History in Structure

This site is entirely user-supported. See how you can help.

Caeau Weir

A Grade II Listed Building in Coedpoeth (Coed-poeth), Wrexham

We don't have any photos of this building yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »


Latitude: 53.0371 / 53°2'13"N

Longitude: -3.0391 / 3°2'20"W

OS Eastings: 330418

OS Northings: 349370

OS Grid: SJ304493

Mapcode National: GBR 74.DL89

Mapcode Global: WH88Y.9X1L

Plus Code: 9C5R2XP6+R8

Entry Name: Caeau Weir

Listing Date: 8 December 1995

Last Amended: 8 December 1995

Grade: II

Source: Cadw

Source ID: 16555

Building Class: Industrial

Location: On the River Clywedog, close to Caeau Bridge, 400m approx. W of Plas Power Chapel

County: Wrexham

Community: Coedpoeth (Coed-poeth)

Community: Esclusham

Locality: Bersham

Traditional County: Denbighshire

Find accommodation in


The origins of the weir may date back to the medieval period; the Clywedog had long been exploited as a power source prior to the establishment of an ironworks at Bersham at the end of the C17. The weir almost certainly formed part of the water power system for the ironworks during the C18, and then for Bersham Corn Mill from 1828. Its stepped profile was created some time between 1900 and 1911, perhaps to enhance its appearance as a feature within the park at Plas Power.


Stepped stonework, slightly curved in plan, with abutment walls of coursed and squared stone to either side, and a blue brick retaining wall linking the weir with Caeau Bridge to the S. A sluice gate at the top of the weir fed a leat which served the ironworks and later cornmill.

Reasons for Listing

Forms a group with Caeau Bridge.

An important element in the early water-power system developed to serve the ironworks (though probably with earlier origins) and subsequently the corn mill at Bersham. The weir also forms a striking feature within Plas Power Park.

Recommended Books

Other nearby listed buildings

BritishListedBuildings.co.uk is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact BritishListedBuildings.co.uk for any queries related to any individual listed building, planning permission related to listed buildings or the listing process itself.

British Listed Buildings is a Good Stuff website.