🇪🇬 Egypt · Hydraulic works
Sadd el-Kafara South Embankment — Wadi Garawi Secondary Dam Wing
Old Kingdom Early Dynastic–3rd Dynasty (2700 – 2600 BCE) · Egyptian Old Kingdom (Sneferu–Djoser period)
South wing of oldest masonry dam 2650 BCE 113 m long unfinished collapse in Wadi Garawi.