LINDA DENG
02 / 2022Architecture / Computation / Ecology

The Proxy
Landscape

Water is a shapeless medium that becomes legible through the landscapes, infrastructures, and bodies that direct it.

Type
Collaborative research and design project
Site
Jamaica Bay, New York
Focus
Watersheds · salt-marsh repair · low-tech machines
Map of the spontaneous watershed across Jamaica Bay
Spontaneous watershed — water follows gravity, wind, terrain, and changing ground conditions.
Map of the unspontaneous watershed across Jamaica Bay
Unspontaneous watershed — water is captured, stored, redirected, and discharged by urban infrastructure.
RESEARCH QUESTION

Can water reveal—and help repair—the hybrid urban landscape?

Jamaica Bay is a coastal environment shaped by both tidal ecologies and metropolitan infrastructure. The project treats water as a proxy: as it moves through pipes, streets, soil, wetlands, and bodies, it makes each of these conditions visible. Rather than proposing a single protective object, The Proxy Landscape develops a distributed set of low-tech machines that identify where water systems meet, then work with those intersections to reduce pollution, erosion, and salt-marsh loss.

01 / COASTAL CONDITION

Salt marshes are an urban ecological boundary.

Salt marshes form where land, barrier islands, tides, and sediment create protected coastal basins. They also coexist with highly urbanized territories. The research begins by locating Jamaica Bay within this broader condition: a productive estuary whose wetlands are continually altered by development, dredging, sea-level rise, and contaminated runoff.

Diagram locating salt marsh conditions around the world and Jamaica Bay
Salt-marsh context — comparable coastal conditions connect Jamaica Bay to a wider geography of urbanized estuaries.
02 / TWO WATERSHEDS

Water moves with, and against, human intention.

The project distinguishes spontaneous water from unspontaneous water. Spontaneous water follows gravity, wind, topography, and ground conditions. Unspontaneous water is captured, accelerated, held back, pumped, and discharged by human infrastructure. Their intersection is not a clean boundary: it is where combined sewer outfalls, landfills, runoff, marsh soils, and tidal flows produce the most contested landscapes.

Landfill and wetland sinks within the spontaneous watershed
Spontaneous sinks — landfill and wetland conditions absorb, filter, and redirect water through material and soil.
Catch basin and green infrastructure within the unspontaneous watershed
Unspontaneous sinks — catch basins and green infrastructure collect and control urban runoff.
Diagram comparing spontaneous and unspontaneous watershed sinks
Watershed sinks — human-controlled collection and free-moving water create distinct but entangled landscape effects.
Axonometric study of the hybrid watershed system
Hybrid axon — urban collection, treatment, outfall, landfill, and marsh are read as one linked water system.
03 / INDEXING JAMAICA BAY

Maps turn flow into evidence.

Mapping connects regional marsh degradation to specific conditions in Jamaica Bay. The regional drawing traces historical loss, topography, and water movement; the site-scale drawing identifies catch basins, contaminated land, CSO outfalls, shoreline conditions, and animal habitat. Together, they locate the sites where intervention can be both ecological and publicly legible.

Regional map of Jamaica Bay and salt marsh conditions
Regional index — water, terrain, marsh distribution, and historical degradation.
Detailed site map of Jamaica Bay water systems
Site index — the overlapping water systems identify conditions for six situated machines.
04 / THREE BOUNDARY CONDITIONS

Each intersection produces a different problem.

Three locations translate the mapping into localized evidence. At Spring Creek, CSO discharge mixes infrastructure-driven water with marsh processes. At Broad Channel, dredging and tidal energy intensify erosion. At West Pond, living-shoreline strategies reveal the fragile relation between sediment, water, vegetation, and public access.

Spring Creek boundary analysis
Spring Creek — pollution and altered above- and below-ground watersheds.
Broad Channel boundary analysis
Broad Channel — wave energy, dredging, and tidal flooding.
West Pond boundary analysis
West Pond — erosion control and the vulnerable water–soil edge.
05 / HYBRID WATERSHED MACHINES

Six forms of restorative landscape labour.

The machines are deliberately small, low-tech, and theatrical. They filter, catch, lift, mix, and attenuate water through human, wind, wave, and tidal power. Each is both an architectural object and a technical instrument; together they form a chain reaction across the bay rather than a centralized engineering solution.

01 / Purifier watershed machine
01 / Purifier — Roof runoff is filtered through a visible, body-powered circulation system.
02 / Barrier watershed machine
02 / Barrier — Porous root-like modules slow waves, retain sediment, and reform the marsh edge.
03 / Splashing Pump watershed machine
03 / Splashing Pump — A seesaw relocates sediment from mud flats to vulnerable low marsh.
04 / Treadmill watershed machine
04 / Treadmill — Walking and wave energy carry sediment toward the marsh as sea level rises.
05 / Mixer watershed machine
05 / Mixer — Human and wind power mix oxygen and nutrients through a floating algae system.
06 / Wave Attenuator watershed machine
06 / Wave Attenuator — Linked floating islands reduce wave energy while forming habitat for plants, birds, and people.
06 / A CONNECTED RESTORATIVE LANDSCAPE

Machines make a route through changing water conditions.

At the larger scale, the six machines are positioned along a journey from urban material to water, marsh, soil, and shared habitat. Their value is cumulative: runoff is filtered upstream; sediment is moved and retained; wave energy is reduced; and the edge becomes a place where people can observe, participate in, and care for ecological change.

Sectional proposal for hybrid watershed machines in Jamaica Bay
System overview — a chain of small machines works across urban runoff, marsh, and open water.
Spring Creek design outcome
01 — Filtering and recovery at the urban–marsh interface.
Broad Channel design outcome
02 — Sediment movement and wave-energy moderation.
West Pond design outcome
03 — A living shoreline that restores the water–soil boundary.
REFLECTION

Restoration as participation, not extraction.

These machines do not claim to replace large-scale coastal engineering. They make environmental processes accessible at a human scale and transform maintenance into a shared public experience.

The proposal is speculative, but its central question remains practical: how might small, distributed interventions reveal the costs of urban water systems while helping coastal landscapes adapt?

Mixer machine operating within the salt marsh during rainfall
05 / Mixer — wind and human movement animate a shared marsh platform.
Purifier machine collecting and filtering neighborhood runoff
01 / Purifier — a visible collection route connects the street to the water system.
Wave attenuator machines and public activity across Jamaica Bay at sunset
06 / Wave Attenuator — linked floating habitats create a shared edge between city, water, and marsh.
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