SIMULATING DREDGED-MATERIAL PLACEMENT AT OPEN-WATER DISPOSAL SITES uri icon

abstract

  • A new approach is described for the quantitative assessment of open-water disposal activities with regard to short- and long-term morphology of dredged material placed on the seafloor at designated open-water disposal sites. A personal-computer-driven numerical simulation, called the Open water Disposal Area Management Simulation (ODAMS), is described. The simulation automatically grids the disposal area and incorporates existing short-term (minutes to hours) and long-term (weeks to months) fate models to predict the bottom bathymetry for multiple disposals of dredged material. Several disposal scenarios such as random placement around a buoy, line placement, and individually specified disposal locations are possible. Before-and-after bathymetry comparison is also an option. The simulation is intended to assist in planning and managing open-water dredged material disposal sites. Bathymetric predictions from the simulation and subsequent volume computations are compared to actual hydrographic survey results from a yearlong series of disposal operations at a current open-water disposal site. Predicted bathymetry is in good agreement with the hydrographic survey results, and the volume comparison is within 10%. ASCE.

published proceedings

  • JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE

author list (cited authors)

  • MORITZ, H. R., & RANDALL, R. E.

citation count

  • 3

complete list of authors

  • MORITZ, HR||RANDALL, RE

publication date

  • January 1995