Press Room County Opens Door for Alto Tunnel - Marin I.J. Posted: 2011-10-12 Click Marin County Board of Supervisors to view their approved allocation of $8.8M in federal funds Tuesday, August 23, 2011, for a series of bicycle and pedestrian projects, including the Mill Valley/Corte Madera Alto Tunnel connection study.  Read Marin I.J.'s entire August 23rd article.  Press Room

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