🇸🇦 Saudi Arabia · Hydraulic works
Sadd al-Khanaq Dam – Hijaz (Khaibar Oasis northern dam)
Late Pre-Islamic to Early Islamic · Nabataean–Himyarite to Umayyad
110-m two-phase dam (320 BCE–750 CE) on Wadi al-Khanaq — Khaibar oasis northern reservoir.
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🇸🇦 Saudi Arabia · Hydraulic works
Late Pre-Islamic to Early Islamic · Nabataean–Himyarite to Umayyad
110-m two-phase dam (320 BCE–750 CE) on Wadi al-Khanaq — Khaibar oasis northern reservoir.