Wednesday, October 9, 2013

Milestone Breakthrough for the New Irvington Tunnel

Roadheader breaks through for final hole-through on October 8th

On October 8, 2013 at precisely 9:00 a.m. two crews of miners from the New Irvington Tunnel project met underground with their roadheader digging away at the last final feet of rock.  Miners celebrated the final hole-through excavation of the 18,660 foot tunnel.  The 3.5 mile New Irvington Tunnel will transmit water between the Sunol Valley and Fremont to our 2.6 million Bay Area customers. Work is still not quite done yet, our miners will prepare the new tunnel for installation of 8.5 ft diameter steel pipe, installed in 50-foot sections and welded together inside of the tunnel.  This will be followed by the placement of cellular concrete between the steel pipe and tunnel wall to complete the project in mid-2015. 


Hole-Through Challenge Winner: Priya Iyer
With that, we also would like to congratulate our Hole-Through Challenge contestant.... Priya Iyer! Priya selected the winning time and date of the hole-through and will be receiving our prize package.  Congratulations to Priya!

Our hardworking New Irvington Tunnel crew

                                      Tunnel Superintendents Jim Mulkey and Jack Bowling from 
                                      Southland Contracting share a handshake after the hole-through.

New Irvington Tunnel Project Staff celebrates Hole-Through

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