Disassembling Bertha - The First Cutterhead Lift

Disassembling Bertha – the first cutterhead lift

Inside the SR 99 tunnel: A short look at Bertha’s disassembly

Disassembling Bertha: A peek inside the SR 99 tunneling machine (May-June 2017)

Building a tunnel inside Bertha’s disassembly pit

Hyperbaric work on TBM Bertha

TunnelTalk Extra

TBM Bertha repair update

TunnelTalk Extra

Inside the TBM Bertha hyperbaric chamber

TunnelTalk Extra

Seattle SR 99 Bertha 10-month time-lapse - frame per hour - tunneling machine disassembly area

Bye bye to TBM Bertha in Seattle

TunnelTalk Extra

TBM Bertha recovery shaft drive

Details of TBM Bertha's recovery lift and repair program

Time Lapse: Removing the braces for Bertha’s final push

Bringing Bertha to the surface

Bertha's cutterhead spins in Seattle

Bertha’s rise to the surface revisited

Alaskan Way SR99 Highway Tunnel Project, Seattle, USA, TBM Bertha repair plan - WSDOT Video Release

Mammoet - Details of TBM Bertha's recovery lift and repair program

Marine Salvage and Offshore

Bertha’s last moves

Bertha reaches daylight - Feb. 19, 2015

A drone’s view of Bertha’s breakthrough