$1.5B London Tunnel Team Saves Time Using ‘Air Skates’ for Boring Machine U-Turn
Cross passages between both bores of London’s 0.7-mile Silvertown tunnel are nearing completion, marking the end of excavations on the River Thames crossing.
Cross passages between both bores of London’s 0.7-mile Silvertown tunnel are nearing completion, marking the end of excavations on the River Thames crossing.