Cline’s Point Marina, located in Port Aransas, TX, has been experiencing detrimental conditions during the passage of deep-draft ship traffic. Deep-draft vessel-induced surge analysis was performed to evaluate water level fluctuations and surge-induced current velocities inside the marina. Modeling of existing harbor conditions indicated that the pressure field effects change significantly at higher passing speeds. Spectral analysis was used to isolate and develop an understanding of the higher-frequency component of the waves from the overall water level time series. Alternatives were developed and analyzed for reducing the penetration of both the low and high frequency wave components into the marina.