The seven-month dig was part of a $58 million wastewater treatment infrastructure project in Clackamas County.

China's largest shield tunneling machine cutter head, with a record-breaking diameter of 16.64 meters, descended at the construction site of the Haitai Yangtze River Tunnel in East China's Jiangsu ...

After centuries of speculation, archaeologists in Peru have confirmed the existence of an underground tunnel network, thought to have been built by the Incas. The groundbreaking discovery was ...

Diego Delso, CC BY-SA 4.0, via Wikimedia Commons It’s long been rumored that a network of old, underground tunnels lies beneath Cusco, Peru, the capital of the ancient Incan empire. Now ...

Getty Images/Pedro H. Tesch Coming off a victory over Internacional last week, Mexico visit River Plate at the Estadio Monumental in Buenos Aires, Argentina, to put an end to their adventure in ...

Using ground-penetrating radar and laser scanning, researchers from the Polytechnic University of Milan have uncovered hidden tunnels beneath the 15th-century castle that have been the subject of ...

Trains can pass at much higher speeds in the undersea tunnel than Kolkata Metro's under-river tunnel, he added. Railway Minister Vaishnaw said the completion of the High-Speed Rail route ...

The Sforza Castle in Milan is steeped in legends, particularly surrounding secret tunnels. These tunnels were likely used by the powerful Duke Ludovico il Moro for various purposes, such as ...

A National Guard agent inspects an illegal tunnel bound to El Paso in US, at the Mexico-US border in Ciudad Juarez (Picture: AFP) A secret 1,000ft-long ‘narco’ underpass between Mexico and the ...

Vaishnaw emphasised the advanced technology and engineering of the tunnel, enabling trains to reach speeds of 250 kmph, surpassing the capabilities of other under-river tunnels. He assured that ...