JOHOR BARU: The massive flash floods that hit the city on Wednesday were due to abnormal downpour, which coincided with the high tide, says Datuk Mohd Jafni Md Shukor.
The state housing and local government committee chairman said the downpour that caused flash floods in 38 locations within Johor Baru was due to abnormal rainfall of 60mm compared with the usual between 10mm and 20mm.
With such intensity, even if all the water pumps were operating, they would not be able to release large quantities of water as the rainfall coincided with the high tide, he said in a press conference at Menara MBJB here yesterday.
He said measures would be taken by the state government to prevent such incidents.
He said among the measures were new property development projects around the Greater Johor Baru area should take into account the intensity of rainfall reaching 100mm.
“This means that the construction of ditches and drainage systems must be suitable for rain with an intensity of 100mm, four times the current rate,” he said.