The construction of the port in Omiš is underway, where for the contractor, TEXO MOLIOR, we perform regular inspections of the underwater part of the construction site using our Teledyne RESON SeaBat T20 multi-beam system. From the obtained high-resolution 3D model of the seabed, a situational plan is generated and the necessary profiles are drawn for the control of excavations and embankments, and cubic volumes are calculated.