Video of Seattle Tunnel Partners rotating Bertha's cutterhead wsdot 0:44 9 years ago 65 797 Далее Скачать
Seattle's Big Bertha tunnel drill blocked by mystery object CBS Mornings 2:21 11 years ago 1 450 094 Далее Скачать
World's most expensive breakdown? Bertha got stuck for a year under Seattle after digging 1,000ft BNews 0:51 9 years ago 988 Далее Скачать
Lowering the SR 99 tunneling machine’s front end back into the access pit wsdot 1:03 9 years ago 15 136 Далее Скачать
The Mystery Buried Beneath Seattle- What Is It? Susan Duclos (All News PipeLine) 1:17 11 years ago 115 777 Далее Скачать
Seattle Tunnel Partners' work plan for repairing Bertha with narration wsdot 6:44 10 years ago 83 298 Далее Скачать
Seattle SR 99 Bertha 10-month time-lapse - frame per hour - tunneling machine disassembly area Timelapse Fun 5:00 6 years ago 1 097 Далее Скачать
