In modern times, bridge designs are tending towards longer and slender configurations, presenting new challenges to ensure their stability and resistance. This research focuses on the effects of wind-induced vibrations in the context of long, slender arch bridges, with particular reference to the recently constructed Bomarsunds Bridge between two islands in Finland. The primary goal of this study is to comprehensively analyze the dynamic behavior of the bridge under wind loading, as wind-induced vibrations pose potential risks to its safety and structural integrity. The slender hangers of the bridge, especially within the central span, have exhibited significant vibrations, necessitating an in-depth investigation to understand the bridge’s response to wind forces.