Metropolitan Area Outer Underground Discharge Channel

File:Geofront Temple^ 首都圏外郭放水路 - panoramio.jpg

Pressure control water tank

The Template:Nihongo, popularly known as G-Cans, is an underground water infrastructure project in Kasukabe, Saitama, Japan. It is the world's largest underground flood water diversion facility, built to mitigate overflowing of the city's major waterways and rivers during rain and typhoon seasons.<ref>Template:Cite magazine</ref> It is located between Showa and Kasukabe in Saitama prefecture, on the outskirts of the city of Tokyo in the Greater Tokyo Area.

Work on the project started in 1992 and was completed by early 2006.<ref>Template:Cite news</ref><ref name="amusing-planet">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It consists of five concrete containment silos with heights of Template:Convert and diameters of Template:Convert, connected by Template:Convert of tunnels, Template:Convert beneath the surface, as well as a large water tank with a height of Template:Convert, with a length of Template:Convert, with a width of Template:Convert, and with fifty-nine massive pillars connected to seventy-eight Template:Convert pumps that can pump up to Template:Convert of water into the Edo River per second.<ref name="water-technology">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

File:Control room of the Metropolitan Area Outer Underground Discharge Channel - 2008 (cropped).jpg

Central control room (pictured in 2008)

G-Cans

G-Cans, originally G-CANS PROJECT,<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> is the name of a civic group<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> whose goal is to "transform the area surrounding the Metropolitan Area Outer Underground Discharge Channel and the Shōwa Drainage Pump Station into a new cultural and community hub, utilizing these regional resources to promote regional development"; "CANS" represents the idea that "anything can be done with the ideas and actionable proposals of us citizens".<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> While the term "G-Cans" is commonly used in English to refer to the Metropolitan Area Outer Underground Discharge Channel itself,<ref name="amusing-planet"/><ref name="water-technology"/> it originally refers to this specific civic initiative.

See also

• Tunnel and Reservoir Plan (in Chicago)
• Basilica Cistern (in Istanbul)
• Underground construction
• Stormwater
• Sewerage

External links

• Template:Official website (including photos) Template:In lang