The San Francisco Public Utilities Commission New Irvington Tunnel project was recently awarded the 2016 Project of the Year Award in the Environment Category for projects over $75 million. The award was presented at the awards luncheon on February 25 in Berkeley.
“It has been my pleasure to serve as the project manager of this great project team. Given all the challenges that we been through on this project, it is very satisfying to be recognized by the industry for the hard work that we put in to make this project successful,” said David Tsztoo, P.E., Sunol/San Joaquin Regional Project Manager,addressing the project team.
Facilities include the new tunnel with initial and final linings; overflow shaft; tunnel portals; a manifold and pipelines to facilitate the connection of Bay Division Pipelines 1, 2, 3, 4, and the new Pipeline 5; and related ancillary appurtenances. The tunnel was excavated by conventional means from four headings: two from the Vargas Shaft (adjacent to Interstate I-680), one from the Alameda West Portal, and one from the Irvington Portal.
The project, estimated to cost $250 million, broke ground in the fall of 2010. The first tunneling began from the Alameda West Portal in March 2011, and hole through occurred in October 2013. The project completed in November 2015.