Manila Bay is an important host of several physical infrastructures of Metro Manila. During recent strong typhoons, the Roxas Boulevard seawall has been damaged and overtopped by huge waves from Manila Bay. The economic and other costs of the damage have been attributed to the inundation of the road and other infrastructures due to the overtopped seawall. In order to find suitable engineering interventions, it is important to understand and quantify the waves and water levels that may be induced near the seawall by offshore meteorological conditions. Initial results synthesized from the application of a nonlinear wave model are discussed in this paper based on available data of water levels and met-ocean forcing. The simulations indicate the critical importance of historical storm surge values and offshore wave approach conditions in determining the overtopping potential of waves on the seawall. Proposed mitigating solutions are also discussed
