Wednesday, August 14, 2013

Less than 1,000 feet to go!

It’s an exciting time here for the New Irvington Tunnel Project team.  As of August 14th, we have 886 feet of mining left to go!  The hole-through of the entire 18,860 ft tunnel is expected sometime this Fall 2013.  After we hole-through, construction is not quite done yet.  Miners will start preparing the tunnel for the installation of 8.5 ft diameter steel pipe, installed in 50-foot sections and welded together inside of the tunnel. We anticipate final completion of the New Irvington Tunnel at the end of 2014. Upon completion of the seismically-upgraded New Irvington Tunnel, the SFPUC will take the existing tunnel out of service for an inspection to assess the need for future maintenance and repairs.

We plan on hosting an Open House for the project on September 25, 2013.  All are invited to see our tunnel progress and project updates. Stay tuned for the invite!

For more information on the New Irvington Tunnel Project, subscribe to our blog, or call our 24 hour answer line at 866-973-1476 or email mle@sfwater.org

Tunnel workers pouring invert concrete

Vargas East Final Steel Liner looking west



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