Maritz, Ashley AmyWessels, PieterVan Vuuren, Fanie2016-02-232016-02-232015-08Maritz, A, Wessels, P & Van Vuuren, F 2015, 'Modelling of composite type variation of the Crump weir', Civil Engineering, vol. 23, no. 7, pp. 36-45.1021-2000http://hdl.handle.net/2263/51498The accurate measuring of flow in rivers is essential for optimal utilisation of the surface water resources in South Africa. Long-term hydrological records containing the characteristic parameters of change and variability are required for the effective management and conservation of scarce water resources. The runoff from catchments is measured by using gauging structures in rivers and at dams. In South African rivers, the use of compound gauging weirs is common due to the large variation in flows. This allows for accurate measuring of discharge in a river section at low and high flow rates (Wessels & Rooseboom 2009).enSouth African Institution of Civil EngineeringRiversAccurate measuringWater resourcesSouth Africa (SA)Flow in riversSurface water resourcesScarce water resourcesConservationGauging weirsEngineering, built environment and information technology articles SDG-06SDG-06: Clean water and sanitationArticle