SFPUC approves $250M tunnel project

Spending $250 million on anything raises eyebrows.

But since it means San Franciscans will be able to drink water after a massive earthquake, it is money well spent, according to the San Francisco Public Utilities Commission.

The agency recently approved construction of a 3.5-mile-long water delivery tunnel that is seismically superior to an existing 78-year-old tunnel. Like the aging tunnel, the new tunnel will deliver water from the Hetch Hetchy Water System to 2.5 million Bay Area customers.

The existing tunnel is called The Irvington Tunnel.

The new tunnel, appropriately, will be called The New Irvington Tunnel.

The new tunnel will be placed parallel to the existing tunnel, “between the Sunol Valley south of Highway I-680 and Fremont,” the agency said.

“The new tunnel will provide an additional seismically-designed connection between water supplies from the Sierra Nevada Mountains and the Alameda Watershed to Bay Area water distribution systems,” the agency said in a statement.

The new tunnel will also allow the SFPUC to shut down the existing tunnel for much-needed maintenance and repairs, the agency said.

The tunnel will be excavated using conventional mining methods, including a road header and, in sections of hard rock, controlled detonations, the agency said.

The finished tunnel will be horseshoe shaped and have an internal diameter of approximately 8.5-to-10.5 feet, it said.

The SFPUC expects to select a contractor by early January. Construction is scheduled to begin in April 2010 with completion in early 2014, it said.

 

Just Posted

Climate strike organizers say SFUSD blocked student participation

The organizers behind Friday’s Climate Strike in San Francisco are accusing the… Continue reading

City puts closure of long-term mental health beds on hold

In response to public outrage over a proposal to suspend 41 permanent… Continue reading

Here we go again – new dog rules in Golden Gate National Recreation Area

The GGNRA released a 2019 Superintendent’s Compendium that makes significant changes that appear to implement parts of the ill-fated Dog Management Plan.

Thousands take to San Francisco streets in Climate Strike

The protesters are calling for urgent action on climate change, including putting pressure on local elected leaders to support more drastic steps.

Good Day Sept. 22-24, 2019

Mark Morris Dance Group, Presidio Theatre Open House, PUSHFest, Community Music Center Sunday, Making Faces-Portraits by John Kascht, WWE Monday Night Raw, Margaret Atwood, George Takei, Durand Jones, Kurt Ribak, Incubus

Most Read