How does Metropolitan Area Outer Underground Discharge Channel?
The Metropolitan Area Outer Underground Discharge Channel is one of the world’s largest underground discharge channels, which takes water overflow underground from small-to mid-size rivers such as the Naka, Kuramatsu, and Oootoshifurutone and directs it to the Edogawa River through a 6.3-kilometer long tunnel that runs …
Who built the Metropolitan Area Outer Underground Discharge Channel?
Construction work for the $2bn G-Cans project started in 1992 and was completed in early 2009. The project was undertaken by the Japanese Government, guided by the Japan Institute of Wastewater Engineering Technology. The facility is capable of withstanding a once-in-200 years flood.
When was the Metropolitan Area Outer Underground Discharge Channel built?
The official name of the tank and tunnel system is the Metropolitan Outer Area Underground Discharge Channel. This concrete tunnel system running 50 meters deep and 6.5 kilometers long, it’s also known as the G-Can Project or “The Underground Tunnel.” This feat of modern engineering was built from 1992 to 2006.
Does Tokyo have underground?
Tokyo underground networks Japan is renowned for its comprehensive and efficient train network – and its underground trains are no different. Covering the whole city with more than 280 stations, Tokyo subway lines will help you get to almost any destination quickly and easily.
What are the Tokyo flood tunnels?
The floodwater cathedral hidden 22 meters underground is part of the Metropolitan Area Outer Underground Discharge Channel (MAOUDC), a 6.3 km long system of tunnels and towering cylindrical chambers that protect North Tokyo from flooding.
How do Tokyo flood tunnels work?
The tunnel, dug about 50 meters below ground, extends 6.3 km in total. The discharge channel is a mechanism to drain water from flooded residential areas into five gigantic vertical shafts built below ground and then discharge it into rivers through an underground tunnel connecting the shafts.
Is there an underground city in Japan?
Just beneath the main station in Osaka (NOT the shinkansen) is this huge complex. It hosts metro and JR trains station, it has a system of underground streets, along with hundreds of restaurants, bars, shops,….
When was the Metropolitan outer area underground discharge channel built?
The official name of the tank and tunnel system is the Metropolitan Outer Area Underground Discharge Channel. This concrete tunnel system running 50 meters deep and 6.5 kilometers long, it’s also known as the G-Can Project or “The Underground Tunnel.” This feat of modern engineering was built from 1992 to 2006.
Where is the underground discharge channel in Tokyo?
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.
Where is the world’s largest underground flood diversion facility?
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. It is located between Showa in Tokyo and Kasukabe in Saitama prefecture, on the outskirts of the city of Tokyo in the Greater Tokyo Area, Japan.