About Sediment Management and Flood Control District
For over 100 years, the Los Angeles County Flood Control District (District) has provided flood protection and water conservation for much of Los Angeles County.
The District manages a flood control system of dams, debris basins, and other drainage infrastructure, which reduces risk of floods and debris flows for downstream communities. Effective sediment management requires the regular removal of sediment that deposits within District facilities.
What We Do
What is Sediment Management
Learn more about what sediment management is and how it affects you and the County of Los Angeles.
Strategic Plan
The Strategic Plan will address long-term sediment management needs while taking environmental and social impacts into account, in addition to cost.
Sediment Removal Projects
Several dams have been impacted by sediment and require immediate action. The removal projects will restore flood capacity and maximize water conservation.
Contact Us
The Flood Control District is always open to hearing new ideas so reach out to share yours.
Sediment Removal Projects
Over the past two decades, several major wildfires have impacted Los Angeles County reservoirs, including the Station Fire (2009), Bobcat Fire (2020), Bridge Fire (2024), and the Eaton Fire (2025). Generally, it takes five years or more for a watershed to recover from a wildfire. Heavy sedimentation from the denuded ground surface accumulates within reservoirs during storms within the recovery period, reducing the reservoir’s capacity and potentially impacting the dam’s outlet works. This limits the dam’s ability to provide flood protection to downstream residents and to capture stormwater used to replenish the region’s groundwater supply.
Over the next several years, the District plans to conduct sediment removal from several reservoirs impacted by recent fires. These projects aim to restore reservoir capacity to allow the District to continue providing flood protection and to maximize water conservation efforts.
For more information on these projects please contact: reservoircleanouts@pw.lacounty.gov
Contact Us
The Flood Control District has provided flood risk management and water conservation for almost 100 years. However, new challenges associated with sediment management have emerged. The Flood Control District is always open to hearing and discussing new ideas, so find out how to be involved and share your ideas.
For information regarding Reservoir Cleanouts, please contact: reservoircleanouts@pw.lacounty.gov
About Sediment Management and Flood Control District
For nearly 100 years, the Los Angeles County Flood Control District (District) has provided flood risk management and water conservation for much of Los Angeles County.
The District manages a flood control system of dams, debris basins, and other drainage infrastructure, which reduces risk of floods and debris flows for downstream communities. Effective sediment management requires the regular removal of sediment that deposits within District facilities.