Table of contents
Executive summary...........................................................v
1 Project background.................................................1 1.1 Introduction................................................................................ 1 1.2 Site description..........................................................................1 1.3 TSF Characteristics...................................................................2 1.4 Receiving environment.............................................................3 2 Dam failure overview...............................................5 2.1 Dam failure mechanisms..........................................................5 2.2 Sunny day and flood day scenarios........................................6 2.3 Breach locations........................................................................6 2.4 Flow behaviour..........................................................................7 2.5 Flood severity classification....................................................7 2.6 Downstream modelling extents...............................................8 3 Failure scenarios.....................................................9 3.1 Failure mechanisms..................................................................9 3.2 Failure location........................................................................10 3.3 Background flood....................................................................11 3.4 Initial conditions......................................................................11 3.5 Overview of considered failure scenarios............................11 4 Dam break characterisation.................................12 4.1 Outflow volumes......................................................................12 4.2 Dam break parameters............................................................16 4.3 Outflow hydrographs..............................................................17 5 Hydraulic modelling..............................................20 5.1 Modelling approach and inputs.............................................20 5.2 Hydraulic modelling results...................................................20
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