Rubber Dam 3 Reservoir Report

Last Updated: December 5, 2025

Rubber Dam 3, located in Fremont, California, is a local government-owned structure designed for flood risk reduction along the Alameda Creek.


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Summary

Completed in 1990, this rubber dam stands at a height of 17 feet with a hydraulic height of 13.2 feet, helping to manage water levels and reduce the risk of flooding in the area. With a storage capacity of 154 acre-feet, it serves multiple purposes including flood risk reduction, tailings management, and water supply for the community.

Maintained and regulated by the California Department of Water Resources, Rubber Dam 3 has been deemed to have a significant hazard potential, although its condition assessment in 2017 was reported as satisfactory. The dam spans 375 feet in length and covers a surface area of 24 acres, contributing to the overall flood protection efforts in the region. Regular inspections are conducted, with the last inspection carried out in February 2021, ensuring the structure's operational reliability and safety measures are up to standard.

As a critical piece of infrastructure in managing water resources and climate-related risks, Rubber Dam 3 plays a vital role in safeguarding the local community from potential flooding events. With its strategic location along the Alameda Creek and effective flood risk reduction capabilities, this dam serves as an important asset in ensuring water security and resilience in the face of changing environmental conditions.

Year Completed

1990

Dam Length

375

Dam Height

17

River Or Stream

Alameda Creek

Primary Dam Type

Other

Surface Area

24

Hydraulic Height

13.2

Drainage Area

633

Nid Storage

154

Hazard Potential

Significant

Nid Height

17
       
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.