From the Facebook page of Waitaki Mayor, Gary Kircher:
Latest update on river levels:
Kakanui at Clifton Falls has peaked at 580m3/s at 12:30pm and currently at 495m3/s and still receding.
Kakanui at Mill Dam is at 550m3/s and still rising, the water from Clifton falls will take approx. 4 hours to reach this site. This will continue to rise and then slowly recede after. The SH1 at Maheno is closed.
Shag at the Grange is holding at 230m3/s
The rainfall for the North Otago catchment has slightly eased off with hourly accumulations now at 5-7mm and hour.