This project is being implemented by the City of Los Angeles Department of Public Works Bureau of Engineering (BOE), in collaboration with the Bureau of Sanitation and the Department of Recreation and Parks.
The scope of the work includes removal and mechanical dewatering of approximately 239,000 cubic yards of lake sediment. Sediment removal, removal of accumulated materials from the bottom of lakes, rivers, harbors and other water bodies, is necessary because of the natural process of sedimentation due to erosion, urban runoff, and organic decay.
In this case, Machado Lake’s water depth has been significantly decreased due to sediment build-up over several decades.
The sediment removal will increase the lake capacity to handle storm flows, ameliorate eutrophic conditions, and control the growth of nuisance aquatic plant species andÂ will occur throughout the lake with specific focus on the northern and southern portions of the lake.