🇾🇪 Yemen · Hydraulic works
Wadi Jirdan Ancient Dam – Hadramawt
Hadhrami Old South Arabian · Hadhramawt kingdom
220-m Hadhrami diversion dam (700 BCE–400 CE) on Wadi Jirdan tributary — Hadramawt palm irrigation.
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2 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.
🇾🇪 Yemen · Hydraulic works
Hadhrami Old South Arabian · Hadhramawt kingdom
220-m Hadhrami diversion dam (700 BCE–400 CE) on Wadi Jirdan tributary — Hadramawt palm irrigation.
🇾🇪 Yemen · Hydraulic works
Sabaean c.750 BCE–575 CE; sluice extension · Sabaean (South Arabian)
Marib South Sluice (Masaq) – Sabaean Great Dam's mass southern sluice/spillway assembly (14m high, 600m dam length, 30,000 ha irrigation).