Royal Military Canal, Town Bridge to Twiss Road Bridge
List Entry Summary
This monument is scheduled under the Ancient Monuments and Archaeological Areas Act 1979 as amended as it appears to the Secretary of State to be of national importance. This entry is a copy, the original is held by the Department for Digital, Culture, Media and Sport.
Name: Royal Military Canal, Town Bridge to Twiss Road Bridge
List entry Number: 1005116
The monument may lie within the boundary of more than one authority.
District Type: District Authority
National Park: Not applicable to this List entry.
Grade: Not applicable to this List entry.
Date first scheduled: 17-Dec-1986
Date of most recent amendment: Not applicable to this List entry.
Legacy System Information
The contents of this record have been generated from a legacy data system.
Legacy System: RSM - OCN
UID: KE 396 S
This list entry does not comprise part of an Asset Grouping. Asset Groupings are not part of the official record but are added later for information.
List entry Description
Summary of Monument
A 692m length of the Royal Military Canal from Town Bridge to Twiss Road Bridge.
Reasons for Designation
The Royal Military Canal was a massive coastal defence work constructed between 1804 and 1809. Its purpose was to separate the expected landing and deployment of Napoleon's troops upon the coast of Romney Marsh and Walland Marsh from the interior of the country. The Government initially considered flooding the marsh but favoured the canal, which was the idea of Lt. Col. Brown, the Assistant Quartermaster-General. He carried out a survey and work commenced in 1804 at the height of the invasion scare, with John Rennie as consulting engineer (until 1805). The canal ran a total of about 28 miles from Shorncliffe Camp via Hythe inland to Appledore, to join the Eastern River Rother at Iden lock, from where it became part of first the Rother and then the River Brede, turning into a canal again from Winchelsea to Cliff End on the coast. Excavated earth formed the banquette and parapet on the landward side of the canal and behind this was an army supply route, the Royal Military Road. On the opposite side were the tow path and wharves. It also included a back and a front drain. The canal and parapets were so built that gun positions could be provided at the end of each length to flank the crossings. However by the time the canal was completed in 1809, the threat of invasion had passed, following Napoleon’s defeat at the Battle of Trafalgar, and it was to some extent obsolete. In 1810, the canal was opened for public use and tolls were also collected for use of the Royal Military Road. In the later 19th century public use declined. The last toll was collected at Iden Lock in December 1909. Today Iden lock is a sluice, so the main part of the canal is isolated. The eastern section of the canal is still in use for pleasure boats.
The Royal Military Canal was an important element in the Napoleonic defences of south-east England and is the only military canal in the country. It is a unique defensive work that bears significant testament to a period when modern Britain faced the most serious threat of invasion prior to the major conflicts of the 20th century.
Despite some disturbance and development, the 692m length of the Royal Military Canal from Town Bridge to Twiss Road Bridge survives relatively well. It will contain archaeological information relating to its construction and use.
This record was the subject of a minor enhancement on 12 August 2014. The record has been generated from an "old county number" (OCN) scheduling record. These are monuments that were not reviewed under the Monuments Protection Programme and are some of our oldest designation records.
The monument includes a length of the Royal Military Canal, an early 19th century defensive work, situated on low-lying ground in Hythe. It curves east to south-east to ENE for 60m from Town Bridge before maintaining a straight course ENE for the remaining 632m to Twiss Road Bridge.
The length of canal is water-filled and the surviving features include the parapet, a bank on the north side, and the Royal Military Road which largely survives as buried remains.
Romney Marsh Countryside Project: Royal Military Canal website, accessed from http://www.royalmilitarycanal.com/pages/index.asp
NMR LINEAR38. PastScape 1042908.,
National Grid Reference: TR 16400 34656
The above map is for quick reference purposes only and may not be to scale. For a copy of the full scale map, please see the attached PDF - 1005116 .pdf
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This copy shows the entry on 20-Sep-2018 at 11:22:42.
End of official listing