Bridge repairs and strengthening at Pont Pengwern, Llansannan, Conwy

“The application seeks listed building consent for several strengthening and repair works to the deteriorating bridge, maintaining its structural integrity and to ensure the important road link is continued.”

“Proposed works include: • Vacuum grouting internal structure; • Installation of pattress plates; • Installation of concrete slab and waterproofing layer; • Take down and rebuild bulging areas of structure; • Take down and rebuild parapet walls; and • Works also involve the installation of scour protection measures within the river channel beneath.”

“This listed building consent relates to the Grade II listed Pont Pengwern, an historic stone road bridge carrying the B5382 over an unnamed tributary of the Afon Aled between Llangernyw and Denbigh.”

“The bridge is in poor condition following a collapse of the wing wall. A temporary sandbag retaining strucutre was installed in January 2025 to allow the road to be opened.”

“B) To refer this listed building consent application to Cadw to consider if this listed building consent application needs to be determined by the Welsh Government if the local planning authority is minded to grant conditional listed building consent.”

“C) To authorise the Development and Building Control Manager to issue a decision under delegation if the Welsh Government does not call in this listed building consent application for their determination.”

“An addendum to the report was presented, highlighting the following: • The Ecologist recommended a pre-commencement condition requiring an updated ecological assessment, including a survey of cracks and voids within the bridge for bats and nesting birds. • The updated assessment would also need to identify appropriate biodiversity enhancement measures.”

“A) That the Planning Committee be minded to grant conditional listed building consent.”

“B) That the listed building consent application be referred to Cadw to determine whether the application should be called in for determination by the Welsh Government.”

“C) That the Development and Building Control Manager be authorised to issue a decision under delegation if the Welsh Government does not call-in the listed building consent application for determination.”