🇰🇭 Cambodia · Hydraulic works
West Baray — Angkor Hydraulic Reservoir
Angkor (Baphuon style middle Angkor) · Khmer Hindu (Suryavarman I court)
Khmer 7.8×2.1 km reservoir 1050 CE 53 million m³ with West Mebon island temple, hydraulic empire core.
🇮🇳 India · Hydraulic works
Dholavira Reservoirs — Harappan Urban Hydraulics
Harappan (Early to Late Harappan 3000–1800 BCE) · Harappan (Indus Valley Civilization Kotada Timba)
Harappan desert city 16 rock-cut reservoirs and dam-fed canals 3000–1800 BCE on Kutch island.
🇸🇦 Saudi Arabia · Hydraulic works
Wadi Hanifah Dams (Diriyah Dam System)
Najdi Emirate to First Saudi State · Najdi oasis (Diriyah Amirship)
Wadi Hanifah: 6 Najdi 15th-18th c. wadi dams at Diriyah UNESCO site, Riyadh 24.73N 46.57E.
🇱🇰 Sri Lanka · Hydraulic works
Abhaya Wewa (Abhayavapi) — Anuradhapura Ancient Reservoir
Anuradhapura period (400 BCE – 10th c. CE) · Anuradhapura Sinhalese (Sinhala hydraulic civilisation)
400 BCE 350-ha 3.8 Mm³ tank with Bisokotuwa sluice — world's earliest valve 3rd c. BCE.
🇮🇳 India · Hydraulic works
Hampi Aqueduct and Tungabhadra Hydraulic System
Medieval Indian (Vijayanagara Empire) · Vijayanagara Hindu imperial (Telugu–Kannada)
Vijayanagara 5-km aqueduct with 19 tanks and stepped pushkarani feeding 500k city 14th–16th c.