Dutch practice MVRDV has completed Seoullo 7017, a 983-metre botanical floating walkway, which utilizes a formerly abandoned highway in the center of the South Korean capital. Seoullo, the Korean name for Skygarden translates to ‘towards Seoul’ and ‘Seoul Street’, while 7017 marks the overpass’ construction year of 1970, and its new function as a public walkway in 2017. The pedestrianised viaduct next to Seoul‘s main station is the next step towards making the city and especially the central station district, greener, friendlier and more attractive, whilst connecting all patches of green in the wider area.
In central Seoul, a true plant village has been realised on a former inner city highway in an ever-changing urban area accommodating the biggest variety of Korean plant species and transforming it into a public 983-metre long park gathering 50 families of plants including trees, shrubs and flowers displayed in 645 tree pots, collecting around 228 species and sub-species. In total, the park will include 24,000 plants (trees, shrubs and flowers) that are newly planted many of which will grow to their final heights in the next decade.
Since the project was won by MVRDV in May 2015, the main challenge of the Skygarden has been to transform the existing overpass into a public garden, overlaying a matrix of Korean flora onto the 16m elevated steel and concrete structure. How to transform a 1970’s highway into a Skygarden and how to change the daily life of thousands of people who cross Seoul’s city centre every day? From the start, MVRDV engaged with this need to change the forgotten and existing infrastructure into a green symbol that will become a catalyst for a greener quarter for Seoul. Together with the municipality, local NGO’s, landscape teams and city advisers are committed to accommodating the biggest diversity of flora into a strictly urban condition. New bridges and stairs connect the viaduct with hotels, shops and gardens.
The linear park was designed as a collection of small gardens, each one with its very own composition, perfume, colour and identity. The landscape will change according to the seasons: the bright colours of leaves in autumn of the Aceraceae family (maples), the blossom of cherry trees and rhododendron in spring, the evergreen conifers trees in winter and shrubs and trees bearing fruit in summer.
In the future, Seoullo will evolve with new plants and new activators so as to become an ‘urban nursery’, rearing trees for the surrounding districts. Additional structures of stairs, lifts and escalators as well as new ‘satellite’ gardens, can connect to the Skygarden, sprouting like branches from the existing structural piers. These extensions can inspire further additions to the area’s greenery and public spaces, and will connect the Skygarden to its surroundings both physically and visually through plant species related to each of the neighbourhoods.
These contribute to enhancing the experience of users, boosting the park with activities that engage the city on a cultural and commercial level. Small mobile pots are added for seeds and plants that can be used afterwards in the bigger pots. A living nursery. Multiple stairs, lifts, bridges and escalators connect the city to the new park, rebounding it to the adjacent urban fabric. At night, the Skygarden is illuminated in blue lights in contrast to the bright city lights as the colour is friendly to nature. During festivals and celebrations, different colours can also be changed.
all images © Ossip van Duivenbode