MAD Architects has completed the restoration of the Japan's historic Kiyotsu Gorge Tunnel in Niigata prefecture. “Tunnel of Light” is a permanent art installation with the intention of bringing back the cultural energy that once had the region.
The renovatio of “Tunnel of Light” by MAD Architects, opened coinciding with the 2018 Echigo-Tsumari Triennale.

The art event hosts approximately 160 artworks across 200 villages, inhabiting abandoned spaces as sites for interaction. The 750-meter long passageway cuts through rock formations to offer visitors panoramic views of Japan's mountainous snow country and one of Japan’s three great chasms.
 
“Tunnel of Light” is an artistic transformation that demonstrates how art and nature can come together to reinvigorate a community.
 
Located in the heart of Japan’s snow country, Echigo-Tsumari is home to mountainous terrain and a satoyama which is an agricultural expanse, where traditional ways of farming are still being practiced. While rich in nature, the region has slowly been suffering from an aging and decreasing population – a serious phenomenon that has seen many of the young, rural people moving to the big cities for work or education opportunities. This has left the elderly (65+ years) accounting for 37% of the community, while the average level in Japan is 27.7%.

Drawing on the ‘five elements’ of nature (wood, earth, metal, fire, water), MAD’s scheme transforms points along the historic tunnel through the realization of several architectural spaces and artistic atmospheres. The designs rethink the relationship between humans and nature, and seek to re-connect locals and visitors alike with the majestic beauty of the land.

“Periscope” (wood)

Upon the approach to the tunnel, a small wooden ‘hut’ has been erected that serves as the café, souvenir shop (with locally made crafts) on the ground floor. Inside the pitched cedar roof on the upper level, is a hot spring foot spa. A circular aperture – the “Periscope” – in the ceiling opens up towards the roof. Encircled by mirrored lenses that reflect the nature of the surrounding site inwards, the subtle intervention gives visitors the opportunity to enjoy the natural scenery outdoors, while they have a foot bath and relax within the warmth of the wooden interior.

“Expression of Color” (earth)

The entrance to the tunnel has been restored to its former glory, and leads the way to the newly renovated passage. Originally illuminated through natural means, it has been outfitted with a series of different coloured lights which define each lookout point along the tunnel. Captured as “The Expression” of the space, their vibrancy, in combination with mysterious music, sets a subtle but dynamic ambiance that sparks a certain curiosity of the unknown for those who are wandering through. 

“Invisible Bubble” (metal)

The first of the lookout point renovations is the “Invisible Bubble”. As if landing from another world, the capsule-like structure gently mirrors the silhouette of the tunnel itself, while reflecting its surroundings. Functioning as a toilet, the wall which faces towards the gorge is transparent. This exterior window is covered in a metallic film that only allows one-way views from the inside out, playing with the notion of public and private. Providing a quiet escape, a place of solitude, it is an intimate space that finds itself in an openly public setting. It puts into question how people react when they think that no one is watching – an ideal corner of contemplation.

“The Drop” (fire)

‘Dew drops’ are scattered along the curvature of the second lookout point. “The Drop” is a series of reflective openings that are like windows of uncertainty. While they project a reality by mirroring the natural environment, they also appear surreal, like molecules of water, they are suspended from the ceiling and walls, frozen in time. As one looks into these convex mirrors, backlit by fiery, red light, they experience an alternative connection with nature – one that is at once mysterious and warm.

“Light Cave” (water)

The culmination of the restoration is expressed in the form of the “Light Cave”. Semi-polished stainless steel lines the tunnel, drawing the distinct rock formations, lush greenery, and turquoise water of the treasured terrain, into the enclosed space. A shallow pool of water gently ripples with the breeze of the wind. In turn, the images of the gorge reflected from the cave cast themselves onto the water – an infinite illusion of nature. The essence of the “Light Cave” brings both a lightness and stillness into the once dark, dewy tunnel, invoking a feeling of everlasting solitude.

More information

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Design Team
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Ma Yansong, Yosuke Hayano, Dang Qun, Hiroki Fujino, Kazushi Miyamoto, Yuki Ishigami
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Executive Architect
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Green sigma Co., Ltd.
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MAD Office, Beijing, China. MAD is a Beijing-based architecture design office dedicated to creating innovative projects. The firm combines a sophisticated design philosophy with advanced technology in addressing and furthering issues in contemporary architecture and urbanity.

The firm has been the recipient of numerous awards including the 2006 Architectural League of New York's Young Architects Forum Award.

MAD's ongoing projects include the international competition-winning Absolute Tower in Toronto, Canada; The Tianjin Sinosteel International Plaza, a 320M tall tower in Tianjin, China; the Mongolian Museum in Inner Mongolia, China, and a private villa in Copenhagen, Denmark.

The firm has also won numerous international design competitions, including the 2006 Absolute Tower Competition in Toronto; the 2005 Solar Plaza Competition in Guangzhou, China, and the 2004 Shanghai National Software Outsourcing Base.

MAD's work has been published worldwide, and the office has also presented its designs in a series of exhibitions. In 2006, MAD was shown at the ‘MAD in China' exhibition in Venice during the Architecture Biennial, and the ‘MAD Under Construction' exhibition at the Tokyo Gallery in Beijing. In March of 2007, MAD will be shown at ‘MAD.exe' an exhibition at the Danish Architecture Centre in Copenhagen, Denmark.

Ma Yansong, Yosuke Hayano and Qun Dand.

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Published on: August 8, 2018
Cite: " “Tunnel of Light”. MAD restores the Kiyotsu Gorge Tunnel for Japan's 2018 Echigo-Tsumari Triennale" METALOCUS. Accessed
<http://www.metalocus.es/en/news/tunnel-light-mad-restores-kiyotsu-gorge-tunnel-japans-2018-echigo-tsumari-triennale> ISSN 1139-6415
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