Multibeam Hydrographic Surveys of Clearance and Scour at the South Carolina State Port of Charleston
In 2013, Geodynamics performed a hydrographic survey of the Wando Welsh Terminal, adjacent federal channel and turning basin. Deliverables included QA/QC, processed data, and CAD for integration into engineering drawings. Our EM3002D multibeam sonar was used to acquire high-resolution bathymetry of the dredged terminal bathymetry, and vertical pilings lining the ship berths were also accurately imaged and positioned.
In 2015, the SC State Port Authority was developing a container terminal at the former Naval Base site in North Charleston. Geodynamics was contracted to complete a multibeam survey of an underwater rock berm that had been placed on existing containment walls and that was settling and consolidating over time. Geodynamics performed a seamless topo-bathy survey of the existing rock berm, including RTK-GPS topographic surveys of the non-submerged rock berm situated on the outside of the existing containment wall with 25’ profile intervals and a multibeam hydrographic survey of submerged rock berm. The contractor had planned for the requirement of additional singlebeam sonar surveys of the shallowest areas around the berm, but the Geodynamics EM3002-D multibeam is designed for extra swath width and extremely shallow multibeam acquisition, and so we were able to provide 100% multibeam coverage for greater client satisfaction. Geodynamics was able to acquire and process the survey data within days of first contact, so that construction could progress on schedule and without delay.
Geodynamics is certified as a DBE in the state of South Carolina.