Pontcysyllte Aqueduct and Canal


World Heritage Identification Number: 1303

World Heritage since: 2009

Category: Cultural Heritage

Transboundary Heritage: No

Endangered Heritage: No

Country: 🇬🇧 United Kingdom of Great Britain and Northern Ireland

Continent: Europe

UNESCO World Region: Europe and North America

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Pontcysyllte Aqueduct and Canal: A Marvel of Industrial Engineering

The Pontcysyllte Aqueduct and Canal, located in the picturesque Vale of Llangollen in northeastern Wales, stands as a testament to the ingenuity and ambition of the Industrial Revolution. Inscribed as a UNESCO World Heritage Site in 2009, this 18-kilometer long waterway system showcases the harmonious blend of artistic vision, technical prowess, and practical problem-solving that characterized the era.

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UNESCO Description of the World Heritage Site

Situated in north-eastern Wales, the 18 kilometre long Pontcysyllte Aqueduct and Canal is a feat of civil engineering of the Industrial Revolution, completed in the early years of the 19th century. Covering a difficult geographical setting, the building of the canal required substantial, bold civil engineering solutions, especially as it was built without using locks. The aqueduct is a pioneering masterpiece of engineering and monumental metal architecture, conceived by the celebrated civil engineer Thomas Telford. The use of both cast and wrought iron in the aqueduct enabled the construction of arches that were light and d strong, producing an overall effect that is both monumental and elegant. The property is inscribed as a masterpiece of creative genius, and as a remarkable synthesis of expertise already acquired in Europe. It is also recognized as an innovative ensemble that inspired many projects all over the world.

Encyclopedia Record: Pontcysyllte Aqueduct

The Pontcysyllte Aqueduct is a navigable aqueduct that carries the Llangollen Canal across the River Dee in the Vale of Llangollen in northeast Wales.

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Additional Site Details

Area: 105 hectares

UNESCO Criteria: (i) — Masterpiece of human creative genius
(ii) — Significant interchange of human values
(iv) — Outstanding example of a type of building or landscape

Coordinates: 52.9702777778 , -3.0877777778

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Image of Pontcysyllte Aqueduct and Canal

Adrian Pingstone, Public domain

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Nearby World Heritage Sites

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The Slate Landscape of Northwest Wales
71 km — United Kingdom of Great Britain and Northern Ireland
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Derwent Valley Mills
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Country Information: United Kingdom of Great Britain and Northern Ireland

Flag of United Kingdom of Great Britain and Northern Ireland

Official Name: United Kingdom of Great Britain and Northern Ireland

Capital: London

Continent: Europe

Population (2024): 69,226,000

Population (2023): 68,492,000

Population (2022): 67,604,000

Land Area: 241,930 sq km

Currency: British pound (GBP)

Country Data Sources

Last updated: January 18, 2026

Portions of the page Pontcysyllte Aqueduct and Canal are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Pontcysyllte Aqueduct, 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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