Michigan Bar No. 2 Reservoir Report

Last Updated: December 5, 2025

Michigan Bar No.


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Summary

2, also known as Pond #3, is a public utility water supply dam located in Rancho Murieta, California. Completed in 1983, this earth dam stands at a height of 36 feet and has a hydraulic height of 33.5 feet. With a storage capacity of 35 acre-feet and a surface area of 2.29 acres, this dam serves multiple purposes including flood risk reduction, irrigation, and water supply for the surrounding area. The dam is regulated by the California Department of Water Resources and is subject to regular inspections to ensure its safety and effectiveness.

Despite its low hazard potential, Michigan Bar No. 2 has been assessed to be in satisfactory condition as of September 2017. The dam's last inspection in February 2021 confirmed its structural integrity and readiness to handle any potential emergencies. In the event of a crisis, emergency action plans are in place to coordinate response efforts and ensure the safety of downstream communities. With its strategic location on the Tr Cosumnes River and its vital role in water resource management, Michigan Bar No. 2 plays a crucial role in supporting the region's water needs and protecting against flooding events.

Year Completed

1983

Dam Length

1400

Dam Height

36

River Or Stream

Tr Cosumnes Rv

Primary Dam Type

Earth

Surface Area

2.29

Hydraulic Height

33.5

Nid Storage

35

Hazard Potential

Low

Nid Height

36
       
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.