Barrie SmogStop Barrier Project

The SmogStop Barrier Project in Barrie, Ontario, is a landmark installation in North America. Brought to market by EKHO Infrastructure Solutions Inc, the new highway barrier post and panel system integrates advanced air-pollution and noise mitigation in a complete structure.

The barrier wall panels which are dropped into place between steel posts on site, are supported by a unique structural framing system. Both panel types manufactured for the system were designed with hot-dip galvanized frames to ensure long-term durability, corrosion resistance, and reliable performance under the demanding environmental conditions of a major Provincial highway.

A complex assembly of aluminum frames, they house photocatalytic coated acrylic coated aluminum panels. Although the aluminum panels naturally resists corrosion, the decision to use hot-dip galvanized steel frames was critical due to the exposure to winter road salts and moisture, continuous UV, wind, and temperature stress equating to a long-term, maintenance-minimized solution for a high-traffic corridor. Hot-dip galvanizing provided a robust and uniform protective coating, ensuring that the frames would remain structurally sound for decades.

As Canada continues to make long-term infrastructure investments, the galvanizing component of this project is essential to the system’s longevity, safety, and environmental return. Our role was to ensure the SmogStop system could withstand everything Ontario’s climate delivers. Hot-dip galvanizing gives these components the durability and resilience needed for long-term performance, protecting the investment and maximizing the environmental impact of this groundbreaking technology.

A total of 88 full-length (3,850 mm) SmogStop panels were manufactured and installed, representing approximately 8,843 sq. ft. of total panel area. These panels, and their protective galvanized frames, were engineered for the demanding conditions of Highway 400. In total, the panels weigh approximately 84,000 lbs. (averaging about 1,025 lbs. per panel), demonstrating both the structural strength and durability required for continuous public-infrastructure performance. The system is supported by 54 galvanized steel posts, enabling a streamlined drop-in-place installation along the corridor. Each SmogStop panel incorporates a double-walled design that guides vehicle emissions into an internal channel, where airflow creates mixing and exposes pollutants to a photocatalytic coating. Activated by sunlight, this coating breaks down NOx and VOCs into harmless byproducts, helping clean the air around the highway. SmogStop technology represents a new generation of multifunctional infrastructure. Its ability to reduce traffic-related pollutants using only sunlight positions this technology as a practical, scalable solution for urban corridors facing air-quality and environmental challenges.

The extended service life afforded by galvanizing guarantees a stable framework for the SmogStop panels to operate effectively throughout its design life. As a recyclable, durable, and low-impact protective method, hot-dip galvanizing contributes meaningful sustainability benefits to the overall system. EKHO’s SmogStop panels and structural components position this installation as a leading model for future sustainable transportation infrastructure across Canada.