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The Sarajevo Bridge is the northernmost piece of infrastructure to span the Avinguda Meridiana, a highway that brings southbound traffic into the Catalonia capital. The elevated bridge’s conspicuous location motivated the city council to transform the structure into an eco-friendly green threshold for Barcelona. The renovated bridge will improve air quality and serve as a pedestrian-friendly meeting point between the two Trinitat neighborhoods.

Related: World’s First Glow-in-the-Dark Road Promises a Brighter, More Energy-Efficient Future

BCQ’s designs will bring a dramatic change to the Sarajevo Bridge—currently a boring and unsheltered roadway devoid of greenery—and clad the structure with green walls and pergolas. The bridge’s pavement will be replaced with photocatalytic concrete, a self-cleaning material that oxidizes pollutants and purifies the air. To make the bridge energy self-sufficient, the structure will be lit by solar-powered LEDs and photo-luminescent elements embedded into the concrete.

+ BCQ Architects

Via Dezeen

Images via BCQ Architects