ASI proposes a two-phase approach utilizing a USV, equipped with LiDAR, side-scan sonar, and multibeam sonar, and an ROV, equipped with 2D and 3D sonar. The first phase will be a one-day collection of data with the USV and interpretation of collected data. The interpretations from phase 1 data will be used to guide phase 2, which will be a two-day data collection with an ROV. This multiphase approach will provide a thorough inspection of the full lock, with an enhanced detailed inspection of the main features as well as any defects present. The resulting data sets will provide a full picture that will be usable as a baseline for future work as well as precise reviews of identified abnormalities. These technologies have been proven effective for use on steel and concrete structures and are able to comprehensively identify and map anomalies present.