Bowman conducted a hydrographic survey utilizing multibeam echo sounding and side scan sonar technologies along cells one through 19 of the wharf’s cellular wall face. The survey aimed to validate recent structural repairs, identify any remaining defects and support the creation of as-built documentation.
Advanced GPS and inertial positioning systems were employed to ensure high precision data collection, while sound velocity corrections and patch testing were used to calibrate the system. The survey vessel gathered detailed sonar and point cloud data, which was then post-processed and analyzed using specialized software and GIS platforms to detect anomalies and features indicative of structural concerns or past repairs.
Bowman identified 21 notable anomalies across the inspected cells, with many classified as “potential concerns” or “areas of repair to validate.” Despite limitations in data acquisition near cells one through four due to an obstructing dive barge, the survey still captured valuable multibeam data in those regions. Identified features included wall irregularities debris, and surface changes potentially caused by previous repairs or ongoing deterioration. All anomalies were confirmed through overlapping datasets to ensure validity.