April 2016, Vol. 71 No. 4


McMillen Jacobs, New Irvington Tunnel Project Awarded Top Honor

The San Francisco Public Utilities Commission New Irvington Tunnel project was awarded the 2016 Project of the Year Award in the Environment Category by the American Public Works Association for projects exceeding $75 million. McMillen Jacobs Associates, an environmental, engineering and construction company serving the heavy civil, underground and water resources markets, functioned as the lead design team for the tunnel, shafts, and portals. The firm also provided engineering services during project construction.

The project’s facilities include a new tunnel with initial and final linings; over-flow shaft; tunnel portals; a manifold and pipelines to facilitate the connection of Bay Division Pipelines 1-4, as well as the newest Pipeline 5; and, related ancillary appurtenances. The tunnel was excavated from four headings – two from the Vargas Shaft adjacent to I-680, one from the Alameda West Portal, and one from the Irvington Portal.

The large-scale project broke ground in fall 2010, and the first tunneling started from the Alameda West Portal in March 2011 while hole through took place in October 2013. The tunnel was placed into service in February 2015, and the project was completed in November 2015 at an estimated cost of $250 million. (415) 434-1822, www.mcmjac.com.

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