Papua New Guinea's National Disaster Centre has donated 133,000 US dollars to clean up the flood damage in Milne Bay province following heavy rain.
4,000 people have been affected in the Alotau District after flash flooding swept away houses and food gardens and 25 major landslips destroyed roads on the North Coast Highway two weeks ago.
The Milne Bay Provincial Disaster Coordinator Eric Balaria says the heaviest rainfall was recorded between the 21st and 22nd of June.
He says the floodwaters are subsiding and government and provincial disaster management officials are cleaning up the affected roads.
"The member for Alotau and Minister of Culture and Tourism, the honourable Charles Abel called an urgent meeting and got some responsible government agencies together and we have responded by having the proposition that the highway commence clearing up the debris."
Eric Balaria says disaster management officials are now warning people of the risks of planting food gardens near river banks.