May
Monday 21 January 2008 photo 1/3
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Here is something truly enormous, worthy of Japanese crazed super-scale imagination - vast caverns and otherworldly columns (looking like some kind of a temple) under Tokyo - an infrastructure "built for preventing overflow of the city's major waterways and rivers during rain and typhoon season". Brainchild of Japan Institute of Wastewater Engineering Technology (JIWET), this "sci-fi"-like installation consists of "five 32m diameter, 65m deep concrete containment silos, connected by 64 kilometers of tunnels 50 meters deep underground. The system is powered by 14000 horsepower turbines which can pump 200 tons of water a second into a nearby river."
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