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Article: http://www.bigempire.com/sake/g-cans_geo-site.html Video: http://tokyodv.com/videolog/tdv-reports/g-cans-discharge-management-project/ Anyone who has read Alex Kerrs Dogs and Demons knows that Japan is hopelessly addicted to concrete. The thinking within the government in recent years seems to be: when in doubt, just pour more. This project, devised to alleviate flooding risks within the Naka and Ayase River basins of southern Saitama Prefecture, is the concrete junkies equivalent to a dropper of heroin. With the local geography providing rainfall runoff in the area little place to go, the Metropolitan Area Outer Discharge Channel (promoted under the G-Cans Project name) is a yet-to-be-completed set of pumps and series of underground concrete channels totaling 6.3 km that are connected by massive down shafts acting as entry points for overflow from rivers in the region... Related: http://www.tokyoreporter.com/2008/06/30/tokyo-underground/