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Pontcysyllte Aqueduct: A Marvel of Industrial Age Engineering in North Wales

Cross the world’s longest and highest navigable aqueduct, a stunning feat of engineering and UNESCO World Heritage marvel in North Wales.

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Spanning the Dee Valley near Llangollen, the Pontcysyllte Aqueduct is the world's longest and highest navigable aqueduct. Designed by Thomas Telford and completed in 1805, this UNESCO World Heritage Site carries the Llangollen Canal across 307 meters of breathtaking landscape atop 19 stone piers. Visitors can walk, boat, or paddleboard across this 38-meter-high cast-iron and stone structure, experiencing a unique blend of engineering genius and natural beauty.

A brief summary to Pontcysyllte Aqueduct

  • Station Rd, Llangollen, Trevor, LL20 7TY, GB
  • +441978822912
  • Visit website
  • Duration: 1 to 3 hours
  • Mid ranged
  • Environment icon Outdoor
  • Mobile reception: 4 out of 5
  • Monday 12 am-12 am
  • Tuesday 12 am-12 am
  • Wednesday 12 am-12 am
  • Thursday 12 am-12 am
  • Friday 12 am-12 am
  • Saturday 12 am-12 am
  • Sunday 12 am-12 am

Local tips

  • Visit the Trevor Basin Visitor Centre for free interactive exhibits and a deeper understanding of the aqueduct’s engineering and history.
  • Consider taking a canal boat trip or horse-drawn boat ride across the aqueduct for a unique perspective over the Dee Valley.
  • Bring a camera to capture the spectacular panoramic views from the aqueduct and nearby Ty Mawr Country Park.
  • If you’re adventurous, try kayaking or paddleboarding across the aqueduct, but kneel on the board for stability.
  • Wear comfortable shoes for walking the towpath and explore the surrounding Llangollen area’s heritage sites and scenic trails.
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Getting There

  • By Car

    Access Pontcysyllte Aqueduct via the A539 from Ruabon towards Llangollen. There are three main car parks nearby, including one on Station Road for disabled badge holders. Parking is free but limited, so arriving early is advised. Avoid parking at Froncysyllte Basin as spaces are reserved for residents.

  • By Train and Bus

    Take a train to either Chirk or Ruabon stations. From there, hourly buses (Arriva Bus Wales number 5) run to the World Heritage Site, stopping near Trevor Basin and Llangollen. Bus journeys take approximately 20 to 30 minutes. Check current timetables for schedules.

  • By Heritage Railway

    The Llangollen Heritage Steam Railway operates between Llangollen and Corwen, offering a scenic 10-mile journey. The railway station in Llangollen is a short taxi or bus ride from the aqueduct. This option is seasonal and ideal for combining a heritage experience with your visit.

  • Walking

    For active visitors, the Llangollen Canal towpath offers a scenic 5.5-mile walk from Llangollen town centre to the aqueduct. The path is mostly flat and accessible, taking around 2 hours. Wear sturdy footwear and allow time to enjoy the views.

Pontcysyllte Aqueduct location weather suitability

  • Weather icon Any Weather
  • Weather icon Rain / Wet Weather
  • Weather icon Clear Skies
  • Weather icon Mild Temperatures

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Discover more about Pontcysyllte Aqueduct

Engineering Masterpiece of the Industrial Revolution

The Pontcysyllte Aqueduct stands as a monumental achievement of late 18th and early 19th-century civil engineering. Designed by the renowned engineer Thomas Telford and completed in 1805, the aqueduct carries the Llangollen Canal over the River Dee valley. Stretching 307 meters in length and soaring 38 meters above the valley floor, it is constructed from local stone and cast iron. The aqueduct features 19 slender masonry piers supporting 19 arches, with the canal trough formed by transverse cast iron plates. This innovative use of cast iron allowed for a lightweight yet strong structure, a pioneering approach at the time.

A Living Heritage and Community Icon

Named after the nearby township of Cysyllte, the aqueduct remains deeply connected to the local community. It is managed by the Canal and River Trust, which ensures ongoing conservation and maintenance. The site includes the Trevor Basin Visitor Centre, offering interactive exhibits, videos, and educational activities that bring the aqueduct’s history and engineering to life. The aqueduct has also been a stage for notable events, such as the Olympic torch relay, underscoring its cultural significance.

Visitor Experience and Activities

Visitors can cross the aqueduct on foot along the towpath, enjoying panoramic views of the Dee Valley and surrounding Clwydian Range. For a more immersive experience, canal boat trips traverse the aqueduct, some operated by historic horse-drawn boats, evoking the canal’s heritage. Adventurous visitors can kayak or paddleboard across, with the unique sensation of gliding over a ‘stream in the sky.’ Nearby Ty Mawr Country Park offers stunning distant views and picnic spots, while the Llangollen area provides additional attractions such as the heritage steam railway and historic town sites.

Architectural and Natural Setting

The aqueduct’s elegant cast iron arches contrast beautifully with the rugged Welsh landscape, creating an iconic visual landmark. The structure’s height is equivalent to stacking nine double-decker buses, emphasizing its impressive scale. The canal holds approximately 1.5 million litres of water, and the aqueduct’s design ingeniously balances the forces involved, including the displacement of water by boats crossing it. The surrounding area is designated an Area of Outstanding Natural Beauty, enhancing the visitor’s connection to both industrial heritage and nature.

Conservation and World Heritage Status

Pontcysyllte Aqueduct is part of an 11-mile-long UNESCO World Heritage Site that includes the Llangollen Canal and associated structures such as tunnels, viaducts, and embankments. It is recognized for its outstanding universal value as a masterpiece of creative genius and engineering innovation. The site is a Scheduled Ancient Monument of national importance, with ongoing efforts to preserve its integrity for future generations. Visitors are encouraged to respect the site’s heritage and natural environment during their visit.

Accessibility and Surrounding Attractions

The aqueduct is accessible via nearby towns such as Llangollen and Trevor, with parking and visitor facilities including restrooms and a visitor centre. Public transport options include buses from Wrexham and Ruabon, and heritage train services on the Llangollen Railway. The area offers a variety of outdoor activities, historic sites, and scenic walks, making it a rich destination for cultural and nature tourism.

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