Caldecott Tunnel
Between Oakland and Orinda
4th Bore Inside
4th Bore, Caldecott Tunnel

Construction began in 2010 and should conclude 2014

Inside, Caldecott Tunnel

The Caldecott Tunnel is an east-west highway tunnel through the Berkeley Hills between Oakland and Orinda, California. Its four bores carry California State Route 24. Named after Thomas E. Caldecott, former mayor of Berkeley, it opened in 1937 as a two-bore tunnel.[from wikipedia]

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