Services Rendered:

EFDC Hydrodynamic Model

Nested Models

Pre/Post Project Impact Analysis

ADCP Data Processing

Environmental Impacts

Sediment Impacts Analysis

Bed Shear Analysis

Dye Release Study

DSI was contracted by ASMA/ Noor Clean Water, to carry out an hydraulic study to assess the impacts of the Dangerous Cargo Jetty No. 4 extension in Johor Port in southern Malaysia, separated from Singapore by the 1.2 kilometer wide Johor Strait.

A 2D hydrodynamic model of the Pre-development conditions of the Johor Strait East was built and calibrated for water levels and flows using the EFDC_Explorer modeling system. Subsequently a detailed 2D hydrodynamic model of the Pre- and Post-development conditions reflecting the existing situation and the DCJ4 Extension scenario was nested into this large scale model. Post-development conditions were compared with the Pre-development conditions for the affected areas.

Outputs from the study included before and after project implementation water levels, velocity patterns, sedimentation and scour patterns, and sediment releases. Recommendations on mitigation measures to reduce the impact of the proposed project on the environment were also provided. The study also appraised the potential changes in the existing hydrodynamic regime of the project area and the anticipated impacts to the neighboring coastal properties.