Explore Tokyo’s subterranean storm drains

Christoffer Rudquist shoots the city’s formidable concrete flood defence system

Flooding is nothing new to Tokyo and its surrounding area, but with the region’s rapid urbanisation since the middle of the 20th century, the threat of catastrophic flooding has grown ever more severe. A typhoon in 1991, for example, flooded 100 square kilometres, over 30,000 homes and caused the deaths of 52 people.

With existing defences struggling and urban space at a premium, the government’s engineers looked underground. The result was the Metropolitan Area Outer Underground Discharge Channel, a series of vast concrete silos built between 1993 and 2006 that each drain five rivers – stretching from the Oootoshifurutone in Saitama prefecture, north of Tokyo, to the drainage pump station at the Edo River in the city itself – connected by a 6.3km long channel.

Tokyo Flood Defences
Photography: Christoffer Rudquist / Avaunt Magazine

The $3 billion project is the biggest storm drain in the world. Each silo is around 70 metres tall and 30 metres wide – large enough to fit the Statue of Liberty or a space shuttle inside.

Photographer Christoffer Rudquist went inside these colossal structures for the new issue of Avaunt Magazine, out on newsstands now. We take a peek at what he found…

[Via Avaunt]

Read next: Take a spin around Transylvania’s subterranean theme park

Latest

Latest

Share Tweet

Privacy Preference Center

Required Cookies & Technologies

Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions.

gdpr, woocommerce_cart_hash, woocommerce_items_in_cart, _wp_wocommerce_session, sucuri_cloudproxy_uuid_*

Site Customisation

Cookies and similar technologies are used to improve your experience, to do things like:

- remember your login, general, and regional preferences
- personalize content, search, recommendations, and offers

Without these technologies, things like personalised recommendations, your account preferences, or localisation may not work correctly.

wp-settings-*

Personalised Advertising

These technologies are used for things like:

- personalised ads
- to limit how many times you see an ad
- to understand usage via Google Analytics
- to understand how you got to our web properties
- to ensure that we understand the audience and can provide relevant ads

We do this with social media, marketing, and analytics partners (who may have their own information they’ve collected). Saying no will not stop you from seeing our ads, but it may make them less relevant or more repetitive.

_ga, _gid, gat,_gads,_fbp