Aflaj Irrigation Systems of Oman


World Heritage Identification Number: 1207

World Heritage since: 2006

Category: Cultural Heritage

Transboundary Heritage: No

Endangered Heritage: No

Country: 🇴🇲 Oman

Continent: Asia

UNESCO World Region: Arab States

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Ancient Water Management: The Aflaj Irrigation Systems of Oman

The Aflaj Irrigation Systems of Oman, inscribed as a UNESCO World Heritage Site in 2006, showcase an ingenious and sustainable approach to water management that has been in use since at least AD 500. These systems are found in the regions of Dakhiliyah, Sharqiyah, and Batinah, although their roots may extend back even further, with archaeological evidence suggesting irrigation systems existed in this arid region as early as 2500 BC.

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UNESCO Description of the World Heritage Site

The property includes five aflaj irrigation systems and is representative of some 3,000 such systems still in use in Oman. The origins of this system of irrigation may date back to AD 500, but archaeological evidence suggests that irrigation systems existed in this extremely arid area as early as 2500 BC. Using gravity, water is channelled from underground sources or springs to support agriculture and domestic use. The fair and effective management and sharing of water in villages and towns is still underpinned by mutual dependence and communal values and guided by astronomical observations. Numerous watchtowers built to defend the water systems form part of the site reflecting the historic dependence of communities on the aflaj system. Threatened by falling level of the underground water table, the aflaj represent an exceptionally well-preserved form of land use.

Encyclopedia Record: Aflaj Irrigation Systems of Oman

The Aflaj Irrigation Systems of Oman are ancient water harvesting, transportation, storage and distribution systems from AD 500 located in the Omani regions of Dakhiliyah, Sharqiyah and Batinah. They do however represent a type of irrigation system with a history going back 5,000 years in the Middle East, one type being known from Persia under the name qanat or kariz. Aflaj systems may include an underground horizontal section accessed by vertical shafts, which collects water from the aquifer by using the same technology as the Iranian qanat systems, and always include surface channels for transport and distributiin.

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Additional Site Details

Area: 1,455.949 hectares

UNESCO Criteria: (v) — Outstanding example of traditional human settlement

Coordinates: 22.9988888889 , 57.5360555555

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Image of Aflaj Irrigation Systems of Oman

© Paolotacchi, CC BY-SA 3.0 Resized from original. (This derivative is under the same CC BY-SA license.)

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Nearby World Heritage Sites

Bahla Fort
24 km — Oman
Archaeological Sites of Bat, Al-Khutm and Al-Ayn
86 km — Oman
Ancient City of Qalhat
192 km — Oman
Cultural Sites of Al Ain (Hafit, Hili, Bidaa Bint Saud and Oases Areas)
213 km — United Arab Emirates
Faya Palaeolandscape
291 km — United Arab Emirates

Country Information: Oman

Flag of Oman

Official Name: Sultanate of Oman

Capital: Muscat

Continent: Asia

Population (2024): 5,281,538

Population (2023): 5,049,269

Population (2022): 4,730,226

Land Area: 309,500 sq km

Currency: Omani rial (OMR)

Country Data Sources

Last updated: January 18, 2026

Portions of the page Aflaj Irrigation Systems of Oman are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Aflaj Irrigation Systems of Oman, licensed under CC BY-SA 4.0. Changes made. Additional original content by World Heritage Explorer (WHE), licensed under CC BY-SA 4.0. WHE is not affiliated with UNESCO or the World Heritage Committee. Legal Notice. Privacy Policy.

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