classified as having a high hazard potential and a high risk assessment level. Despite its importance in the region's water resource management, the condition assessment for the dam is currently unavailable. The emergency action plan for the dam was last revised in December 2020, highlighting the ongoing efforts to ensure the safety and preparedness of the structure in case of emergencies.

The dam's location in Tuolumne County, California, underscores its significance in protecting the local community and environment from the impacts of extreme weather events. With its history of service since the early '70s, Gasburg Creek Dike stands as a testament to the engineering efforts aimed at mitigating flood risks and ensuring the sustainable use of water resources in the region.

Year Completed

1971

Dam Length

1040

Dam Height

75

River Or Stream

Tuolumne River

Primary Dam Type

Earth

Surface Area

1

Nid Storage

1

Structural Height

71

Hazard Potential

High

Nid Height

75
       
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.