A hydrology and hydraulic analysis has been undertaken to identify the drainage catchments, natural overland flow paths and flow rates and assess the potential solutions for a walk trail at Whitby Falls Farm in the Shire of Serpentine-Jarrahdale which experiences significant erosion and sediment deposition on a regular basis. Following the Shire’s review of preliminary concept options and their comparative costs a final preferred option was selected for drainage and footpath remedial works and included in the ultimate report.