"By and and large, I'd have to say the staff have been fantastic. Some of them are tired ... we had some staff working horrific hours," he said.
Mr Watson praised the response from Civil Defence Minister Nikki Kaye. "She has kept in contact with us on a daily basis."
He said there had also been thousands of volunteer hours contributed to the clean-up.
Clearing and fixing the district's roads remained the priority for council but a watchful eye is being kept on the weather while about 10 roading crews work to clear slips and make repairs.
"It only takes a mild rain event to bring more mud back down on to the roads," Mr Watson said.
Almost all Rangitikei roads were now open to at least 4WD access. "But we have a number of roads we can't get stock trucks in and out of," Mr Watson said.
Rangitikei CEO Ross McNeil said the full extent of the damage would not be known until silt was cleared.
Floodwaters had receded from the worst hit areas, including Whangaehu, allowing people back into their homes.