Section 401 Water Quality Certification Public Notice
EA-2J510 (culvert on MRN-01 at PM 40.3) State Route 1 Culvert Replacement Project
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: |
EA-2J510 (culvert on MRN-01 at PM 40.3) State Route 1 Culvert Replacement Project |
| City/County: |
Marshall, Marin County |
| Comment Period: |
5/29/2025 - 6/18/2025 |
| Project Description: |
The purpose of the State Route (SR) 1 Culvert Replacement Project (Project) is to replace the existing culvert and rebuild the slope to restore drainage system functionality and prevent flooding and further damage to SR 1. The Project is needed because of culvert failure and slip out. The existing culvert has exceeded its service life and exhibits structural deficiency resulting from corrosion, deformation, and/or abrasion damage. |
| Project Files: |
Contact Staff for files |
| Staff Contact: |
Qi Yan (510) 622-2329 Water Quality Control Board 1515 Clay Street, Ste 1400 Oakland, CA 94612 |
