Moss Beach State Route 1 Congestion & Safety Improvements Project Update

The County of San Mateo, San Mateo County Transportation Authority, and Caltrans are preparing a draft environmental document for the Moss Beach State Route 1 Congestion & Safety Improvements Project and will host a public workshop in spring/summer 2026. 

Check out recent project updates and new videos to see what is happening during the current phase. You can also sign up for updates and submit questions or comments on the project webpage.