A huge disaster was induced in Myanmar by the attack of Cyclone NARGIS on May 2nd ,2008. The Yangon Port which is the largest in Myanmar was heavily damaged while the Ayeyarwady Delta in the west part was completely devastated by the storm surge with the inundation depth as much as 7m. A field survey was carried out during May in order to study on the disaster mechanism in the harbor and to obtain the information for recovery planning.
　As one of the results in the survey, the storm surge deviation above the high water level was measured up and it was about 1.8m in the northern side of the Yangon river. The floating pontoons and connecting bridges parts in the jetties were also damaged by the storm surge. The number of damaged jetties was 28 out of the total number of 37. The early recovery of damaged jetties and .the salvage of wreck vessels in the water were urgently needed to the total recovery plan on the devastated area in Myanmar.