Approach and Outcomes
The hydraulic modelling of the Upper Condamine River catchment was undertaken using a coupled 1D/2D MIKE FLOOD Flexible Mesh model. The model covered an area of approximately 2,230 km2 with mesh elements ranging from 3 m2 to 3,600 m2 in area. Over 30 bridges and culverts were represented in a 1D MIKE 11 model and coupled to the mesh topography. The model was validated to the December 2010 flood event. Comprehensive mapping showing modelled surface elevations, velocities, depths, flood hazard and hydraulic categories for the full set of modelled events was also produced to inform future Planning Scheme amendments.