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Umkomaas, eThekwini Metropolitan Municipality, KwaZulu-Natal, South Africa (-30.20639 30.79611)
The river's basin covers about 4,315 km2, annual discharge is approximately 1 x 106 m3 and sediment load is an estimated 900 000 tons per year. Some parts of the river basin are vulnerable to flooding due to the steep topography and weather systems, such as intense thunderstorms and cut-off lows. This is exacerbated by land degradation and impervious urban areas. Some floods have resulted in loss of life, destruction of properties where development has encroached on floodplains in densely populated areas, and damage to roads and bridges.