Diversion of the existing stream running through the DTSF basin via the northwest trending low-lying area to a discharge location in the southwest region. Works include setting out and survey, management of water in valley areas, removal of unsuitable materials, excavation of the highground between DTSF areas, construction of infill area to divert water from the DTSF basin, provision of erosion armours (rip-rap), stone pitching, haul road construction, and topsoil placement to support vegetation re-establishment.