The worst hit waterway in the deluge of October 15-16 was the Turakina River, which had a 75-year flood.
Flooding of up to 57 houses in Wanganui's Anzac Pde was narrowly averted and the highest rainfall to a contributing waterway was recorded at Marco Rd near the Whangamomona River in Taranaki - 133mm over a 24-hour period.
A report for Horizons Regional Council's catchment committee meeting yesterday puts some statistics around the October flood event.
While that volume of water in the Turakina River could only be expected every 75 years, the Whanganui had a 23-year flood and the Whangaehu and Rangitikei had 22-year floods.
The largest amount of land to be flooded was on the lower Whangaehu River - 947ha. On the lower Turakina 835ha were flooded - with crops lost and damaged. There was a lot of bank slumping in both rivers, but the report said water drained readily because the council has been removing bank vegetation that used to slow it.