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Estimation of large to rare floods is needed in the design of major water infrastructure such as large bridges, weir s and dam spillways. This paper presents a simple Large Flood Regionalisation Model (LFRM) which is relatively easy to apply in practice. The proposed method assumes that the maximum observed flood data over a large number of sites in a region can be pooled together by accounting for the at-site variations in the mean and coefficient of variation (CV) and inter-station correlation among the flood se...