• Used when (1) surge height does not exceed 1.8m and (2) when there is enough area for the artificial hill to be raised
  • 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 500 heads of cattle
  • Two stories with a gross internal area of 715m2