Department of Public Works
dpw.lacounty.gov
Sustainability
Big Tujunga Dam Sediment Removal Project (Water Resources)
Summary
The Project will remove 4.4 million cubic yards of sediment to restore the reservoir to its original design capacity of 6,240 acre-feet. Sediment will be removed using heavy equipment such as bulldozers, loaders, and scrapers. The sediment will then be placed in a previously established Sediment Placement site (SPS) located just downstream of the dam. The SPS will be vegetated with indigenous plants. The Project is currently in the concept phase, with either a conveyor belt system or low emission trucks being considered as feasible options for transporting sediment to the SPS. The project will include an environmental impact report, public review opportunities, and partnering with environmental agencies.
Benefits to Environmental Resources
Restoring reservoir capacity will improve flood plain management, and support continued operation of low flow releases for downstream habitat.
Contribution to wellbeing of DPW and the County
The project will contribute to sustaining local water supplies while reducing flood risk for our communities in Los Angeles County.
Contribution to Economic Health
Tremendous economic benefits of improving local water supplies and reducing imported water demand.
Modified By
Husted, Jack
Adobe Reader