The brick structure found on the Kollidam near Koogur in Tiruchi district.

| Photo Credit: Special Arrangement

Brick structures that were found on the Kollidam river bed at Koogur near Lalgudi in Tiruchi district, close to the ancient Kallanai dam, a few days ago are probably the remains of a Sangam-age irrigation structure, according to the Archaeological Survey of India (ASI).“Brick remains were identified at two places on the river Kollidam, about 500 metres to the south of the Moongil Karuppar Temple. The first was a semi-circular brick wall, of which only two courses were visible above the water. The second, located to the east, was fully submerged. Underwater observation revealed two walls running parallel to each other, with a gap between them, suggestive of an entrance or a channel opening,” P. Aravazhi, Superintending Archaeologist (in-charge), ASI, Tiruchi Circle, told The Hindu.

Archaeologists from ASI, Tiruchi Circle, inspect the brick structure on the Kollidam along with villagers on Tuesday.

| Photo Credit: