Temporada 1 · Rizomas en Combustión · JVV-T1-22

Feral architectures: infrastructures made by abandonment

I The motorway that became a wetland

In 2009 an elevated stretch of the Seoul motorway falls out of use after the traffic is diverted. Nobody demolishes it; nobody maintains it. In four years it accumulates 22 centimetres of sediment over the asphalt and holds 38 plant species nobody planted.

It is not a park. It is an infrastructure that stopped obeying.

“Feral does not mean wild. It means it was domesticated and decided otherwise.”

II Anatomy of the feral

Tsing tracked the matsutake in forests razed by logging: a fungus that only appears where industry has already passed. It does not thrive despite the ruin. It thrives because of it.

Feral architecture works the same way. It needs two conditions and both are negative:

that the structure is too expensive to demolish
that it is too useless to maintain

Between those two costs opens the only urban space nobody administers.

III Table of conversions

Structure	Original function	Feral function	Years
cooling tower	dissipating 800 MW	a falcon colony	12
Atlantic bunker	coastal artillery	artificial reef	60
dry viaduct	40,000 vehicles/day	a wetland of 38 species	4
flooded mine	coal extraction	urban thermal reserve	30

The pattern: the feral function is always slower than the original. What abandonment produces is not disorder — it is another scale of time.

IV Antithesis: the ruin is not the same as the residue

There is a comfortable aesthetic of the ruin that confuses two things.

The residue is matter that found no destination: plastic, slag, tailings. It does nothing. It waits.

The feral is matter that found a destination nobody foresaw. It does something, and what it does is neither reversible nor plannable.

A landfill is not feral. A cooling tower with falcons is.

V Observation ritualsafe

01

Find a structure in your city that has been unused for years: a shed, a wall, some rails.
02

Watch it for ten minutes from the pavement, without going in.
03

Count how many organisms are using it right now — plants, birds, insects, people.
04

Write the number down.

From outside, with no access, touching nothing. The exercise is counting, and the figure tends to be uncomfortable: there is almost always more life there than in the park next door.

VI Risks

Celebrating the feral carries an obvious political trap: it turns abandonment into a virtue, and abandonment is almost always shared out unevenly.

Nobody leaves the infrastructure of the centre feral. What gets left is the periphery's, the district that lost the budget fight. What an urbanist calls spontaneous reappropriation, a resident calls we have been asking them to fix it for twelve years.

The feral describes a process. It does not excuse whoever caused it.

VII Coda

If infrastructure is measured by what it holds up, then a viaduct with 38 species on top is still infrastructure — it only changed tenant and speed.

And perhaps the only architecture that reaches the coming century will not be the one we conserve but the one so expensive to pull down that it has time to become something else.