Pittsburgh Water has been working on upgrading the sewers throughout Pittsburgh’s South Side. On Wharton Street, they used a ...

After all, damaging underground ... structures and pipes carefully, or as they dig around existing utilities, thus ensuring it’s a highly manageable and predictable machine as well.

Instead, it’s a “micro-tunnelling boring machine” stuck underground for nine months after accidentally ... for Earth Boring Co., the subcontractor doing the work. The sewer pipe is smaller than the ...

Explore the engineering marvel that is Martina, the world’s largest tunnel boring machine, and its incredible capabilities. Watch as this giant TBM digs through complex geological layers ...