Llangollen Canal not completed until 1805. To join the two halves up, a heavily engineered route from Trevor Basin via Ruabon and Brymbo to the River Dee at Chester was planned, but very little of it was built. Instead, the present route from Frankton to Hurleston Junction on the Chester Canal was constructed, and opened in 1805. To supply the system with water, a navigable feeder was built to Llantisilio, just beyond Llangollen, where the Horseshoe Falls weir was constructed on the River Dee to allow the water to be abstracted. As part of the Shropshire Union system, the canal from Hurleston
Horseshoe Falls (Wales) Heritage status because of the bold civil engineering solutions needed to construct a canal with no locks through such difficult terrain. Horseshoe Falls (Wales) Horseshoe Falls (Welsh: "Rhaeadr y Bedol") () is a weir on the River Dee near Llantysilio Hall in Denbighshire, Wales, about north-west of the town of Llangollen. The distinctively shaped weir, which is long, helps create a pool of water that can enter the Llangollen Canal (via an adjacent valve house and flow meter). The canal west of Pontcysyllte Aqueduct and the construction of the weir were authorised by an Act of Parliament obtained in 1804