Contra Costa Canal Storm Damage Repair Project - FEMA 4683


SCH Number
Public Agency
Contra Costa Water District
Document Title
Contra Costa Canal Storm Damage Repair Project - FEMA 4683
Document Type
NOE - Notice of Exemption
Document Description
CCWD proposes to perform slope repairs to 25 landslides that occurred along the Contra Costa Canal as a result of the severe winter storms of January 2023. As an immediate emergency protective measure after the storms, these slide areas were temporarily protected by placing a layer of plastic sheeting (Visqueen) secured by sandbags that were staked into the ground. The permanent repairs will consist of removing and disposing of the Visqueen and sandbags, excavating the disturbed areas back to stable soil, then filling the excavated areas with rock slope protection (RSP) at a maximum depth of approximately 3 feet. Sections of canal lining fencing that have been damaged at these landslide sites will also be replaced.

Contact Information

Cody Ericksen
Agency Name
Contra Costa Water District
Job Title
Associate Planner
Contact Types
Lead/Public Agency / Project Applicant


Contra Costa
State Highways
SR 4, SR 160
Stoneman Elementary, Los Medanos College, Mission Elementary
Contra Costa Canal, Contra Loma Reservoir
Other Location Info
Project takes place at two areas along the Contra Costa Canal, Markley Canyon and Ridgeline.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Section 15301(b) and 15304
Reasons for Exemption
This project is classified as the operation, repair, maintenance, or minor alteration of existing public or private structures and facilities, where "existing facilities" are defined as "facilities or both investor and publicly owned utilities that are used to provide public utility services." This project also involves the minor public alterations in the condition of land, water, and/or vegetation which do not involve the removal of healthy, mature, scenic trees..."
County Clerk
Contra Costa


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