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Tagssluice
3 places carry this tag, across every kind and continent it appears in.
🇾🇪 Yemen · Hydraulic works
Sabaean to Himyarite (8th c BCE–6th c CE) · Sabaean / Himyarite
North sluice of Great Dam of Ma'rib (750 BCE–575 CE) — 23-m cut-stone control feeding northern oasis.
🇾🇪 Yemen · Hydraulic works
Sabaean to Himyarite (7th c BCE–6th c CE) · Sabaean / Himyarite
South sluice of Great Dam of Ma'rib (7th c BCE–575 CE) — 18-m limestone control for the grand southern oasis.
🇪🇬 Egypt · Buried city
Ptolemaic to Late Roman (270 BCE – 300 CE) · Greco-Roman Fayum
Moeris southwest harbour Meson 1–2 m silted behind Wadi Rayyan bar — quay 50 m at –1.8 m and sluice 6 m at –2 m.