October 2014 Tunnel Project Updates

CALIFORNIA Menlo Park/Newark Bay Tunnel Michels/Jay Dee/Coluccio JV The first tunnel under San Francisco Bay went into service in October after successful hydro tests and disinfection of the 5-mile tunnel over five weeks. The tunnel completes the “lifeline” designed to withstand major earthquakes. The...

June Project Updates

CALIFORNIA Menlo Park/Newark Bay Tunnel Michels/Jay Dee/Coluccio JV This $215.2 million project for the San Francisco Public Utilities Commission (SFPUC) involves the installation of a new 108-in. diameter, 26,208 ft long, water transmission main pipeline (a portion of the new BDPL No. 5) using tunnel...

February Tunnel Updates

CALIFORNIA Menlo Park Bay Tunnel Michels/Jay Dee/Coluccio JV This $215 million project for the San Francisco Public Utilities commission had achieved 91 percent completion as of December 2013, and was scheduled to be complete by March 2015. The objective is to install a new 108-in. diameter, 26,208 ft...

October Tunnel Updates

CALIFORNIA Sunol/Fremont New Irvington Tunnel Southland/Tutor Perini JV Excavation on the 18,660 ft New Irvington Tunnel for the San Francisco Public Utilities Commission (SFPUC) is almost complete with less than 136 ft remaining to be mined between the Alameda West Portal heading and the Vargas Shaft East...

Toronto-York Spadina Subway Extension – Southern Tunnels

Toronto-York Spadina Subway Extension – Southern Tunnels McNally-Kiewit-Aecon This project $90 million project for the Toronto Transit Commission was awarded in November 2010 with a completion date of Sept. 30, 2013. The project, to extend an existing subway line northward and into York, included...

Toronto – Billy Bishop Toronto City Airport Pedestrian Tunnel

Toronto Billy Bishop Toronto City Airport Pedestrian Tunnel Technicore Underground Inc. This project for the Toronto Port Authority (TPA) involves 186 linear meters of tunnel, 10 m maximum tunnel diameter, 10 m minimum rock cover and two shafts (mainland and island sides). The tunnel is being constructed in...

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