Section 401 Water Quality Certification Public Notice

Muir Woods Dipsea Bridge 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:

Muir Woods Dipsea Bridge Project
City/County:

Mill Valley, Marin County
Comment Period:

8/11/2026 - 08/31/2026
Project Description:

The existing wooden stairs along the creek banks and the seasonal wooden plank crossing of Redwood Creek, along the Dipsea Trail, would be replaced with an approximately 6-foot wide and 115-foot-long pedestrian bridge.
Project Files:

Contact Staff for files
Staff Contact:

kelsey Kruger
(510) 622-2357
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612