Scheduled Monument

Caledonian Canal,Corpach Locks and BasinSM5297

Status: Designated


Where documents include maps, the use of this data is subject to terms and conditions (

The legal document available for download below constitutes the formal designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The additional details provided on this page are provided for information purposes only and do not form part of the designation. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within this additional information.


Date Added
Supplementary Information Updated
Industrial: dock, harbour, lock; engine, engine house; inland water; light, warning, signal
Local Authority
NN 09736 76636
209736, 776636


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.

Statement of National Importance

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.



RCAHMS records the monument as NN 07 NE 9.06.

About Scheduled Monuments

Historic Environment Scotland is responsible for designating sites and places at the national level. These designations are Scheduled monuments, Listed buildings, Inventory of gardens and designed landscapes and Inventory of historic battlefields.

We make recommendations to the Scottish Government about historic marine protected areas, and the Scottish Ministers decide whether to designate.

Scheduling is the process that identifies, designates and provides statutory protection for monuments and archaeological sites of national importance as set out in the Ancient Monuments and Archaeological Areas Act 1979.

We schedule sites and monuments that are found to be of national importance using the selection guidance published in Designation Policy and Selection Guidance (2019)

Scheduled monument records provide an indication of the national importance of the scheduled monument which has been identified by the description and map. The description and map (see ‘legal documents’ above) showing the scheduled area is the designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The statement of national importance and additional information provided are supplementary and provided for general information purposes only. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within the statement of national importance or additional information. These records are not definitive historical or archaeological accounts or a complete description of the monument(s).

The format of scheduled monument records has changed over time. Earlier records will usually be brief. Some information will not have been recorded and the map will not be to current standards. Even if what is described and what is mapped has changed, the monument is still scheduled.

Scheduled monument consent is required to carry out certain work, including repairs, to scheduled monuments. Applications for scheduled monument consent are made to us. We are happy to discuss your proposals with you before you apply and we do not charge for advice or consent. More information about consent and how to apply for it can be found on our website at

Find out more about scheduling and our other designations at You can contact us on 0131 668 8914 or at


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Printed: 04/03/2024 02:45