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Elliptical Observation Platform Crafted from Cross-Laminated Timber and White Oak, Embracing Prairie Views

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Elliptical Observation Platform Crafted from Cross-Laminated Timber and White Oak, Embracing Prairie Views
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Crafted from cross-laminated timber and white oak, the elliptical structure rises above the prairie, offering an accessible observation platform that connects visitors to the surrounding landscape and local history.
5 key facts about this project
01
Crafted with cross-laminated timber, enhancing structural strength and sustainability.
02
Equipped with a wheelchair-accessible ramp designed at a 1:12 slope ratio for inclusivity.
03
Features a panoramic observation platform that accommodates community gatherings.
04
Incorporates locally sourced white oak for aesthetic coherence with the surrounding environment.
05
Designed as an educational tool, promoting awareness of local history and ecology.

## Project Context and Concept

The Tower of Rising Bubbles is located in Eastern South Dakota, near Silver Lake and the town of De Smet. This site, recognized for its historical importance and natural landscape, provides a relevant context for the architectural design. The intent of the tower is to represent the pioneering spirit associated with the region while promoting a connection to the local environment. Inspired by the experiences of early settlers, the design emphasizes themes of vitality and growth through its elliptical cylindrical form, which serves to engage the public with the surrounding prairie ecosystem.

### Material Selection and Sustainability

The project utilizes a range of sustainable materials that complement its ecological context. Key components include white oak wood for the columns and ramp, cross-laminated timber for the ramp boards and beams, and a dark colored oak wood outer shell. Additionally, a reticulated shell constructed from wood batten adds aesthetic and structural value. This material choice not only enhances the visual quality of the tower but also supports structural integrity while minimizing ecological impact, as all elements are suitable for prefabrication and efficient on-site assembly.

### Accessibility and User Engagement

The design incorporates several functional elements to enhance accessibility and user experience. A ramp with a 1:12 slope provides wheelchair access to the observation platform, which is elevated to 13.8 meters and designed to accommodate 12 to 15 visitors within a 14-square-meter area. This arrangement fosters community engagement while ensuring safety. Furthermore, the open design allows natural light and airflow, creating a harmonious atmosphere that encourages visitors to connect with the ecology of the area, particularly the diverse wildlife presented in the Silver Lake region. The project also emphasizes community involvement during the construction phase, strengthening ties between local residents and their heritage through collaborative efforts.

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Vancouver Tall Challenge: Building Higher Downtown

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Competition organisers

The Vancouver Tall Challenge: Building Higher Downtown is an international architecture competition organized by Buildner in collaboration with the City of Vancouver and the University of British Columbia’s School of Architecture and Landscape Architecture (SALA). The competition invites architects, designers, planners, and creative thinkers to explore innovative approaches to tall buildings in Vancouver’s downtown core, focusing on sustainability, livability, urban density, public space, and the city’s strong connection to nature. As Vancouver continues to grow, participants are challenged to rethink how vertical development can enhance urban life and contribute to a more vibrant, inclusive, and resilient city identity.

The competition offers a total prize fund of $15,000 CAD, with winning proposals selected by an international jury of architects, planners, academics, and city-building professionals. Key dates include the final registration deadline on October 29, 2026, submission deadline on November 30, 2026, and winners announcement on January 26, 2027. Full competition details, requirements, and registration information are available at architecturecompetitions.com/VancouverTallChallenge

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