TreeAlive
‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

Valve tower at Upper Lliw reservoir with bridge and bridge abutment

Mawr, Swansea, Wales

The record

Designation
Listed building, Grade II
Broad class
Civil
Date of designation
23 May 2003
Locality
Cwmlliw
Town
Swansea
Community
Mawr
Unitary authority
Swansea
Country
Wales
Coordinates
51.73607, -3.94127
Cadw reference
81067

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Situated at SW corner of reservoir, reached by gated road of some 2.5. km up from visitor centre at Lower Lliw reservoir.

Valve tower to reservoir constructed in 1886-94 for Swansea Corporation under Ralph Henry Wyrill, engineer.

Circular valve tower standing a little out from shore, sandstone ashlar with leaded domed roof, classical style. Tower has finely cut channelled rustication with big curved cornice moulding, deep plinth with ogee-moulded top carried around an arched doorway on W side. Three arched windows also in moulded surrounds with stone sills. Below plinth is a big semi-circular or bull-nose base moulding, over channelled stonework continuing underwater. Dome has raised ribs and pierced metal crown around top.
Delicate footbridge with shallow arch made of 4 curved cast-iron pieces with open spandrels, each pair meeting in centre, and carrying iron railings with ball finials to posts and horizontal rails. W end of bridge rests on semi-circular abutment with big ring moulding matching that on tower and two quadrant curves of railings.

Included for its special architectural interest as a particularly fine neo-classical tower, superbly built.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
See your own family's places on a living map