The Champlain Bridge, an iconic gateway spanning the St. Lawrence River in Montreal, showcases not only the excellence of engineering but also becomes an integral part of the city’s landscape. With a main span of 240 m, the bridge employs a unique single-pylon harp-shaped double-plane cable-stayed structure. The upper pylon is inspired by a tuning fork in its lateral design, while the upper crossbeam artfully mimics the shape of a bow tie, endowing the bridge with a visual beauty that harmoniously blends elegance and strength. The bridge deck, with a total width of 60 m, was the widest double-plane cable-stayed bridge in the world when it was completed. The typical spans of approach bridges on both sides are 80.4 m and 84.0 m, respectively, and the main girder adopts a large cantilever steel-concrete composite box girder. The pier design is equally distinctive, featuring W-shaped steel pier caps that complement the inclined pier shafts, enhancing the visual hierarchy of the structure. The exposed structural elements collectively form a unique landscape element, seamlessly blending into the local temporal and spatial environment. The main bridge foundation utilizes cast-in-drilled-hole piles, while the approach foundations primarily adopt spread footings, with a few exceptions using piles. Based on construction and transportation conditions, the gird height and span were determined, and a rational structural segmentation was implemented. The industrialized construction techniques, featuring extensive use of precast segments, encompass the main girder, steel pier caps, pier shafts, and spread footings. This significantly improves product quality and efficiency while reducing environmental impact during construction, embodying the concept of green construction.