Aeolian deposits at Henties Bay, central Namib coast: provenance and engineering implications. During the winter months high velocity, low frequency north-easterly berg winds blow sand sized fluvial material out of the lower Omaruru river into a discrete sand stream that passes through the northern residential area of Henties Bay, a coastal resort in the central Namib. The resultant sand drift buildup and dune encroachment problems experienced by the residents could be alleviated by the construction of sand trap fences on the north-eastern margin of the development and on the plains where the aeolian sand stream diverges from the main course of Omaruru river. Keywords: Aeolian, Henties Bay, Omaruru river, encroachment, sand traps.