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The Today File

Your guide to the latest news from around the Northwest

Topic: Highway 99 tunnel

You are viewing the most recent posts on this topic.

October 23, 2014 at 7:44 AM

A real scoop: excavation under way at Bertha’s repair pit

Crews had dug down nearly 20 feet as of Wednesday afternoon, as they make a 120-foot-deep vault where tunnel machine Bertha’s front end can be cut open for repairs. Digging started late last week and will continue through November, until about 20,000 cubic yards of soil is removed from within a deep concrete ring that was built this…

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Comments | More in Traffic & Transit | Topics: bertha, Highway 99 tunnel

September 18, 2014 at 11:44 AM

Seattle tunnel tops U.S. green group’s ‘boondoggle’ list

The Highway 99 tunnel tops a new list of 11 “highway boondoggles” that shouldn’t be built, in a report issued Thursday by the U.S. Public Interest Research Group (PIRG). The report, called “Highway Boondoggles: Wasted Money and America’s Transportation Future,” argues that America’s six-decade “Driving Boom” has passed its prime, and miles traveled will gradually…

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Comments | Topics: Highway 99 tunnel, Phineas Baxandall, US PIRG

September 8, 2014 at 5:10 PM

Bertha burrows ahead 3 feet

Tunnel-boring machine Bertha dug forward three feet Thursday and Friday, to get ready for fall repairs, the state Department of Transportation said Monday. “We were just pleased we were able to move three feet, after it sat so long,” said Chris Dixon, executive director of contractor Seattle Tunnel Partners, in a phone interview Monday. The giant drill’s cutter…

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Comments | More in General news, Traffic & Transit | Topics: bertha, Highway 99 tunnel, tunnel

August 28, 2014 at 4:17 PM

Bertha’s rescue pit almost done

Seattle Tunnel Partners will pour its final concrete pillar next week to complete an access pit along the waterfront, so the front end of stuck Highway 99 tunnel machine Bertha can be extracted and repaired. Workers from Malcolm Drilling are building a ring of 73 pillars, some 120 feet deep, near the foot of South Main Street….

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Comments | Topics: bertha, Chris Dixon, Highway 99 tunnel

July 26, 2014 at 5:01 PM

Bertha’s repair pit hitting some slowdowns

  This fall’s hoist of the damaged, 2,000-ton front end of the tunnel boring machine Bertha will happen a bit later than planned, because workers are having difficulty digging a 120-foot deep retrieval shaft just ahead of the big drill. The state Transportation Department hasn’t released details of the problem, but is expected to do so within the next…

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Comments | More in Traffic & Transit | Topics: bertha, Highway 99 tunnel, Sarnia

July 24, 2014 at 10:05 AM

Early warning: 4 days of Highway 99 closures in August

Portions of Highway 99 in central Seattle will close in late August for two days of repairs in Sodo and a four-day bridge removal near Seattle Center. The work starts late Friday, Aug. 22 and wraps up at 5 a.m. Wednesday, Aug. 27. The state’s project homepage is here. The plan: An overpass where Aurora Avenue North…

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Comments | More in Traffic & Transit | Topics: Highway 99 tunnel, Mercer Corridor Project, Traffic

June 16, 2014 at 3:29 PM

Bertha’s bulking up for the 2015 drilling season

Hitachi-Zosen has decided to add 86 tons of steel ribs and plates to stranded tunnel-boring machine Bertha, in hopes of making it more stout when drilling resumes next year. Highway 99 contractor Seattle Tunnel Partners announced today that its repair plan includes 216 steel pieces. Some will reinforce the bearing block, which surrounds the rotating drive system, and…

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Comments | Topics: bertha, Highway 99 tunnel

May 15, 2014 at 5:57 PM

Bertha’s repair pit now under construction

Crews this week began building a repair pit next to stranded tunnel-boring machine Bertha, while the state released new images of how the front end would be lifted out this fall.  A Washington State Department of Transportation pit-cam is webcasting the work. A WSDOT update this week unveiled some conceptual strategies that are either…

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Comments | Topics: bertha, Highway 99 tunnel, Seattle Tunnel Partners

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