Survey Data

Reg No




Categories of Special Interest


Original Use

Canal overflow

In Use As

Canal overflow


1810 - 1820


223053, 260065

Date Recorded


Date Updated



Single-arch canal overflow associated with the Royal Canal (main branch), built c. 1817. Segmental-headed arch with dressed limestone voussoirs. Squared limestone rubble abutments, barrel and spandrels. Squared limestone retaining wall to the west, adjacent to canal. Concrete lintel/lintel repairs to the west elevation. Weir/overflow (on segmental-plan) to the west, adjacent to canal, having dressed limestone coping. Canal towpath over overflow. Located on the east bank of the Royal Canal adjacent to Scally’s Bridge (13402338), and to the north of Abbeyshrule.


This simple but well-built structure was originally constructed as a canal overflow associated with the Royal Canal (main branch). It was built to carry away excess water away from the canal and discharges it into the River Inny adjacent to the east. Although humble and utilitarian in form, this structure has an elegant and well-built arch and weir. The use of good quality masonry is testament to the attention to detail afforded to even the most mundane of features by the Royal Canal Company during the construction of the canal. This overflow is part of an extensive collection of canal-related structures in County Longford, and is an integral element of the built heritage of the area.