The first four tunnel boring machines are coming to New Jersey to build the Gateway rail tunnel. Here's what they do and why they're the safest method.
Disassembled sections of two tunnel boring machines that will help dig a $16 billion rail tunnel between North Jersey and Manhattan are on their way to the Garden State. The German-made machines were ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback