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Geothermal Footbridge Crafted from Galvanized Steel in Volcanic Terrain

Author:
Asli Agirbas
Geothermal Footbridge Crafted from Galvanized Steel in Volcanic Terrain
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Utilizing geothermal energy, a galvanized steel footbridge elegantly spans the volcanic landscape, providing accessible viewpoints for visitors to engage with the unique geological features of the Nemrut Caldera.
5 key facts about this project
01
Utilizes geothermal energy for sustainable electricity generation.
02
Features galvanized steel mesh for visibility and safety.
03
Designed with a 5% slope for universal accessibility.
04
Integrates seamless observation decks that enhance landscape engagement.
05
Constructed to withstand harsh weather conditions in a volcanic environment.

### Project Overview
The Nemrut Volcano Observation Footbridge is situated within the Nemrut Caldera in Eastern Turkey. Designed to enhance visitor engagement with the region’s unique volcanic landscape, the structure offers expansive views of Lake Van and the surrounding terrain. The architecture integrates effectively with the natural environment, reflecting a commitment to sustainable practices, including the use of geothermal energy.

### Spatial Strategy and Visitor Engagement
The design prioritizes accessibility and visitor interaction, featuring a 5% inclined ramp that leads to three strategically positioned observation decks. These platforms provide uninterrupted vistas of the caldera, facilitating an immersive experience that connects visitors to the geological and environmental characteristics of the area. The architectural language is defined by smooth, flowing lines that echo the region’s natural forms, minimizing visual disruption while fortifying the relationship between the structure and its landscape.

### Materiality and Sustainable Systems
Constructed primarily from galvanized steel, the footbridge is built to withstand the harsh climatic conditions typical of the area while maintaining aesthetic coherence with the environment. Key materials include a galvanized steel mesh walking surface designed for safety and visibility, complemented by a variety of structural components such as steel I-columns and welded column heads.

The project incorporates geothermal energy systems that leverage the volcanic activity beneath the surface, providing electricity for the footbridge and the nearby cableway system. Additional sustainable features include integrated lighting for safety during nighttime use and a heat-based snow management system, ensuring year-round access. This approach underscores a commitment to renewable energy and environmental stewardship.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

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