Survey Data

Reg No

50060121


Rating

Regional


Categories of Special Interest

Architectural, Social, Technical


Original Use

Lock


In Use As

Lock


Date

1790 - 1795


Coordinates

310963, 237412


Date Recorded

24/08/2014


Date Updated

--/--/--


Description

Double lock, constructed c.1792. Dressed limestone chamber walls with gate recesses, cast-iron mooring rings and dressed limestone coping. Timber mooring posts to south side of chamber. Replacement timber and mild steel lock gates with timber balance beams. Walls of lower chamber slope up to middle gate with flight of replacement stone steps. Recesses for stop gates to eastern end. Canal expands to west to provide mooring area.

Appraisal

The Royal Canal Company was established in 1789 to construct a canal to provide freight and passenger transport between Dublin and the River Shannon. Construction began with the laying of the first stone of the lock at Phibsborough (now the 5th lock) in 1790 and construction was completed to Ashtown by 1792. The chambers exhibit good quality stonework with attractive sloping edges to cope with the change in height between the lower and higher levels, a testament to the skill of the craftsmen involved. One of a number of double-chambered locks on this stretch of the canal, it attests to the skill of the engineers employed by the company.