History in Structure

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By-Pass Pond and Spillway with Sluice-Gate to south of upper lock chamber

A Grade II Listed Building in Carreghofa (Carreghwfa), Powys

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Coordinates

Latitude: 52.7748 / 52°46'29"N

Longitude: -3.1065 / 3°6'23"W

OS Eastings: 325453

OS Northings: 320262

OS Grid: SJ254202

Mapcode National: GBR 71.Y7WR

Mapcode Global: WH794.7JZ4

Entry Name: By-Pass Pond and Spillway with Sluice-Gate to south of upper lock chamber

Listing Date: 5 April 1993

Last Amended: 5 April 1993

Grade: II

Source: Cadw

Source ID: 14186

Building Class: Transport

County: Powys

Community: Carreghofa (Carreghwfa)

Community: Carreghofa

Locality: Carreghofa Locks

Traditional County: Montgomeryshire

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History

Probably 1821 when the Tanat Feeder was realigned to enter above the upper lock. The bypass helped regulate the water supply at N end of Montgomeryshire Canal.

Exterior

By-pass pond with curving rubble revetment, culverts brick-lined with repairs in later C19 blue brick. Spillway refaced in modern engineering bricks. Paddle gear in centre of spillway; rack and pinion system built on wooden frame with separately braced ratchet catch.

Reasons for Listing

Included for group value with the other canal structures in an exceptional location at Carreghofa Locks.

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