Public Art Installation — 2025
Cyclicality at the Washington Pavilion
Urban Oasis helped install Cyclicality, Jen Lewin's permanent interactive light sculpture at the Washington Pavilion in downtown Sioux Falls.
Urban Oasis was proud to play a major role in the installation of Cyclicality, a permanent interactive light sculpture created by internationally recognized artist-engineer Jen Lewin for the Washington Pavilion in downtown Sioux Falls.
Unveiled on June 12, 2025, Cyclicality was privately funded as a gift to the community in recognition of the Washington Pavilion's 25th anniversary. The finished installation brings together public art, technology, natural materials and the distinctive geology of Sioux Falls.
Bringing a large-scale public artwork to life
Installing a work of this scale requires careful planning, close coordination and respect for the artist's intent. Urban Oasis helped transform the project site into the permanent home of Cyclicality, supporting the installation and surrounding exterior work needed to integrate the sculpture into the Washington Pavilion campus.
Every part of the site needed to support both the technical requirements of the artwork and the experience of the people who would encounter it. The finished space allows visitors to move among the illuminated forms, view them from different angles and interact directly with the sculpture.
For our team, the most rewarding part of the project was helping turn a highly technical artwork into an accessible public space that can be experienced by the entire community. Cyclicality is unlike any other project we have worked on, and we are honored to have contributed to its installation in the heart of Sioux Falls.
A permanent, community-facing installation integrated into the Washington Pavilion campus and open to the public day and night.
- Project
- Cyclicality
- Location
- Washington Pavilion, Sioux Falls, South Dakota
- Artist
- Jen Lewin
- Completed
- 2025
- Project type
- Permanent outdoor public art installation
- Urban Oasis contribution
- Installation and exterior site integration
- Scope
Installation support and coordination
Exterior site integration
Site preparation and layout
Concrete and hardscape
Public access and staging control
About Cyclicality
Cyclicality is a site-specific sculpture inspired by the natural beauty and geologic history of Sioux Quartzite. The installation consists of 11 illuminated, reflective crystal forms rising as high as 21 feet.
Dichroic panels and semi-transparent infinity mirrors allow the sculpture to change throughout the day. In sunlight, the forms reflect the surrounding landscape and cast shifting light and color across the site. Quartzite stone remains visible inside the crystal-like structures, connecting the contemporary installation to one of the region's most recognizable natural materials.
After dark, Cyclicality becomes an immersive field of illuminated color and apparent depth. Three interactive pedestals allow visitors to influence the sculpture's color palettes, animation speed and rhythm of light. Touch and proximity turn each visit into a different experience.
The name Cyclicality refers to recurring cycles and rhythmic repetition. The artwork reflects the continuing processes of erosion, transformation and renewal that have shaped the Sioux Falls landscape.
About artist Jen Lewin
Jen Lewin is an internationally recognized artist-engineer based in Brooklyn, New York. For nearly three decades, she has combined her architectural background with advanced technology to create large-scale interactive public sculptures.
Her work is designed to be experienced rather than simply observed. Light, movement and human participation become part of each installation, encouraging people to gather, explore and play. Lewin's sculptures have appeared at major events and public spaces around the world, including Vivid Sydney, Burning Man, the Istanbul Light Festival and installations across the United States and internationally.
Cyclicality continues that approach while responding specifically to Sioux Falls. Its crystalline forms, embedded quartzite and changing patterns of light connect the local landscape with Lewin's broader exploration of nature, technology and collective human interaction.
A permanent addition to downtown Sioux Falls
Located near the Washington Pavilion's north entrance and Paladino Hohm Sculpture Garden, Cyclicality is now a permanent part of downtown Sioux Falls.
The artwork was made possible through private donations and presented in honor of the Pavilion's 25th anniversary. It creates a new reason to experience the Washington Pavilion campus during the day, after dark and through every South Dakota season.
We are grateful to the Washington Pavilion, Jen Lewin Studio and every project partner who trusted Urban Oasis to help bring this ambitious public artwork into the landscape.
Documenting the finished installation
Special thanks to Michael Woolheater Media, a Sioux Falls photography, video and digital marketing studio, for documenting Cyclicality and the completed project.
Michael's photographs capture the scale, reflective surfaces, quartzite details and changing character of the installation in both daylight and illuminated nighttime conditions. His Cyclicality photography is also featured in Jen Lewin Studio's official project portfolio, helping share this remarkable Sioux Falls public artwork with audiences well beyond South Dakota.
Building distinctive outdoor spaces
Cyclicality demonstrates what can be accomplished when art, construction, technology and landscape come together around a shared vision.
From custom residential environments to complex commercial and public projects, Urban Oasis delivers site development, excavation and concrete construction with careful planning, quality craftsmanship and attention to detail.
Planning a distinctive project in Sioux Falls or the surrounding area? Contact Urban Oasis to start the conversation.
Start a conversation
Tell us what you want to build.
Share the property, the scope and the timeline. We'll tell you honestly what it takes to do it right.