New Irvington Tunnel construction - TunnelCast
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Paula Wallis reports for TunnelTalk

June 19, 2011 : Tunneling professionals gathered in San Francisco for the 2011 RETC take a tour of the New Irvington Tunnel for the San Francisco Public Utilities Commission. Contractor Southland / Tutor Perini JV is about three months into excavation of the 3.5 mile tunnel.

New Irvington Tunnel bid result - TunnelTalk, April 2010
New Irvington Tunnel award - TunnelTalk, July 2010

Snapshot

RETC tour of the New Irvington Tunnel project

Location:
Sunol, California
Dimensions:
3.5 mile (5.6km) horseshoe shaped tunnel finished with a 8.5ft (2.5m) diameter steel carrier pipe.
Type:
Potable water supply
Owner:
San Francisco Public Utilities Commission
Contract Value:
$226,657,700
Roadheader:
A Mitsui Mike 200AM
Two Antraquip 175
Contractor:
Southland/Tutor Perini JV
Designer:
URS
Subconsultant:
Jacobs Associates
Construction Management:
Hatch Mott MacDonald