2018 – A Quick Probable Maximum Flood Estimation Method for Queensland

Samantha Watt, Michael Hughes & Daniela Sciacca

This paper presents an updated simplified technique for estimation of extreme floods in Queensland. This technique will be of use to practicing hydrologists and engineers working on early phase investigations of dams, weirs, and other infrastructure that requires flood resilience for extreme floods. The equations presented in this paper will provide practitioners with a robust yet simple to apply technique to rapidly estimate peak PMPF and PMF flows (inflows for dams) for Queensland catchments. This will assist feasibility and optioneering of infrastructure without significant cost overheads associated with often complex and time-consuming extreme flood estimates.

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