The department of water & sanitation (DWS) on Tuesday said it was investigating the integrity of the privately-owned Tiryvillle Dam near Kariega in the Eastern Cape after reports of the dam being at risk of failure due to the recent flash floods. The Nelson Mandela Bay municipality this week relocated about 200 families residing at Lapland informal settlement about 850m downstream of the dam as a precautionary measure. The department said it had dispatched a team of engineers to assess the condition of the dam and was in continuous engagement with the municipality. “The DWS…