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Former Kidwelly & Llanelly Canal aqueduct (also known as Glanstony Aqueduct)

A Grade II* Listed Building in Trimsaran, Carmarthenshire

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Latitude: 51.7243 / 51°43'27"N

Longitude: -4.278 / 4°16'40"W

OS Eastings: 242757

OS Northings: 205300

OS Grid: SN427053

Mapcode National: GBR GQ.BFNB

Mapcode Global: VH3M2.SXRJ

Entry Name: Former Kidwelly & Llanelly Canal aqueduct (also known as Glanstony Aqueduct)

Listing Date: 23 July 2003

Last Amended: 23 July 2003

Grade: II*

Source: Cadw

Source ID: 81323

Location: Spanning the Afon Gwendraeth Fawr NW of Morfa Mawr Farm, approximately 600m NW of Llandyry church.

County: Carmarthenshire

Community: Trimsaran

Community: Trimsaran

Locality: Llandyry

Traditional County: Carmarthenshire

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The Kidwelly & Llanelli Canal was begun in 1812 and was built between Llanelli and Kymer''s Canal (1769) on the E side of Kidwelly. The engineer was James Pinkerton. The aqueduct is said to have been dated 1815. Later the canal was taken over by the Burry Port and Gwendraeth Valley Railway and in 1869 it built a railway mainly on the infilled bed of the old canal. The BP&GVR was taken over by the Great Western Railway in 1922. The line closed in 1965.


A canal aqueduct built principally of coursed freestone, comprising 6 low segmental arches. On the E (upstream) side are V-shaped cutwaters with pyramidal caps. The R-hand (N) arch has partly fallen. The W side has overgrown (possibly square) cutwaters, and above the arches is mostly rebuilt in brick. The abutments are splayed on each bank.

Reasons for Listing

Listed grade II* as a fine early C19 canal aqueduct of national importance.
Scheduled Ancient Monument Cm 270 (CAM).

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