Ancient Monuments

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Caledonian Canal,Corpach Locks and Basin

A Scheduled Monument in Caol and Mallaig, Highland

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Latitude: 56.8421 / 56°50'31"N

Longitude: -5.121 / 5°7'15"W

OS Eastings: 209736

OS Northings: 776636

OS Grid: NN097766

Mapcode National: GBR FBQM.YXH

Mapcode Global: WH1FR.99P3

Entry Name: Caledonian Canal,Corpach Locks and Basin

Scheduled Date: 13 April 1992

Source: Historic Environment Scotland

Source ID: SM5297

Schedule Class: Cultural

Category: Industrial: inland water

Location: Kilmallie

County: Highland

Electoral Ward: Caol and Mallaig

Traditional County: Argyllshire


The monument consists of the sea lock, basin and two locks at the western end of the Caledonian Canal, together with associated working areas. The sea lock has been modified by moving the lock gates at the inner end, but is otherwise largely as built. The basin has been slightly altered, but is substantially as constructed. The two upper locks are standard Caledonian Canal locks arranged as a staircase. All the lock chambers are of masonry. The lighthouse is included in the scheduling, but the modern lock gates and hydraulic control gear are excluded. The area to be scheduled is irregularly shaped, a maximum of 440m by 80m, as marked in red on the accompanying map.

Source: Historic Environment Scotland

Statement of Scheduling

The monument is of national importance as a major component of the Caledonian Canal, built between 1803 and 1822. The canal was designed by Thomas Telford and financed directly by Government. This sea lock proved very difficult to build, and its completion was a major engineering achievement. The complex is being scheduled as part of a programme of scheduling also involving the listing of buildings.

Source: Historic Environment Scotland



RCAHMS records the monument as NN 07 NE 9.06.

Source: Historic Environment Scotland

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