Mill Weir

According to the Civil Survey (1654-6) the townland of Ballygriffin has two weirs for fishing (Simington 1934, vol. 2, 8). On the 1st (1840) ed. OS 6-inch map the E-W weir is depicted crossing the River Suir N and S of an island in the middle of the river and is called 'Mill Weir'. The two sections of the weir are indicated on the 2nd (1903-04) ed. as narrow islands which do not completely cross the river. The weir is not visible above the surface of the water, though it is likely that a large portion of the weir has been incorporated in the present island which consists of the smaller islands depicted on the 1st and 2nd ed. OS maps and intervening channels which have been infilled. Compiled by: Jean Farrelly Date of revised upload: 27 October 2015