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Mullock Bridge (partly in St Ishmaels community)

A Grade II Listed Building in St. Ishmael's (Llanisan-yn-Rhos), Pembrokeshire

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Latitude: 51.7307 / 51°43'50"N

Longitude: -5.1697 / 5°10'10"W

OS Eastings: 181213

OS Northings: 208305

OS Grid: SM812083

Mapcode National: GBR G3.G09C

Mapcode Global: VH1RP.BRVN

Entry Name: Mullock Bridge (partly in St Ishmaels community)

Listing Date: 23 February 1998

Last Amended: 23 February 1998

Grade: II

Source: Cadw

Source ID: 19392

Building Class: Transport

Location: Situated just S of the B4327 to Dale, where it crosses Winterton Marsh some 200m SW of Old Mullock Farm. Partly in St Ishmaels Community area.

County: Pembrokeshire

Town: Haverfordwest

Community: St. Ishmael's (Llanisan-yn-Rhos)

Community: Marloes and St. Brides

Locality: Mullock

Traditional County: Pembrokeshire

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Road bridge over marsh with long causeway to W and shorter length to E. Part of the old Haverfordwest to Dale road, disused since being bypassed by new bridge to N. The construction looks of the late C18 or early C19 but the origins may be much older, as by legend it was under Mullock Bridge that Sir Rhys ap Thomas crouched in 1485 to fulfil a prophecy that Henry Tudor would go to the crown only over Sir Rhys' back.


Road bridge, rubble stone, mostly red sandstone. Single arch with red stone rough voussoirs and parapets variously of grey limestone blocks, end-on red sandstone or cement. Causeway extends for a short distance, some 30m, to E, and a considerable distance, some 160m, to W, to an irregular curving line.

Reasons for Listing

A single-arch bridge and causeway of considerable antiquity and of landscape value in the marshland setting.

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