The Baker-Barry Tunnel near Sausalito in Marin County will close down for four months, seven days a week, for long-awaited rehab work, federal park officials said Friday.
The project is slated to begin Jan. 2 and will close one of the primary routes to the Marin Headlands. One-day closures of the tunnel, which first opened in 1918, will begin in December for “pre-project inspections.”
The preservation project will install better lighting and “safer surfaces,” as well as replace the water and sewer lines mounted in the tunnel, which is expected to reopen early May.
The single-lane, half-mile tunnel is affectionately referred to as Five Minute Tunnel as drivers are often forced to wait their turn.
Commuters can check traffic updates and alternate routes on the National Park Service website.
Sarah Ravani is a San Francisco Chronicle staff writer. Email: email@example.com Twitter: @SarRavani