Flood Control

Programs & Services

Topics

Introduction

The Alameda County Flood Control and Water Conservation District (ACFCD) through ACPWA administers flood control programs and services including the planning and delivery of projects, and maintenance and operations of flood control facilities Some of the core program and services are described below:  

Flood Control Revenue Enhancement – Zones 2, 4 and 9 
Investing in Community Resilience

Presentation to the Alameda County Unincorporated Services Committee – 9/25/2024

Download the Pdf of the PowerPoint Presentation
Download the Video (Slide 9) in the PowerPoint Presentation
                             


Flood Control Major Maintenance Program

The purpose of the Flood Control Major Maintenance Program is to rehabilitate flood control infrastructure that cannot be repaired through more minor routine maintenance efforts. The focus of this program is to repair or replace failed or failing infrastructure components in order to return a facility to its intended use, to prevent further damage, or to bring it into compliance with changes in laws, regulations, codes, or standards. In addition, large storm events can create situations where there becomes an immediate need to perform major repair, rehabilitation and/or reconstruction of large segments of our infrastructure.

Download the Program Summary

Flood Control System Enhancement Program

The purpose of the Flood Control System Enhancement Program is to construct projects that improve or enhance the flood control system by increasing the containment and/or conveyance capacity of the system. Most system components, such as culverts, open channels, levees, floodwalls and pump stations must be designed to meet current FEMA design criteria for containing 100-year (1% annual chance of occurring) storm events.

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Flood Control Environmental Restoration Program

The Flood Control Environmental Restoration Program consists of projects that restore flood control infrastructure through bio-engineering that return man-made channels to a more natural state; that enhance the habitat of creek ecosystems or improve the water quality of creeks; that remove barriers to migratory fish which depend of these creeks for spawning; and projects that implement new creek-side trails in urban areas.

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Flood Control Watershed Planning Program

The Flood Control Watershed Planning Program is designed to study and assess flood control infrastructure by performing hydrologic and hydraulic modeling of drainage networks and facilities, identifying deficiencies in the District’s open channels, closed conduit systems, and pump stations that could cause flooding. For facilities found to be deficient, preliminary engineering alternatives are developed for increased system capacity to convey to decrease the risk of flooding. Hydrologic and hydraulic (rainfall and streamflow) data that is continuously being collected is used in the hydrologic and hydraulic modeling. With the growing threat of sea level rise, the analysis of flood hazards at riverine outfalls to the bay is now an important consideration in the evaluation of flood control infrastructure. Generally, this program is intended to identify system deficiencies so that capital projects may be implemented to reduce flood risks.

Download the Program Summary

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