Stockholm Drills Enormous Tunnel for Carbon
The boring machine operating in the Anneberg-Skanstull Cable Tunnel in Stockholm on May 24.
Photographer: Erika Gerdemark/Bloomberg
Deep below the Swedish capital, an ambitious tunneling project is bringing the city closer to going fully green.
In a narrow, humid tunnel about 200 feet below the streets of Stockholm, a drill longer than the city’s tallest skyscraper nibbles away at granite and gneiss. After more than three years, the 1,000-ton machine, named Elektra, is at the halfway point of its journey.
Moving at a steady pace of 70 meters (230 feet) a week, the hulking machine is inching across the Swedish capital, burrowing a subterranean channel that will enable the city to overhaul its aging electricity infrastructure and finally, fully go green.Deep below the Swedish capital, an ambitious tunneling project is bringing the city closer to going fully green.