Atop a barge the Cherry Street North Bridges journeyed. From Dartmouth Nova Scotia they sailed. Their final destination Toronto’s revitalized Port Lands. These aren’t just any bridges. They are a vital part of a massive project. The Port Lands Flood Protection Project aims to transform a former industrial area. It will become a vibrant and resilient downtown neighborhood.
The Cherry Street North Bridges are two red and white structures. One is wider carrying vehicles pedestrians and cyclists. The other narrower bridge is for transit. Imagine these majestic structures gracefully gliding. They floated across the St Lawrence Seaway. Finally they arrived in Toronto’s harbor.
Their construction involved Halifax-based Cherubini Metal Works. They used mostly Canadian steel. The 3D shell components however are an exception. The design is a marvel of engineering. Entuitive Grimshaw and Schlaich Bergermann collaborated. They created a double-curved shell structure. It’s a unique take on a tied-arch bridge. This innovative design maximized material efficiency. It also reduced costs.
The bridges’ construction presented unique challenges. The double curvature of the steel shells required innovative techniques. Shipbuilding manufacturing processes were employed. This ensured precise bending of the thin steel plates. To avoid visible press marks small presses were used. The tolerances were limited to just a few millimeters.
Once assembled the bridges were painted. They were then transported to their location. A barge carefully maneuvered each bridge. It rotated them into the correct position. The bridges were lowered directly onto the abutments. This method minimized on-site work. It also maximized accuracy.
The Cherry Street North Bridges aren’t just infrastructure. They are symbols of Toronto’s innovation. They connect Villiers Island to the city. They provide crucial transportation links. These bridges are a testament to collaboration. They are a testament to modern engineering. They represent Toronto’s commitment to a sustainable future. They are truly a sight to behold a symbol of progress and resilience.