Bertha
Alaskan Way Viaduct demolition is complete
Bye forever, viaduct!
WSDOT digs up five-year-old tunnel onramp as opening day approaches
There’s a new onramp to the new tunnel—but it’s been here all along!
Here’s how State Route 99 will be redirected through the tunnel
The whole process will take about three weeks
Tunnel opening celebration is also a chance to say goodbye to the Viaduct
One last chance to walk, run, or ride this February
The Alaskan Way Viaduct will close forever on January 11
The long-awaited retirement of the doomed stretch of SR-99 has a date
The State Route 99 tunnel gets its stripes—and giant running stick figures
The tunnel could open this fall
Watch the layers of the new Seattle downtown tunnel fill in Bertha’s pit
A new WSDOT video shows how the roadway stacks up
Tour the SR 99 tunnel in two-minute drone video
Travel the tunnel’s two-mile span a couple of years early.
Bertha is officially completely dismantled
RIP forever, Bertha.
See Bertha’s disassembly inside the State Route 99 tunnel in new video
Nearly four months after completing its journey into the disassembly pit after digging the two-mile-long State Route 99 tunnel, tunnel-boring machine Bertha is half-dismantled.
Watch Bertha come apart in new WSDOT video
Sped up in a time-lapse video, it’s exciting—and a little satisfying—watching the machine come apart. Watch seven weeks of disassembly in one minute.
Bertha’s disassembly has begun: Watch the first piece leaving the pit
The tunnel-boring machine that dug the Alaskan Way Viaduct replacement tunnel has started coming apart.
Inside the Highway 99 tunnel’s safety engineering
We spoke with contractor HNTB about what will keep the State Route 99 Viaduct replacement tunnel safe from fires, floods, earthquakes, and pollution.
Bertha fully emerges into the disassembly pit
Bertha, the boring machine that drilled the Alaskan Way Viaduct replacement tunnel, has fully emerged from the tunnel into the disassembly pit.
Watch Bertha get its braces off in preparation for disassembly
Late Wednesday, crews finished removing wall braces standing between tunnel-boring machine Bertha and the disassembly pit.
Watch Bertha’s breakthrough highlights in a WSDOT video
In case you missed the big moment
Remembering broken promises about Bertha
We heard a lot of things about what would happen with the tunnel project—and a many of those stories didn’t come true.
Bertha finishes digging the Alaskan Way Viaduct replacement tunnel
After nearly four years, Bertha has finished digging SR 99 tunnel.
Watch Bertha break through
After more than three years of drilling, Bertha’s journey is coming to an end on Tuesday—and the big moment is being livestreamed.
Bertha is 127 feet from the finish line
Bertha won’t see daylight this week, but the tunnel boring machine is nearing the finish line.
Bertha could reach wall at end of tunneling route this week
WSDOT announced that Bertha, the boring machine drilling the SR 99 tunnel, was just 320 feet from the finish line.
See inside Bertha the tunnel boring machine
WSDOT gives an up-close and personal look inside Bertha in a new 360 video.
Bertha resumes tunneling after course correction
Bertha, the tunnel boring machine currently digging the State Route 99 tunnel, is back to work after an adjustment.
Bertha burrows into Zone 9 and under SR 99
Tunnels passing under tunnels, Seattle’s basement maze
Bertha’s back at work, check out the video
Working on Bertha is like scuba diving in air
Seattle traffic hitting limits
Get ready to share the ride even more
Wired labels 520 bridge majestic
Congratulations to WS DOT for being Most Buoyant
From jeers to cheers for Bertha
Bertha punched through as much criticism as rock in 2016
Bertha’s side effects clear arteries
What happens to SR99 affects its neighbors
Bertha now 70 percent done as 1,000th ring assembled
Watch two WSDOT videos to see what’s happening in Seattle’s basement
Bertha hits it’s deepest point underneath Seattle
The tunnel boring machine is now 60 percent done with her journey
WSDOT installing quake-resistant bridge
Bendable bridges could bounce back after a quake
Break out the balloons, Bertha crosses the mile mark
5,280 feet down, 3,990 feet to go
Here’s 5 Seattle-based costume ideas for Halloween
Forget superheros and zombies, spend Halloween as something much more Seattle-y
After quicker-than-expected break, Bertha is digging again
These days, Bertha seems to get going a lot faster than expected
Bertha now under Pike Place Market, halfway home
The tunnel boring machine is actually staying on schedule these days
Bertha now under The Showbox, 4,239 feet into journey
The tunnel boring machine is making good time these days
Bertha tunnels past the 4,000 foot mark under Seattle
Ever since she restarted, Bertha has been moving forward without many problems
Bertha overruns now $223M, tunnel opening pushed to 2019
As a reminder, Bertha was originally supposed to be surface in South Lake Union in October 2014 and the tunnel was supposed to open by the end of 2015.