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Ham Lock, Canal Bridge and Weir

A Grade II Listed Building in Brimscombe and Thrupp, Gloucestershire

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Coordinates

Latitude: 51.7272 / 51°43'38"N

Longitude: -2.2047 / 2°12'16"W

OS Eastings: 385956

OS Northings: 203189

OS Grid: SO859031

Mapcode National: GBR 1MS.MFM

Mapcode Global: VH94Y.QVT8

Entry Name: Ham Lock, Canal Bridge and Weir

Listing Date: 24 February 1987

Last Amended: 22 July 2011

Grade: II

Source: Historic England

Source ID: 1340654

English Heritage Legacy ID: 131962

Location: Brimscombe and Thrupp, Stroud, Gloucestershire, GL5

County: Gloucestershire

District: Stroud

Civil Parish: Brimscombe and Thrupp

Built-Up Area: Stroud

Traditional County: Gloucestershire

Lieutenancy Area (Ceremonial County): Gloucestershire

Church of England Parish: Brimscombe Holy Trinity

Church of England Diocese: Gloucester

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Summary

A canal lock and adjacent bridge built circa 1785 for the Thames and Severn Canal Company.

Description

MATERIALS: red brick with ashlar limestone dressings.

DESCRIPTION: the BRIDGE is set across the tail of the lock. Roughly rectangular on plan, its wing walls are gently curved outwards, and are battered, ending in pilasters. The arched opening is segmental, almost semi-circular. The arch has ashlar springers, and there is a plain curved string to the extrados. The parapet is plain, and it and the flank walls have plain stone copings. The LOCK has brick-built walls, which widen to the entrance at the south end. It has large stone copings and ashlar dressings at the gate positions, where there are iron fittings to the gateposts. One original lock-gate partially survives.

SUBSIDIARY FEATURES: the group also includes the adjacent BY-WEIR, which formed part of the site's water management system. This structure is funnel-shaped and brick-built, with stone copings; this guides water to a small rectangular opening.

HISTORY: the Stroudwater Navigation, built in 1775-9, was designed to link the River Severn at Framilode to Stroud, allowing coal to be brought from Shropshire, Staffordshire and the Forest of Dean to the textile mills of the Stroud valleys. The Thames and Severn Canal, constructed in 1783-9, was designed to run eastwards from Stroud, eventually linking the River Severn to the River Thames at Inglesham, near Lechlade. The Cotswold Canals, as they are also known, were generally successful, though the Thames and Severn in particular suffered serious technical failings which compromised its profitability; despite this, both canals continued in use well into the C20.

The lock, bridge and by- weir at Ham Lock were constructed circa 1785, on a section of the Thames and Severn Canal approaching the Brimscombe Port exchange, which was designed to accommodate Severn trows rather than Thames barges.

History

The Stroudwater Navigation, built in 1775-9, was designed to link the River Severn at Framilode to Stroud, allowing coal to be brought from Shropshire, Staffordshire and the Forest of Dean to the textile mills of the Stroud valleys. The Thames and Severn Canal, constructed in 1783-9, was designed to run eastwards from Stroud, eventually linking the River Severn to the River Thames at Inglesham, near Lechlade. The Cotswold Canals, as they are also known, were generally successful, though the Thames and Severn in particular suffered serious technical failings which compromised its profitability; despite this, both canals continued in use well into the C20.

The lock, bridge and by-weir at Ham Lock were constructed circa 1785, on a section of the Thames and Severn Canal approaching the Brimscombe Port exchange, which was designed to accommodate Severn trows rather than Thames barges.

Reasons for Listing

Ham Lock, bridge and by-weir are designated at Grade II, for the following principal reasons:
Historic interest: as part of the C18 Thames and Severn Canal
Intactness: the bridge is largely unaltered, and the lock remains clearly legible
Functional relationship: the three elements together form a cogent and functionally-related group which demonstrates clearly how such structures functioned together

Selected Sources

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