The Port of Kuantan had been completed in 1978 by European contractor, immediately after which the steel sheet pile cofferdam type of quaywall began to suffer the excessive sliding and settlement. Furthermore, during monsoon season, the wave height in basin sometimes became more than 1.0m, causing difficulty and danger the berthing and loading/unloading of the ships.
In this paper the remedial method of quaywall and layout plan of the breakwater by calmness analysis are presented, and the result of our examination for earth anchor test and wave observation during the construction are reported.