A project to seismically upgrade the Twin Peaks Tunnel may have to start again from square one.
The N-Judah will be out of commission for a total of four weekends between September and October.
As Metro trains wound down service early Friday morning, crews and engineers headed out to test Muni’s new light rail vehicles.
Despite signs, lights and speed bumps, private vehicles continue to try to enter Muni Metro tunnels.
The work inside the Sunset Tunnel that has been going on since November of 2014 is finally wrapping up.
Work can resume again on the Sunset Tunnel after neighbors and the SFMTA resolved noise complaints from residents.