Unfinished Arch - Toronto, ON, Canada

INTRODUCTION

On June 1, 2026, Waterfront Toronto and the City of Toronto unveiled Unfinished Arch, a new landmark public art installation in Sherbourne Common on Toronto’s eastern waterfront. Created by acclaimed artist Rafael Lozano-Hemmer and selected through an international call for proposals, the work now stands as the centrepiece of the East Bayfront Public Art Master Plan, joining Light Showers by Jill Anholt and LIGHTKEEPER by Caitlind r.c. Brown, Wayne Garrett, and Studio North.

At the heart of the work is a single gesture: touch. Unfinished Arch is deliberately left incomplete, its far end unsupported and dark, until a visitor reaches out and completes it with light. That moment of contact, not the structure alone, is what the piece is built around, and it marks Lozano-Hemmer’s first permanent public artwork in Canada.

ARCHITECTURE & LIGHTING DESIGN

Standing 9 m / 29.5 ft tall, Unfinished Arch cantilevers 14 m / 46 ft from a single point in the ground, its far end left open rather than resolved. Lozano-Hemmer describes the piece as an anti-monument: it borrows the techno-optimism of a mid-century modernist arch, then leaves it truncated, asking the public to physically complete what would otherwise appear to collapse. The interaction is the design; without a visitor’s touch, the arch remains unfinished by intention.

Fabricated by Eventscape, the structure conceals significant engineering beneath its minimal form, needed to support that open-ended geometry. The stainless-steel arch weighs approximately 11 tons and is anchored nearly 15 m / 50 ft into the waterfront site, allowing the long cantilever to hold its shape without visible support at the point visitors reach for.

Accessibility shaped how that reach works. Unfinished Arch is the first public art commission reviewed by Waterfront Toronto’s Accessibility Advisory Committee, whose feedback shaped the circulation paths, clearances, and interaction zone around the work. The truncated end is stepped so visitors of different heights and abilities, including wheelchair users, can reach it, and multiple people can complete the gesture together. Tactile paving guides visitors to the interaction point, and a quiet ticking sound near the lowest point of the cantilever helps visitors who are blind or have low vision locate it.

CONNECTION WITH LIGHT

Light is what completes Unfinished Arch, and GVA’s role is to make that connection real. Around 100 STR10^® MONO luminaires run the length of the arch, following its curve from the anchor point to the truncated edge, dark and dormant until a visitor’s touch closes the circuit. In that instant, the luminaires respond immediately, turning contact into light and giving the artwork’s central gesture its physical form.

STR10^®‘s compact, sleek profile let it run discreetly along the arch’s slender geometry without competing with the sculpture’s form, while its high output ensures the moment of contact reads clearly along the full 14 m span. Paired with COLOR-STREAM^®, GVA’s ultra-fast proprietary lighting communication protocol, the response to touch is immediate and flicker-free. That combination of size, output, and speed made STR10^® and COLOR-STREAM^® the natural match for a work where light is the connection between people and art.

IMPACT

By making illumination something visitors trigger themselves, Unfinished Arch turns light into the connective act at the centre of the work, the moment a stranger’s touch completes what the artist deliberately left open. Alongside Light Showers and LIGHTKEEPER, it adds to a curated collection of works that give the East Bayfront its own identity after dark, strengthening Toronto’s eastern waterfront as a destination built on shared, hands-on public art.