Katherine Downstream Horticultural Water Supply: weirs and offstream storages

J. Paiva
Power and Water Authority, Water Resource Division,

This report describes the preliminary hydrological and engineering feasibility of offstream and weir storages for horticultural water supply, in the Katherine downstream area between Katherine and the Katherine/ King confluence. Offstream storages, in the form of ring tanks were estimated using the 2DAM storage transfer simulation model. For weir storage the extents of area irrigable for different weir heights were obtained using the DAMYIELD storage simulation model. The environmental impacts caused by weir impoundment on the ecology, hydrology and the socio-economic environment of the Katherine downstream area and the need for assessment of same if weir storage is considered, have been discussed.