For over 25 years, CSE has assisted Sasaki Associates (Boston) with coastal engineering in connection with large waterfront developments. Some recent projects include wave and flow modeling for the Daniel Island Marina in Charleston (SC) and a flushing study for a proposed marina in Panama City (FL).
For the Daniel Island Marina, CSE collected detailed bathymetry in the lower Wando River and measured tides, currents, turbidity, and discharge within the system using our complement of acoustic current meters, pressure gauges, and synoptic sampling gear.Time-series field data were used to calibrate the hydrodynamic model, RMA2, under USACE’s Surface Water Modeling System (SMS). Once calibrated, RMA2 was used to simulate flows and water levels under extreme events. Waves were calculated for 10-, 50-, 100-, and 500-year events for mid-tide and peak-tide conditions. The goal was to provide the marina designers with the range of hydrodynamic forces for the setting so they could optimize the design of piles and docks under Category 2 or Category 3 storm conditions.