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The Uilkraals catchment lies within the Overberg District Municipality in the Western Cape
Province and the estuary is located within the Overstrand Local Municipality (Figure 3 and
Figure 4). The estuary enters the sea at 34˚36’23”S 19˚24’33”E when the estuary mouth is
open (Whitfield 2000). The river is approximately 46 km in length from the mouth to the
source of the Sondagskloof, one of its major tributaries. The junction of the Sondagskloof and
the Perdeberg rivers forms the Uilkraals at an approximate elevation of 200 m roughly 30 km
from the mouth. In the lower catchment the Boesmans River joins the Uilkraals approximately
6 km from the mouth. The size of the estuary from the mouth to the the confluence of the
Uilkraals and Boesmans is approximately 260 ha (Heydorn & Bickerton 1982). A bridge
approximately 220 m long spans the estuary approximately 800 m from the mouth. A
causeway approximately 120 m in length supports the eastern road access to the bridge whilst
the remaining 100 m is spanned and supported by large concrete pylons (Heydorn & Bickerton
1982).
Figure 4. Overstrand Local Municipality map showing the main settlements. The Uilkraals Estuary
(shown by the arrow) is located between Gansbaai and Pearly Beach (Source: Overstrand SDF 2009).
Uilkraals Estuary Situation Assessment
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