SF News Reminder: Muni Is Shutting Down the Twin Peaks Tunnel at Nighttime for a Week, Starting Thursday Riders of the K-Ingleside and M-Ocean View be aware, Muni is closing the Twin Peaks Tunnel every night for a week starting Thursday, and the Forest Hill and West Portal stations will close at 9 p.m. September 14-21.
Arts & Entertainment Video: The Twin Peaks Tunnel, Circa 1917 Billed at the time as the longest municipal tunnel in the world, The Twin Peaks Tunnel was built to promote and develop the western portions of San Francisco. Examiner notes: "[...] Twin Peaks Tunnel