Section 401 Water Quality Certification Public Notice

Emergency Aviador Bridge Repair 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:

Emergency Aviador Bridge Repair Project
City/County:

Millbrae, San Mateo County
Comment Period:

4/25/2026 - 05/15/2026
Project Description:

The Aviador Avenue Bridge, a critical access point for the neighborhood, has shown significant structural deterioration since a 2023 assessment, with worsening cracks, corrosion, and concrete damage confirmed in a 2026 follow-up survey. Although a replacement project was planned and permitted processes initiated, construction has been delayed to 2027 due to funding constraints. The accelerated deterioration observed in 2026 has heightened safety concerns and increased the urgency for repairs or replacement.
Project Files:

Contact Staff for files
Staff Contact:

Jackson Fimrite
(510) 622-2310
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612