• Used when (1) surge height exceeds the maximum height of killa type of 1.8m (while still below 6m) and/or (2) in case the available area were too small for the artificial hill to be accomodated
  • Capacity (as school): 240 students divided in six classrooms in addition to a teachers’ room (ten teachers per room)
  • Capacity (as shelter): 2000 persons (500 households) and 400 heads of cattle
  • Three stories with a gross internal area of 1,150m2