Santa Anita Reservoir Post-Fire Emergency Restoration Project - LA County Public Works

Santa Anita Reservoir
 

Santa Anita Reservoir Restoration Project

Chantry Flat Road

Due to potential safety hazards because of the Bobcat Fire, the U.S. Forest Service has prohibited public use or access of the Chantry Flat Road (Forest Road No. 2N41). Forest Order No. 05-01-23-05 can be found here.

Coordination with Agencies

While the Santa Anita Reservoir Post-Fire Emergency Restoration Project is an emergency project, Public Works will ensure the project complies, and in some instances exceeds, regulatory requirements typically enforced on non-emergency projects. Public Works is partnering with the agencies below to ensure measures are taken to protect the public, wildlife, habitat, and water quality to the extent possible.

  • United States Army Corps of Engineers (USACE) – Coordination for impacts to Waters of the United States. A Regional General Permit 63 – Emergency Authorization has been issued by USACE. A Section 404 permit will be issued by USACE.
  • California Department of Fish and Wildlife (CDFW) –Coordination with CDFW to implement measures that protect wildlife and habitat. An emergency exemption has been issued for the project.
  • Regional Water Quality Control Board (RWQCB) – Coordination with RWQCB to implement measures to protect water quality and aquatic resources. An emergency notification has been issued for the project. A Section 401 certification will be issued by RWQCB.

Emergency Declarations

On October 13, 2020, the Los Angeles County Board of Supervisors passed a motion instructing Los Angeles County Public Works to take immediate action to repair and restore facilities affected by the Bobcat Fire. This includes the removal of sediment from major dams and reservoirs such as Santa Anita Reservoir. In accordance with the Board of Supervisors’ motion, Public Works has implemented a two-year project to remove 600,000 cubic yards of sediment from Santa Anita Reservoir.

In addition to the emergency declaration by the Los Angeles County Board of Supervisors, the Bobcat Fire was also declared an emergency by the federal government and the State of California. These emergency declarations can be found in the Resources section.

Construction Schedule

Construction Schedule comprised of Access Road Construction, Sediment Excavation, and Sediment Placement.

Spring 2023 – Spring 2024

2 months each year

Spring 2023 – Fall 2024

2 years

Spring 2023 – Fall 2024

2 years

Reconstruct access road to set up conveyor belt that will move sediment from the reservoir to the Sediment Placement Site (SPS). Portions of the access road may need to be reconstructed each year.

Remove 600,000 cubic yards of excess sediment, which will enable the County to meet and maintain acceptable flood control standards.

Place material at Santa Anita SPS, located approximately 2 miles south of the reservoir.

Erosion control measures and drainage features will be implemented at the SPS following each work season.

Site Plan

Santa Anita Site Plan

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