This paper investigates the influence of a crown wall on wave overtopping rubble mound breakwaters. Existing data is used to modify EurOtop formula updated by Eldrup et al. (2022) cover wall. The effect raising above armour crest (elevated wall) or lowering below (lowered investigated. A at level considered as reference case. By increasing elevation either wall, reduced and them, increases. hei...

Wave overtopping is a common phenomenon that occurs during extreme sea conditions, where water waves travel over the surface of an open structure towards and pass its crest. To prevent flooding coastal erosion, rock structures are often constructed as wave barriers along shore. These serve solution to mitigate overtopping. One key factors influencing arrival continuous sufficiently high-water c...