UPDATE #2: There is no available reroute for the 25 Treasure Island Route. Significant delays are possible in both directions, with eastbound service being the most heavily impacted.(More: 34 in last 48 hours)
A printable factsheet with information about the Twin Peaks Tunnel closures on June 22-23, July 20-21 and August 22-29. Includes Muni service change information on the K, L and M bus substitutions as well as the S Shuttle trains.