Due to Vietnam's burgeoning economy, there has been a notable surge in waterway transportation, leading to the development of numerous rivers and seaports in recent years. Although extensive studies have been conducted on port system planning and hydrodynamic modeling of navigation channels, there remains a lack of development in specific studies regarding post-vessel collision inspection processes. This paper focuses on a case study of a vessel collision at a port in southern Vietnam, exploring the use of innovative survey technologies including Unmanned Aerial Vehicles (UAVs), Terrestrial Laser Scanning (TLS), and Unmanned Surface Vehicles (USVs). The paper also proposes a straightforward process for Building Information Modeling - Geographic Information System (BIM-GIS) modeling for post-vessel collisions, followed by a thorough evaluation and testing of structural components and operational equipment. This includes conducting periodic inspections and implementing redesign strategies to restore structural functionality post-collision. Through this study, the paper aims to contribute to the advancement of port safety and maintenance practices in the face of increasing maritime traffic and associated risks of collisions.