Emergency Storage Basin Reservoir Report

Last Updated: December 5, 2025

The Emergency Storage Basin is a vital water resource infrastructure located in Sacramento, California, designed for flood risk reduction and water supply purposes.


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Summary

Constructed in 1977 with an earth dam type, the basin has a height of 20 feet and a storage capacity of 1362.2 acre-feet. With a drainage area of 0.11 square miles and a surface area of 88 acres, the basin plays a crucial role in managing water resources in the region.

Owned and regulated by the local government, the Emergency Storage Basin is inspected regularly to ensure its structural integrity and operational efficiency. Despite its low hazard potential, the basin is maintained in satisfactory condition, with the last assessment conducted in September 2017. The basin's emergency action plan and risk management measures are continuously reviewed and updated to meet safety guidelines, highlighting its importance in safeguarding the local community from potential water-related emergencies.

With its strategic location and role in water supply management, the Emergency Storage Basin serves as a key asset in the region's infrastructure network. As climate change continues to impact water resources, the basin's significance in flood risk reduction and water supply resilience is underscored, making it a critical component in the region's efforts to adapt to changing environmental conditions and ensure sustainable water management for the future.

Year Completed

1977

Dam Length

11570

Dam Height

20

River Or Stream

Offstream

Primary Dam Type

Earth

Surface Area

88

Hydraulic Height

18

Drainage Area

0.11

Nid Storage

1362.2

Hazard Potential

Low

Nid Height

20
       
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.