Planning permission granted for new bridge on Montgomery Canal
We have been granted planning permission to build a new road bridge carrying the B4398 over the Montgomery Canal, marking a significant step forward in the restoration of the historic waterway.
An artist impression of the new Williams Bridge
Powys County Council has approved plans for a new lift bridge to replace the former Williams Bridge near Llanymynech. The original bridge was removed in 1980 and replaced with a flat road crossing built almost at water level, preventing boats from navigating through this section of the canal.
The new bridge will maintain access for road users while allowing for potential future boat movements to once again travel along this stretch of waterway. The scheme is a key part of efforts to restore a four-mile section of the canal between Llanymynech and Maerdy and complements work already close to completion on the nearby Carreghofa Lane bridge.
Construction is expected to begin in early 2027 with a temporary closure of the B4398 required during the works, with a signed diversion route in place for motorists.
Extensive ecological surveys and assessments have been carried out by our environmental specialists to ensure biodiversity is protected throughout construction.
The Montgomery Canal is designated as both a Site of Special Scientific Interest (SSSI) and a Special Area of Conservation (SAC) because of the rare and protected habitats and species it supports.
The latest phase of the canal's restoration builds on decades of work by volunteers, partners and local communities. We are delivering the project in partnership with Powys County Council and with support from the Montgomery Canal Partnership.
The current site of Williams Bridge on the Montgomery Canal
Richard Harrison, principal project manager at Glandŵr Cymru, said: "Securing planning permission for the new Williams Bridge is a major step forward for the Montgomery Canal restoration. Reinstating a navigable crossing at this location will help reconnect the waterway while ensuring the canal continues to provide benefits for local communities, visitors and wildlife.
"With the new nearby Carreghofa Lane bridge nearing completion, the creation of the Wern Pond and Vyrnwy wetland reserves, and plans progressing to safeguard the Vyrnwy Aqueduct, it's encouraging to see key elements of the restoration programme coming together.
"Together, these projects will help unlock the canal's potential, bringing environmental, social and economic benefits to the area for generations to come."
Artist impression of the new Williams Bridge
Councillor Glyn Preston, Cabinet Member for a More Prosperous Powys, said: "This is an exciting step forwards in the restoration of this section of the Montgomery Canal. The new lift bridge will make it possible for boats to sail along the canal in the future, as well as ensuring that road users can still access it.
“It's also crucial that extensive ecological surveys have been completed to ensure that biodiversity will be protected, keeping wildlife safe while restoring a valuable asset for locals and visitors to enjoy."
John Dodwell, chair of the Montgomery Canal Partnership, said: "The rebuilding of Williams Bridge brings us another step closer to restoring a fully navigable waterway between Welshpool and Llanymynech.
"The Montgomery Canal is a unique asset, supporting both wildlife conservation and sustainable tourism. It's particularly pleasing to see restoration work being delivered alongside the creation of new nature reserves, ensuring conservation and navigation continue to go hand in hand."
