The Waikato River level is still creeping up but Civil Defence is confident no Hamilton houses are in danger of being flooded.
The rise of the river level is the result of a controlled release of water from Lake Karapiro, which is in turn releasing pressure on Lake Taupo that is at capacity.
This morning's level was at 15.65m.
Waikato Civil Defence spokesman Paul Blewman told NZPA today 30 homes on Anne Street and Awatere Avenue would not be in danger of flooding until the level crossed the 16m mark.
Civil Defence is working with Environment Waikato and Mighty River Power to monitor river levels. Waikato Stadium had been put on standby in case of any evacuations.
Mr Blewman said his concerns about the river had eased since yesterday.
"We've some pretty good reviews on the capacity of the Waikato system."
He said controlled flooding would continue for some more days yet.
"But the problem with the best laid plans is that nature tends to upset them.
"We should be able to have reasonable confidence that we'll be able to manage the river so the residents continue to feel safe."
He said he was "95 percent" sure the river would not reach flooding levels.
Meanwhile, heavy snowfall overnight has closed a number of roads around the country.
State Highway 6 between Motupiko and Murchison and Makarora to Haast is closed. SH94 from Fiordland National Park to Milford Sound is also closed.
In the North Island the Desert Road on SH1 is closed between Rangipo and Waiouru due to snow turning to ice.
SH1 at Waikanae has been reopened after heavy rain and motorists in the Hutt Valley have been warned to take care due to surface flooding.
In Hawke's Bay, a tree has fallen on the Napier Taupo Road at Te Pohue, and there is a slip on State Highway 35 between Tikitiki and Ruatoria.
There are also slips on SH37 near the Waitomo Caves and on SH31 near Ngutunui.
