Section 401 Water Quality Certification Public Notice

Highland Road Erosion Repair


The San Francisco Regional Water Quality Control Board is currently reviewing an application for the following project for water quality certification under Section 401 of the Clean Water Act. We encourage public comments on the proposed work, which will be considered in the decision on certification. You may submit comments on this project to the staff member below.


Project Name:

Highland Road Erosion Repair
City/County:

Unincorporated, Contra Costa County
Comment Period:

10/2/2025 - 10/22/2025
Project Description:

In winter 2023, heavy storms resulted in the erosion of the embankment of Highland Road and its shoulder, undercutting and damaging its accompanied guardrail. Highland Road crosses an approximately seven-foot culvert that allows for an intermittent drainage to flow under the roadway within the Project area.
Project Files:

Contact Staff for files
Staff Contact:

Kathryn Hart
(510) 622-2356
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612