Bertha Launch Pits Become Tunnels
ENR Northwest » The launch and exit pits created for tunnel-boring machine [...]
State, federal grants awarded to improve public transportation across state
NBC Right Now » Approximately $230 million in newly awarded state and [...]
Video: After 4 years, digging of Seattle tunnel nears its end
KIRO7 » Tunnel-borer Bertha may complete drilling the State Route 99 tunnel [...]
Video: Bertha’s journey under the streets of Seattle
The Seattle Times » A 360-degree video shot inside the tunnel [...]
Bertha veers a few inches off course, stops digging
The Seattle Times » The massive drill has veered a few [...]
Infographic: Engineering failures spur engineering, construction advances
Compact Equipment » Although any disaster is tragic, engineering failures, such [...]