From Marin County DPW :
"A note to commuters: Caltrans has notified us about high tides expected next week along with the storms that are on their way.The lower half of the Manzanita Park and Ride lot will be closed today through March 11. Maintenance crews also have turned on a changeable electronic message board in the lot to advise the people of the closure. Carpoolers should arrive early for the remaining spots."
This was shared with eight neighborhoods in Nextdoor.