It's a microtunneling operation that involves state-of-the-art technology. It looks like a jet engine, but it's actually an 11-ton microtunneling machine.

It was the longest microtunneling project in the United States by tunneling 25 feet below the bottom of Lake Erie’s shale and clay for a total of almost 4,000-feet for the 60-inch pipe.

Pune: Microtunneling work has started at the Pune railway station to perevent waterlogging on its premises during the upcoming monsoon. Rs3 crore was sanctioned for the project, said an official ...