Refining the historical flood series for Ba, Fiji

This report extends, reviews and explains in detail the historical flood series for the Ba River at Ba, Fiji. It is the longest quantitative flood series for a river in Fiji, describing 32 floods that have inundated Rarawai Sugar Mill over the 123‐year period from 1892 to 2014, at an average of once every 3.8 years. The accuracy of each flood level is assessed, with 56% of these floods deemed to have a high rating and 34% a medium‐high or medium rating. Flood levels for 12 lesser floods are also estimated. This extended and verified flood series provides the basis for forthcoming statistical analysis.