[VIDEO] Watch Workers Change Cutting Teeth on Seattle Tunneling Machine Bertha

This July 2016 video shows crews from Seattle Tunnel Partners performing routine maintenance on Bertha, the SR 99 tunneling machine. This work must be completed in hyperbaric conditions similar to those found in an underwater dive.

Jul 13, 2016

This July 2016 video shows crews from Seattle Tunnel Partners performing routine maintenance on Bertha, the SR 99 tunneling machine. Crews must regularly inspect and replace the tools that scrape away at the earth in front of the machine. This work must be completed in hyperbaric conditions similar to those found in an underwater dive.

Latest in Video Network
Af7 Pz Xh A 720
Asphalt Industry Reacts To LeeBoy, FAYAT Deal
June 26, 2025
Nel S2 E8 Thumb Episode 4
What SEISMIC Does For Asphalt | No Edge Lines Season 2 Episode 7
April 30, 2025
Volvo Benefit Articulated Hauler A50j Reinforced Axles 2324x1200
More Payload, Same Reliability
April 9, 2025
Northside Tool Rental Doraville Store
How a Storied U.S. Rental Business Found New Revenue
March 18, 2025
Related Stories
[VIDEO] Watch How 14,260 Concrete Segments were Made for Seattle Tunnel's Outer Wall
Video Network
[VIDEO] Watch How 14,260 Concrete Segments were Made for Seattle Tunnel's Outer Wall
[VIDEO] Drone Flies Through Seattle's SR 99 Tunnel Bertha is Digging
Video Network
[VIDEO] Drone Flies Through Seattle's SR 99 Tunnel Bertha is Digging
Crews worked Monday, Aug. 24, 2015 to begin one of four crane operations to lower Bertha's cutter head and drive unit back into the ground. Once the giant tunnel boring machine is back together and tested, it will start tunneling again Nov. 23, nearly two years after it stopped 1,000 feet into the nearly two-mile tunnel project. This wide shot shows the giant 'super crane' used to first pull the 4-million-pound cutter head out of the ground and now to lower it back in.
Business
Bertha Cutter Head Going Back Underground for Seattle Tunnel Digging
[VIDEO] How Skanska Coordinated the New York Wheel's 4,000-yd Concrete Pour
Video Network
[VIDEO] How Skanska Coordinated the New York Wheel's 4,000-yd Concrete Pour
More in Video Network
Asphalt
Asphalt Industry Reacts To LeeBoy, FAYAT Deal
Fayat Group
A brief discussion about the pros and cons of the FAYAT Group's plan to purchase LeeBoy.
Af7 Pz Xh A 720
Tandem Rollers
What SEISMIC Does For Asphalt | No Edge Lines Season 2 Episode 7
Dynapac North America LLC
Does size matter? It's an age-old question, and for commercial asphalt contractors looking at rollers, it can make a world of difference.
Nel S2 E8 Thumb Episode 4
Earthmoving Equipment
More Payload, Same Reliability
Volvo Construction Equipment
Discover how the newest hauler builds on Volvo Construction Equipment’s legacy of strength and durability while also pushing the category forward.
Volvo Benefit Articulated Hauler A50j Reinforced Axles 2324x1200
Rental Business
How a Storied U.S. Rental Business Found New Revenue
Northside Tool Rental
Sure, rental businesses can power forklifts, heaters and grinders with propane. They can also use it to boost walk-in revenue. Here's how.
Northside Tool Rental Doraville Store
Milling
Caterpillar Debuts Cold Planers at World of Asphalt
Caterpillar - Cat
Caterpillar's David Peterson details what's new on the PM622 and what that “622” name means. Hint: it’s all about power, performance, comfort and safety.
Caterpillar Pm822 Cold Planer 5d85070ef2126
Material Processing & Debris Handling
Enhancing the 1200 CC
Eagle Crusher Co. Inc.
Built on more than two decades of reliability and performance, the 1200 closed circuit crushing plant is rolling out new features to make operations even better.
Eagle Crusher 1200 Cc Side View 2000x1000px Cmyk 300dpi 67b39d75b8117
Paving
Built for the Road
BOMAG Americas Inc.
Meet BOMAG’s highway-class powerhouses: the CR 1030 T and CR 820 T.
Bomag Img 6107 67e329d01271c
Paving
Solutions for Every Size Patching Job
Crafco, Inc.
Crafco's Kevin Owens, territory manager, highlights the features that make the Patcher II and EZ Patcher go-to machines for customers during World of Asphalt.
Crafco Image 17 6604816726597 67b39616d8316
Paving
A New Generation of Roller Couplings From Regal Rexnord
Regal Rexnord Corporation
Regal Rexnord's Business Development Manager Mark Johns and Sales Director Jon Siverling discuss how the CENTAFLEX-TIR and the company’s full portfolio are supporting the needs of today’s aggregate and asphalt pros.
Stockr Adobe Stock 95426986 67e19464ced82
Paving
Take A Walk Around Astec's Booth at World of Asphalt
Astec Industries Inc.
Astec's Jaco Van De Merwe showcases what the company has on display at World of Asphalt this year.
Astec Woa 66042e347c077 67b38a6f46594
Concrete Equipment & Products
Concrete Construction For Beginners | No Edge Lines Season 2 Episode 6
Ace Avant
The editor of Asphalt Contractor magazine, Brandon Noel, steps way out of his comfort zone and into a giant concrete pour. The crew at Ace Avant in North Carolina put him through the paces of any rookie's first day on the job.
Episode 4b
Power
The Key to the Future of Power Generation
ANA Inc.
Hybrid charging solutions powered by propane allow jobsites to not only store and transport energy easily and efficiently, but also allow for a path to zero emissions, especially when paired with renewable propane sources.
Perc
Page 1 of 394
Next Page