Eyewitness News got a rare look inside an underground portion of the Colorado River Aqueduct that runs through San Jacinto that was built almost 100 years ago entirely by hand.

The Fehmarnbelt tunnel may not have grabbed the popular imagination in the same way as the Channel Tunnel between Britain and France did more than 30 years ago, but this structure is just as ...

Hyderabad: After assessing the conditions inside the Srisailam Left Bank Canal tunnel with robots, the govt deployed a hydraulic autonomous sludge robot on Wednesday to assist with desiltation at ...