Lake Rerewhakaaitu School is closed today as staff look for alternative routes to get pupils to school following yesterday's floods.
Principal Patricia Purdie said she had been told pillars supporting a bridge near the intersection of Rerewhakaaitu and Ashpit and Yankee Rds, had been undermined.
"Both our buses use that bridge," Purdie said. "And while there is an alternative route, it would have been a nightmare to try and organise bus routes and timetables on the first day back."
A State of Emergency was declared for Ngongotaha after heavy rain caused slips, damage and closed roads around the region.
She said there had not been any damage at the school.