Caldecott groundbreaking - TunnelCast
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January 22, 2010: Supporters celebrate the groundbreaking of the Caldecott Tunnel Fourth Bore Project in Northern California. The $420 million project, received $197 million from President Obama's American Recovery and Reinvestment Act of 2009, commonly known as federal stimulus funds, the largest Recovery Act allocation to date in the nation.

Snapshot

Caldecott Fourth Bore Project

Paula Wallis reports for TunnelTalk
Location:
Oakland, California
Tunnel:
1,033m (3,389ft) long x 12.58m (41.25ft)
with seven cross passages connecting the third and fourth bores.
Type:
Road Tunnel
Contract Value:
$215 million
Method:
NATM
Contractor:
Designer:
Roadheader supplier: