Mega Lift Required Precision for Bertha TBM

Just getting Bertha, the continent’s largest-ever tunnel-boring machine, into place to dig the new State Route 99 tunnel underneath downtown Seattle proved quite the task. Take a look at my Engineering News-Record story about Barnhart moving Bertha into place here.

Advertisements

Comment here

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s