Dam in Riyadh Hanabej dam Location of Hanabej dam in Saudi Arabia Country Saudi Arabia Location Riyadh Coordinates 24°37′55.089″N 46°42′54.233″E﻿ / ﻿24.63196917°N 46.71506472°E﻿ / 24.63196917; 46.71506472Coordinates: 24°37′55.089″N 46°42′54.233″E﻿ / ﻿24.63196917°N 46.71506472°E﻿ / 24.63196917; 46.71506472 Purpose Other Opening date 1979; 42 years ago (1979) Owner(s) Ministry of Environment, Water and Agriculture (Saudi Arabia)