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They are commonly referred to as G-Cans which is short for gesuikanaru o drainage canal. The underground rivers of Tokyo 東京の地下河川や運河の地図.
One of the largest flood tunnel and storage tank systems is found on the northern outskirts of Tokyo Japan.
Tokyo water drainage system. The utility of such a colossal drainage system is debated by some people. According to Tokyos Central Disaster Management Council if rainfall totaling 550 millimeters over three days hits Tokyo causing the Arakawa river in Kita Ward to overflow its banks then up. Japans-underground-drainage-system Located in Saitama prefecture on the outskirts of Tokyo city there lies worlds largest underground flood water diversion facility.
Known as the Metropolitan Area Outer Underground Discharge Channel it is about 50 metres in height and goes about 63kms in length. This ultimately helps keep folks in Tokyo safe from flooding too. Construction on G-Cans began in 1993 according to the useful English booklet and was completed in 2009 though the system was already in partial operation from the mid-2000s.
One of the largest flood tunnel and storage tank systems is found on the northern outskirts of Tokyo Japan. The Metropolitan Area Outer Underground Discharge Channel also known as the G-cans project commenced in 1993 and the project was fully completed in 2006 at a cost of US26bn. After heavy storms or typhoons flood water overflows from Tokyos major waterways and rivers here through a 39 miles long tunnel system before being pumped into.
Coming in at 254 meters tall 83 feet and 78 meters 255 feet wide and running 177 meters long 580 feet the massive underground system started construction in 1992 and is open for tourists. Below are some of the pictures of Tokyos Drainage System. The Largest in the World.
Fototerra Finaldarkworld had a bit more to say. To download of rain water the complex is equipped with a turbopump 59. Their total capacity of 14 thousand horsepower they can outrun the top 200 tons of water per second.
Ariake Water Reclamation Center is a separate sewage system water treatment facility. It is built in Tokyo maritime sub-city centers Clean Center. Its treatment area is part of the Sunamachi Treatment DistrictTokyo maritime sub-city center and surrounding areas.
Each silo can hold up to 13 million gallons of water and the entire system can clear up to 7000 cubic feet of water every second. Thats fast enough to drain an olympic swimming pool in 12. Japanese water drainage system.
January 17 2016 July 25 2020 Clark Parker. The underground rivers of Tokyo 東京の地下河川や運河の地図. Tokyo is a mostly urbanized region meaning there are a lack of natural spaces where rainfall can be absorbed into the ground.
This results in large amounts of water runoff which needs a massive sewer system to service the Tokyo area. The mega project took more than 17 years and sucked in more than 2 billion dollars worth of Yen. But now the robust system works very efficiently displacing water at rapid speed.
They are commonly referred to as G-Cans which is short for gesuikanaru o drainage canal. It is the biggest such canal in the world and the most awesome as well. Photo Explore the huge sewer system in Tokyo.
The drainage system was built 50 meters deep under a football field and park on the outskirts of TokyoWork started in 1992 completed in 2009. Photo 2 Explore the huge sewer system in Tokyo. The underground sewer system consists of 5 large concrete wells 65m high and 32m in diameter connected by a 64 km long tunnel system.
When you add it all up the complex features five massive shafts or tanks that are able to move water along a tunnel that stretches nearly four miles. Tokyo battles the elements. Tokyos battle with flooding stretches back through its history.
The city sits on a plain crossed by five rowdy river systems and dozens of individual rivers that naturally swell each season.