Flooding response continues on Maui In 2016, heavy rains and flooding caused a section of the parking lot at Kepaniwai Park to collapse into Iao Stream on Maui. Credit Credit Maui County / Lois Whitney Maui Mayor Mike Victorino is expected to survey the extent of the floooding in east Maui again today. By some estimates, half of the total rainfall that the Valley Isle usually sees in a month fell yesterday, overwhelming the Kaupakalua reservoir. Residents have been evacuated, and emergency crews are working to clear roadways. Mayor Victorino is waiting on the State to approve his request to declare the area a disaster zone.