Tunnel

Pulgas Water Temple near Redwood City (photo credit: Anna Duckworth)

Hetch Hetchy Drinking Water Delivered Through 1st-of-its Kind Tunnel Underneath San Francisco Bay

A first-of-its kind tunnel from Newark to Redwood City dug underneath San Francisco Bay began delivering water from the Hetch Hetchy Reservoir in Yosemite National Park on Wednesday.

10/15/2014

The southern portal of the Waldo Tunnel in Marin County. (Edward Betts/Wikimedia Commons)

Williams’ Family Supports Renaming Waldo Tunnel; Project Moves Ahead

The Robin Williams tunnel petition from back in August is moving forward—and it has the family’s support…

10/08/2014

(Getty Images)

Overnight Closures Planned For Caldecott Tunnel Bore Over Next Two Weekends

Motorists can expect delays during overnight closures of an eastbound bore of the state Highway 24 Caldecott Tunnel from Oakland to Orinda over the next two weekends as crews work on the roadway, according to Caltrans.

08/08/2014

Adam Jay Pye was killed when a sand tunnel he was digging collapsed on him in Half Moon Bay. (Source: Facebook)

Man Dies After Tunnel In Sand Collapses On Half Moon Bay Beach

A man died on a Half Moon Bay beach after a tunnel he was digging collapsed, burying him under four feet of sand Monday night.

07/22/2014

Scott Shackleton opens the entrance to the Lawson Adit. (CBS)

Abandoned Mine Shaft On Cal Campus Could Help Warn Of Coming Quakes

Behind a sturdy, rusted door, scrawled with ‘Don Not Enter’ signs lies the key to learning more about the Hayward Fault. What’s known as the Lawson Adit actually looks like a dungeon for naughty Cal students.

03/20/2014

Construction on the Central Subway Tunnel in San Francisco. (Photo by Anna Duckworth)

Tour Construction Inside San Francisco’s Central Subway Tunnel

KCBS’s Anna Duckworth took a tour of the tunneling taking place under San Francisco for the Central Subway project.

03/08/2014

Car going through the 4th bore of the Caldecott Tunnel just moments after opening to motorists on Saturday, November 16, 2013.

Caldecott Tunnel 3rd Bore, WB Hwy. 24 Closed Midnight to 5 A.M. Sunday

The third bore of the Caldecott Tunnel and part of westbound state Highway 24 near the tunnel in Oakland will close for several hours early Sunday morning to enable the removal of an old roadway sign.

03/01/2014

Car going through the 4th bore of the Caldecott Tunnel just moments after opening to motorists on Saturday, November 16, 2013.

4th Bore Of Caldecott Tunnel Opens To Motorists

The new westbound fourth bore of the Caldecott Tunnel in Orinda has officially opened to the public Saturday morning.

11/16/2013

Construction on the fourth bore of the Caldecott Tunnel. (MTC)

4th Bore Of Caldecott Tunnel To Open As Soon As Saturday Morning

The new fourth bore of the Caldecott Tunnel will open by Saturday morning, a Caltrans director said Friday.

11/15/2013

Construction on the fourth bore of the Caldecott Tunnel. (MTC)

Fire Safety Tests Underway Ahead Of New Caldecott Bore Opening

Fire safety drills were taking place in the Caldecott Tunnel’s new fourth bore Monday in preparation for the bore’s opening later this month.

11/11/2013

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