Mill 19 | Pittsburgh, USA | TEN x TEN

By Damian Holmes, World Landscape Architecture

Published October 1, 2024

Mill 19 sits at the heart of Hazelwood Green, Pittsburgh’s largest riverfront development. Nestled between the Monongahela River and the Hazelwood community, Mill 19 is the catalytic transformation of the former Pittsburgh J&L Steel Company into a sustainable advanced manufacturing research center enveloped by an immersive public landscape.

The project celebrates a bold approach to adaptive reuse by exposing its iconic ¼ mile-long steel skeleton as a new landscape and green infrastructure armature and installing a sequence of high-tech office, lab, and manufacturing structures within the historic frame. The landscape architects identified opportunities for deconstruction and preservation of the exoskeleton, scaling landscape interventions to celebrate the tectonics of the structure and provide opportunities to gather, explore, and relax amidst expansive wild rubble and wetland gardens…

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