The Alto Tunnel Study

The Alto Tunnel Study is an effort to gather information to determine whether it is feasible to reconstruct  the Alto Tunnel for future use by bicyclists and pedestrians. The County is the lead agency in partnership with and cooperation with the Town of Corte Madera and the City of Mill Valley.  To learn more about the study, click here.

On September 27th, a community meeting was held at the Corte Madera Community Center to discuss what was found inside the tunnel and the updated cost estimates. To view a video recording of that meeting, please click on the YouTube embedded video below. 

The video will remain on the Community Media Center of Marin (CMCM) Youtube page. CMCM serves Marin County with community, educational and governmental cable channels via Marin TV. Click here to go directly to their page.