
18th Lock
Also known as Lock 18, Royal Canal
Thomastown, Killucan-Rathwire
About 18th Lock
The National Inventory rates 18th Lock Regional, one of 28 in Killucan-Rathwire. 18th Lock dates from 1800–1810. 2 other places on the record stand within 400 m.
An attractive and well-built canal lock that forms part of an important group of structures associated with the Royal Canal in Westmeath.
From the National Inventory’s appraisal, record 15402727 · CC BY 4.0 · Department of Housing, Local Government and Heritage
NIAHRead its National Inventory recordThe full description and appraisal, the survey photo and the map · 15402727↗Regional is the National Inventory’s rating for a building of significance in its region; most rated buildings carry it.
Finding 18th Lock
Killucan-Rathwire















2 within 150 m
Every place on the record within this distance; each opens its own page.
Near Killucan-Rathwire: more walls, gates and bridges on the record
All 8 are pictured and within 40 km. Just 14 km away stands Saunder's Bridge, in Mullingar. The farthest is Rathmore Bridge in Edenderry, 18 km away.








Questions about 18th Lock
Is 18th Lock on the National Inventory?
Yes: rated Regional (record 15402727).
Can you visit 18th Lock?
It can be seen from the street; whether you can go inside depends on its owner.
When was 18th Lock built?
Its National Inventory record dates it to 1800–1810.
Is 18th Lock protected?
Being on the National Inventory or the Sites and Monuments Record is a record, not protection by itself: buildings are protected by their council’s Record of Protected Structures, which each council keeps and no national open list gathers, so this page can’t say which are on it.
Source: National Inventory of Architectural Heritage and Sites and Monuments Record, Department of Housing, Local Government and Heritage (CC BY 4.0); Wikidata (CC0).
Sources: National Inventory of Architectural Heritage (buildingsofireland.ie) · Photos: Wikimedia Commons, including the National Library of Ireland’s collections, each credited with its licence and copied to our own server · Wikidata (CC0) for other names and articles. Under Creative Commons Attribution 4.0 (CC BY 4.0).
Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).

