The major dredging and reclamation project at Turtle Island, on the south east of Bali, projuced numerous coastal engineering and environmental challenges. DHI has undertaken all responsibilities for the hydraulic and environmental design of the Turtle Island project in addition to all aspects of the environmental management of the marine environment associated with the borrow dredging and reclamation activities.

DHI's involvement with the project from 1996 through 1998 included studies of:

• Morphological Impact Assessment
• Met-Ocean design conditions
• Physical model testing of wave transformation over nearshore reef
• Design optimisation of coastal protection structures
• Environmental impact assessment, including analysis of impacts on flushing within Benoa Bay, water quality within the bay and the adjacent existing recreational beaches and navigation conditions in the harbour approach channel
• Comprehensive feedback monitoring and management of dredging and reclamation operations including spill forecast/hindcast and biological habitat monitoring