Garrison Canal


Client: Pittsburgh Downtown Partnership

Location: Pittsburgh, PA, United States

Completion date: 2018

Artwork budget: $90,000

Project Team


Andrea Polli

Industry Resource

Morgan Barnard

Industry Resource

Eric Geusz

Industry Resource

Technique Architectural Products

Industry Resource

Flyspace Productions


Garrison Canal turns the Pittsburgh alleyway Garrison Place into an imaginary underwater future world of big data. Visitor to the Canal can “swim” below waves of thousands of shimmering lights that transform color and animate in response to real-time changes in local weather conditions.


The project is part of a larger initiative to enliven Downtown alleyways with lighting, artwork, and pedestrian enhancements.


Andrea Polli is the lead artist on the project and worked with Morgan Barnard in the role of technical designer. Eric Geusz developed the software that used data to control the lights. Andrea Polli developed the overall concept and Morgan Barnard created visual mockups and did the initial design work on the structure for the LED array above the alley. Technique Architectural Products took these designs and created the fabricated aluminum struts that suspended the LEDs above the alleyway.