The bridge is designed for a 100‑year service life and to withstand vessel‑impact forces from ships up to 60,000 DWT navigating the Fraser River. To meet high seismic performance objectives, the structure incorporates large lead‑rubber seismic isolation bearings that reduce earthquake forces and maintain lifeline functionality during the 2,475‑year design event. To accommodate major seismic movement, the bridge uses high‑movement modular expansion joints capable of approximately ±1,800 mm longitudinal and ±1,200 mm transverse displacement through an internal fuse mechanism. A comprehensive seismic structural health monitoring system is integrated. Aerodynamic behaviour was confirmed through extensive sectional and full‑bridge wind‑tunnel testing to ensure stability against vortex shedding, galloping, and flutter, supported by aerodynamic countermeasures such as wind noses. The stay‑cable system uses a semi‑harp arrangement with parallel strand bundles ranging from 23 to 80 strands per stay, supported by triaxial dampers for vibration control and equipped with a sliding‑chain ice‑removal system for winter conditions. The deck uses full‑depth precast concrete panels with stainless reinforcement, improving durability and expediting construction.