🇮🇷 Iran · Hydraulic works
Qanat of Zarch, Yazd
Achaemenid to present ~700 BCE–present · Persian (Median/Achaemenid onward)
71 km 2,115-shaft Zarch qanat - world's longest - still feeding Yazd after 3,000 years.
🇮🇷 Iran · Hydraulic works
Qanat of Hasan Abad-e Moshir — Yazd Desert Water
Timurid to Safavid–Qajar (14th–19th c.), Sasanid precursor mythic · Yazdi Persian (Imam Reza pilgrimage route water, Zoroastrian Yazd water wisdom)
Yazd 45-km 70-m mother well qanat 150 L/s since Safavid, feeding Mehriz 800 ha pistachio under Shirkuh, UNESCO 550.
🇮🇷 Iran · Hydraulic works
Qanat-e Zarch – Longest Qanat in Iran
Achaemenid to present (2,500 years continuous) · Persian qanat engineers (Achaemenid, Sassanian, Safavid)
71-km Zarch qanat—longest gravity aquifer tunnel on Earth (500 BCE–Safavid).
🇮🇷 Iran · Hydraulic works
Qanat-e Zarch West Branch (Yazd Zarch Qanat Western Gallery)
Ilkhanid branch on Achaemenid–Sasanian trunk · Ilkhanid Yazd (branch) on Persian qanat tradition
Qanat-e Zarch west: 11.2-km Ilkhanid branch of world's longest 71-km Yazd qanat, UNESCO 1476.
🇮🇷 Iran · Hydraulic works
Qanat of Gonabad (Qasabeh Qanat)
Iron Age to Sassanian (Achaemenid to late antiquity) · Persian (Achaemenid–Sassanian) hydraulicians
Oldest functioning qanat 33 km, 360-m mother well, Achaemenid c.700 BCE, 150 L/s Persian Qanat UNESCO.
🇴🇲 Oman · Hydraulic works
Falaj al-Khatmeen (Birkat al-Mouz — UNESCO aflaj flagship)
Iron Age II to Islamic (1000 BCE–present; active) · Iron Age Oman (Lizq–Rumaylah) → Sasanian → Islamic Ya'aribah
3.5-km Iron Age daudi qanat (c.1000 BCE, 8 shafts) delivering 70 l/s — UNESCO aflaj flagship at Birkat al-Mouz.
🇮🇷 Iran · Hydraulic works
Qanat-e Gonabad South Gallery (Ghasemabad South Branch Qanat)
Achaemenid to present (520 BCE–ongoing) · Achaemenid Gonabad oasis (Khorasan piedmont)
South Gonabad gallery 4.1 km with 62 shafts 42 m mother well: Achaemenid 520 BCE saruj, 12 L/s to Ghasemabad saffron.
🇴🇲 Oman · Hydraulic works
Aflaj Irrigation Systems of Oman
Iron Age (1000 BCE) to present · Omani, Iron Age to Islamic
Approximately 3,000 still-active aflaj (singular falaj) thread Oman, of which five exemplars — Daris, Al-Khatmeen, Al-Malki, Al-Jeela and Al-Muyassar — are inscribed.