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Bertha breakthrough preparations 0:56
Bertha breakthrough preparations
📺 TunnelTalk Extra • 👁️ 657 views
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The ULTIMATE look at Bertha’s breakthrough 3:00
The ULTIMATE look at Bertha’s breakthrough
📺 wsdot • 👁️ 324,093 views
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Bertha recovery shaft breakthrough 2:17
Bertha recovery shaft breakthrough
📺 TunnelTalk • 👁️ 15,289 views
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Big Bertha -- world's largest tunnel boring machine -- facing big Seattle challenge 2:04
Big Bertha -- world's largest tunnel boring machine -- facing big Seattle challenge
📺 CBS Evening News • 👁️ 293,697 views
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Time Lapse: Removing the braces for Bertha’s final push 0:51
Time Lapse: Removing the braces for Bertha’s final push
📺 wsdot • 👁️ 6,722 views
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Disassembling Bertha: A peek inside the SR 99 tunneling machine (May-June 2017) 0:54
Disassembling Bertha: A peek inside the SR 99 tunneling machine (May-June 2017)
📺 wsdot • 👁️ 11,667 views
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Seattle SR 99 Bertha 10-month time-lapse - frame per day - tunneling machine disassembly area 0:13
Seattle SR 99 Bertha 10-month time-lapse - frame per day - tunneling machine disassembly area
📺 Timelapse Fun • 👁️ 1,170 views
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A drone’s view of Bertha’s breakthrough 1:00
A drone’s view of Bertha’s breakthrough
📺 wsdot • 👁️ 95,214 views
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Bertha's cutterhead spins in Seattle 0:11
Bertha's cutterhead spins in Seattle
📺 wsdot • 👁️ 78,417 views
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Seattle SR99 recovery shaft breakthrough preparations 1:22
Seattle SR99 recovery shaft breakthrough preparations
📺 TunnelTalk • 👁️ 407 views
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Inside the SR 99 tunnel: A short look at Bertha’s disassembly 0:45
Inside the SR 99 tunnel: A short look at Bertha’s disassembly
📺 wsdot • 👁️ 13,166 views
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SR 99 Tunneling machine animation (2013) 1:31
SR 99 Tunneling machine animation (2013)
📺 wsdot • 👁️ 126,765 views
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Bertha 1:56
Bertha
📺 Joe Fryer • 👁️ 1,880 views
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The Giant Machine That Got Trapped Under a City for 2 Years 10:17
The Giant Machine That Got Trapped Under a City for 2 Years
📺 Steel Titans • 👁️ 70 views
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Bertha grinds into daylight 1:01
Bertha grinds into daylight
📺 The Seattle Times • 👁️ 26,406 views
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Bertha Breakthrough Preparations Information Guide

  1. About of Bertha Breakthrough Preparations
  2. Main Features
  3. History
  4. Detailed Analysis
  5. Summary

About of Bertha Breakthrough Preparations

Details Bertha breakthrough preparations News
Looking for the latest information on Bertha Breakthrough Preparations? We've compiled comprehensive data, records, and insights about Bertha Breakthrough Preparations.

Main Features

Full The ULTIMATE look at Bertha’s breakthrough Update
Explore the primary sources for Bertha Breakthrough Preparations.

History

Full Bertha recovery shaft breakthrough News
Stay updated on Bertha Breakthrough Preparations's latest milestones.

Time Lapse: Removing the braces for Bertha’s final push
Time Lapse: Removing the braces for Bertha’s final push
Disassembling Bertha: A peek inside the SR 99 tunneling machine (May-June 2017)
Disassembling Bertha: A peek inside the SR 99 tunneling machine (May-June 2017)
Seattle SR 99 Bertha 10-month time-lapse - frame per day - tunneling machine disassembly area
Seattle SR 99 Bertha 10-month time-lapse - frame per day - tunneling machine disassembly area
A drone’s view of Bertha’s breakthrough
A drone’s view of Bertha’s breakthrough
Bertha's cutterhead spins in Seattle
Bertha's cutterhead spins in Seattle
Seattle SR99 recovery shaft breakthrough preparations
Seattle SR99 recovery shaft breakthrough preparations
Inside the SR 99 tunnel: A short look at Bertha’s disassembly
Inside the SR 99 tunnel: A short look at Bertha’s disassembly
SR 99 Tunneling machine animation (2013)
SR 99 Tunneling machine animation (2013)
Bertha
Bertha
The Giant Machine That Got Trapped Under a City for 2 Years
The Giant Machine That Got Trapped Under a City for 2 Years
Bertha grinds into daylight
Bertha grinds into daylight

Detailed Analysis

Data is compiled from public records and verified media reports.

Last Updated: August 11, 2026

Summary

Big Bertha -- world's largest tunnel boring machine -- facing big Seattle challenge Update
For 2026, Bertha Breakthrough Preparations remains one of the most searched-for information profiles. Check back for the latest updates.

Disclaimer: Disclaimer: All information is compiled from publicly available data, media reports, and analysis. Actual details may vary.

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