History in Structure

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Former Tremadoc Tramway bridge over drainage ditch

A Grade II Listed Building in Porthmadog, Gwynedd

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Latitude: 52.9347 / 52°56'4"N

Longitude: -4.1415 / 4°8'29"W

OS Eastings: 256169

OS Northings: 339625

OS Grid: SH561396

Mapcode National: GBR 5P.M2G1

Mapcode Global: WH55L.CH3J

Entry Name: Former Tremadoc Tramway bridge over drainage ditch

Listing Date: 26 September 2005

Last Amended: 26 September 2005

Grade: II

Source: Cadw

Source ID: 85376

Location: To the N of Pensyflog Farm, on a footpath between Tremadog and Porthmadog, approximately 0.5km S of Tremadog Market Square.

County: Gwynedd

Town: Porthmadog

Community: Porthmadog

Community: Porthmadog

Locality: Tremadog

Traditional County: Caernarfonshire

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A simple bridge built over a drainage ditch for the Tremadoc Tramway of c1845, which carried iron ore from nearby Llidiart Ysbytty to Porthmadog harbour. From the late 1850s it was incorporated into the slate-carrying Gorseddau horse-drawn tramway, which became locomotive powered in the 1870s and operated until the 1890s. It is now a footpath.


Effectively a short culvert, the entrances of which have round arches with freestone voussoirs, but mainly concealed by vegetation.

Reasons for Listing

Listed for its special interest as one of the few surviving structures in Porthmadog associated with the former mineral railways supplying the port.

Other nearby listed buildings

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