Staff from Waikato's regional council are monitoring a stopbank at Mangatawhiri, where floodwaters are expected to spill onto farmland on Monday.
The Waikato Regional Council's emergency response team is monitoring high river and lake levels following heavy rain over the weekend, in the third storm to hit the country in a week.
They say the farmer who owns the stopbank is aware of the situation and has moved stock from the area.
On Monday morning, the water was about 10 centimetres from the top of the bank.
The council, Environment Waikato, says water is being contained so far by stopbanks along the Waima and Waikato Rivers, but waters are still rising.
It says staff have been working around the clock to keep flood pumps going, and the emergency response team remains on high alert as heavy rain continues to fall in the Lake Taupo catchment.