Poor sub-soil drainage is a leading cause of progressive structural failure. Sub-soil drainage – the removal of excess water from the soil beneath structures – is an often-overlooked but critical ...
Ward 74 councillor Kayser-Echeozonjoku points out the erosion caused by the leak. Photo: Asanda Matlhare Johannesburg Roads Agency’s (JRA) head of operations Khaya Gqibitole, on March 26, confirmed to ...