Client: City of Ann Arbor

Location: Ann Arbor, MI, United States

Completion date: 2013

Artwork budget: $150,000

Project Team


Ed Carpenter

Ed Carpenter Studio



Engineering: KPFF

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Biella Lighting Design

Lighting Design: Beilla Lighting Design

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Madden Fabrication

Metal Fabrication: Madden Fabrication

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Glass Strategies

Glass Fabrication: Glass Strategies

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Ann Arbor Fabrication

On-site Steel and Logistics: Ann Arbor Fabrication

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Dryall and Paint: WCWR

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Hopp Electric

On-site Electrical: Hopp Electric


Curtis Pittman

Computer Modeling: Curtis Pittman


Arleen Daugherty

Project Administrator: Arleen Daugherty


Aaron Seagraves

City of Ann Arbor Project Administrator: Aaron Seagraves


Ann Arbor Justice Center /
“Radius” /
Lobby sculpture /
40’ x 20’ x 12’ /
Laminated dichroic glass, aluminum, stainless steel, lighting /

Like ripples from a stone tossed into a pond, “Radius” emanates outward through the Ann Arbor Justice Center lobby, a reminder of the interconnectedness of the public with agencies serving them, and suggesting a network of cause and effect in the public realm.


The Ann Arbor Justice Center had been completed for about a year before Carpenter was selected, so he was collaborating with the spirit of the space more than with its designers. Carpenter’s process however, was informed by meetings with users of the Justice Center, including police, judges, and security staff who pass through the lobby daily, and whose clients and visitors do as well. How to relate to materials and surfaces already in place, and how to connect to structure long-since covered, as well as addressing views from the street, the lobby, and the balcony, were major concerns.

Additional Information

“Radius” is designed to involve as much of the lobby as possible, radiating from the southeast corner, visible from inside and outside, day and night. Concealed lighting illuminates laminated glass and polished aluminum details, casting glowing projections of the sculpture’s expansive forms.