A "small number" of Whakatane residents have been evacuated from their homes after a hole was found in a stopbank.
Whakatane District Council opened a welfare centre at the War Memorial Hall to shelter the Fortunes and Paroa roads residents.
Civil Defence controller Diane Turners said the evacuation was a precautionary measure.
"The (Bay of Plenty) Regional Council is working as quickly as it can to repair the breach," she said.
The council also had diggers cutting into banks at the mouth of the river to open the floodway.
Rain was today easing in the sodden Bay of Plenty after days of heavy rain.
Flood duty manager Graeme O'Rourke said stop logs were installed on the Whakatane River, and in the Te Rahu and Waioho Canals.
The Whakatane River was still causing concern but the Otara, Waioeka and Waimana rivers had begun to recede after reaching second warning levels overnight, he said.
Farmers were yesterday asked to move stock to higher ground, while boats moored in the Whakatane River were moved.
Many roads around the region were closed today, with the town of Opotoki isolated by slips and flooding.
Mr O'Rourke said surface flooding on low-lying rural land was likely for several days until drainage systems could remove the excess water.
Civil Defence managers warned residents to stay home unless driving was essential.
Metservice forecaster Gerard Barrow said a heavy rain warning for Bay of Plenty and Gisborne had been lifted.
"People should watch out for rising rivers and streams, (for) slips, and be aware that driving conditions could still be hazardous," he said.
NZPA