Highland Park Interchange Project

The Highland Park Interchange project in Pittsburgh aimed to both reduce traffic congestion and enhance safety at the Route 28/Highland Park Bridge/Freeport Road Interchange. Central to this effort was the strategic placement of sound barriers supported by large steel beam columns. These columns were galvanized and then painted to ensure long-lasting durability while also maintaining a pleasing aesthetic. PennDOT partnered with the Office for Public Art to bring in Pittsburgh-based artist Brian Peters, who designed a unique sound barrier along SR 28. This artistic addition not only complemented the project’s goals but also added a distinctive visual element to the area.

Soundwalls are essential in improving the quality of life for residents living near highways. In addition to reducing traffic noise, they can boost property values and promote better health outcomes by lowering exposure to high noise levels. These structures are designed with both functionality and aesthetics in mind, ensuring compliance with noise pollution regulations. Moreover, soundwalls help preserve natural sounds, creating an outdoor environment that supports recreational activities and pedestrian enjoyment.

For this project, a deliberate decision was made to paint over the galvanized steel used in constructing the sound barriers. This approach enhanced the corrosion resistance of the structures and aligned with the artistic vision of Brian Peters. PennDOT’s strategic combination of galvanizing and painting ensured the longevity of the steel structures in various environmental conditions while maintaining visual harmony with the artist’s designs. One side of the beams was painted light grey, facing the highway, while the side facing residential neighborhoods was painted dark to blend in. This careful consideration ensures the beams will maintain their appearance for many years. This project stands as a great example of galvanizing excellence!