Muni Shuts Down Twin Peaks Tunnel For 2-Month, $40 Million Upgrade

For the next two months the Twin Peaks tunnel will be closed and under construction.

SFMTA is spending $40 million on repairing two miles of track closing the West Portal station to Castro/Market station, for two full months.

This means there’s no passenger service between Castro and West Portal. Muni is asking the public to be patient.  The repairs are long overdue and although it will be an inconvenience for some it needs to be done. 

When construction wraps up August 24, trains will be able to travel at their designed speed of 55 miles per hour, something they cannot safely do right now.

So be patient!  It will definitely be a smoother ride soon! 

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