Thomas Telford designed the weir specifically to address the water supply demands of the Llangollen Canal during its construction.
The weir's curved design acts as an efficient means of maximizing the intake of water from the River Dee while managing flow velocity.
It remains an active functional asset, still providing the main water supply for the Llangollen Canal today.
The structure is integral to the UNESCO status awarded to the Pontcysyllte Aqueduct and Canal World Heritage Site.
The site acts as the symbolic starting point for the canal journey toward the aqueduct located further east.
Horseshoe Falls is a curved masonry weir designed by Thomas Telford to divert water from the River Dee into the Llangollen Canal. Completed in 1806, the weir serves as the primary water feeder for the canal system that extends toward the Pontcysyllte Aqueduct. The structure features a distinctive semi-circular shape, measuring approximately 130 meters in length, which stabilizes water flow levels. It is a key component of the UNESCO World Heritage Site designation covering the canal corridor. The area functions as a public park setting, facilitating access to the riverbanks and canal towpath. Pedestrian access is maintained via a level path suitable for walking and cycling. The site is located at the western terminus of the Llangollen Canal section.
From the south bank, looking directly toward the center of the arc to capture the geometry of the weir against the river flow.
Wear waterproof footwear, as the riverbank paths can become muddy during periods of rainfall.
Follow the marked towpath to connect your visit to the nearby Llangollen town center.
Bring binoculars if interested in spotting local birdlife, such as herons, which frequent the weir pool.
Do not attempt to swim in the weir pool, as the water currents and depth are unpredictable and hazardous.
Keep dogs on a lead to protect local livestock and wildlife; stay on marked paths to avoid erosion of the riverbank.
