Thursday, March 25, 2010

Tunnel Excavation is Complete!!

At 9am on March 24th, 2010, the tunnel boring machine (TBM) reached the North Shaft site and excavation of the New Crystal Springs Bypass Tunnel is now complete!!

A new steel pipe will soon be installed inside the 4,200 foot long tunnel to provide a critical link in the Hetch Hetchy water system.

The new pipeline will also help to ensure water delivery after a major earthquake.

Tuesday, March 23, 2010

TBM Expected to Reach North Shaft Within Hours!

The Tunnel Boring Machine (TBM) excavating the New Crystal Springs Bypass Tunnel is expected to reach the North Shaft site in a matter of hours!

The project team expects the TBM could finish as early as tomorrow, March 24th.

Watch this blog for updates!

Wednesday, March 17, 2010

Tunnel Boring Machine to Reach North Shaft Very Soon!


The Tunnel Boring Machine (TBM) boring the New Crystal Springs Bypass Tunnel is expected to reach the North Shaft site very soon!
The project team expects the TBM to finish boring next week - most likely on or around the 25th of March.
The TBM is boring a 4,200 foot long tunnel for a critical water pipeline that will help ensure water delivery after a major earthquake.
We will keep you updated on the tunnel completion and next steps in this important project.

Tuesday, March 2, 2010

SFPUC Labor Relations Efforts Paying Off During Economic Downturn

New Crystal Springs Bypass Tunnel contractor Shank/Balfour Beatty has 27% of its workforce hours in apprenticeship, exceeding the California Division of Apprenticeship Standards requirement of 20%, according to the WSIP Labor Relations Office. The contractor is also providing tunneling equipment on loan to the Northern California Laborers Apprenticeship Program for use in training programs, reports Ardis Graham, Project Labor Agreement Administrator.

The New Crystal Springs Bypass Tunnel is one of SFPUC’s water system improvement projects, and is covered under the WSIP’s Project Labor Agreement (PLA).

For crane and equipment apprentice Simon Streeter and welding apprentice Justin Stephens, the PLA’s initiatives have resulted in opportunities to learn new, transferable skills through the Tunnel project. “We’re learning from guys with many years of experience. They look out for us. It is great to be employed in a good paying job where I learn something new each day,” said Streeter. Both men are residents in the WSIP service area.

Photos: Simon Streeter (top) and Justin Stephens (bottom).